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  MTD 21B-39M5004 (2012) Tiller Parts
MTD Tiller Replacement  For Model 21B-39M5004 (2012)

MTD Tiller Replacement Parts For Model 21B-39M5004 (2012)

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Popular Parts for MTD 21B-39M5004 (2012)

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170-V0B_Air_Cleaner_And_Muffler
170-V0B_Carburetor
170-V0B_Crankcase
170-V0B_Cylinder_Head
170-V0B_Flywheel_And_Shroud
170-V0B_Fuel_Tank
Handle_Assembly_21B-39M
Quick_Reference_21B-39M
Tine_And_Drive_21B-39M
Showing All Parts
170-V0B_Air_Cleaner_And_Muffler
MTD 21B-39M5004 (2012) Tiller 170-V0B_Air_Cleaner_And_Muffler Diagram
 Fig #
20
Muffler Gasket
 $3.99

Part Number:751P11289A

In Stock

In Stock
 $3.99
In Stock
 $3.99
21
Nut - M8
 $4.44

Part Number:712-04214

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.44
Usually ships in 7 - 12 business days
 $4.44
22
Muffler Assembly
 $87.05

Part Number:951-12294

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $87.05
Usually ships in 7 - 12 business days
 $87.05
23
Hex Flange Bolt M5x10
 $3.99

Part Number:710-09956

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
30
Air Filter Heating
 $23.84

Part Number:951-10806

In Stock

In Stock
 $23.84
In Stock
 $23.84
31
Nut
 $6.84

Part Number:712-04213

In Stock

In Stock
 $6.84
In Stock
 $6.84
32
Self-tapping Bolt
 $3.99

Part Number:710-05275

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
34
Housing-air Filter
 $19.48

Part Number:951-12135

Backorder: No ETA

Backorder: No ETA
 $19.48
Backorder: No ETA
 $19.48
35
Air Cleaner With P
 $15.74

Part Number:951-10794

In Stock

In Stock
 $15.74
In Stock
 $15.74
36
Air Cleaner With P
 $15.74

Part Number:951-10794

In Stock

In Stock
 $15.74
In Stock
 $15.74
37
Air Cleaner Cover
 $19.48

Part Number:951-12136

In Stock

In Stock
 $19.48
In Stock
 $19.48
170-V0B_Carburetor
MTD 21B-39M5004 (2012) Tiller 170-V0B_Carburetor Diagram
 Fig #
28
Carburetor Assembl
 $126.18

Part Number:951-12785

In Stock

In Stock

Note: Not Shown (Incl. Ref No. A-X)
 $126.18
In Stock
 $126.18
29
Carburetor Gasket
 $5.57

Part Number:951-11571

In Stock

In Stock

Note: Furnish 951-12026, Gasket Kit External
 $5.57
In Stock
 $5.57
a
Choke Control Leve
 $12.05

Part Number:951-12811

In Stock

In Stock

Note: Furnish 951-10800a, Carburetor Kit Major
 $12.05
In Stock
 $12.05
s
Fuel Bowl O-ring
 $6.96

Part Number:951-11589A

In Stock

In Stock

Note: Furnish 951-11773, Carburetor Kit Major
 $6.96
In Stock
 $6.96
u
Fuel Bowl Gasket
 $5.84

Part Number:951-11348A

In Stock

In Stock

Note: Furnish 951-11773, Carburetor Kit Major
 $5.84
In Stock
 $5.84
v
Fuel Bowl Mounting Bolt
 $4.21

Part Number:710-04945

In Stock

In Stock

Note: Furnish 951-12011, Carburetor Assy
 $4.21
In Stock
 $4.21
w
Fuel Drain Plug Gasket
 $4.21

Part Number:951-11349A

In Stock

In Stock

Note: Furnish 951-11773, Carburetor Kit Major
 $4.21
In Stock
 $4.21
x
Plug-fuel Drain
 $4.21

Part Number:710-04938

In Stock

In Stock

Note: Furnish 951-12011, Carburetor Assy
 $4.21
In Stock
 $4.21
800
Carburetor Kit-maj
 $62.43

Part Number:951-12119A

In Stock

In Stock

Note: (Incl.H,I,J,M,N,O,P,Q,R,S,U,W)
 $62.43
In Stock
 $62.43
170-V0B_Crankcase
MTD 21B-39M5004 (2012) Tiller 170-V0B_Crankcase Diagram
 Fig #
44
Piston Ring Set
 $6.70

Part Number:751P12111A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $6.70
Usually ships in 7 - 12 business days
 $6.70
45
Piston Pin Snap Ring
 $4.07

Part Number:951-11632

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $4.07
Usually ships in 7 - 12 business days
 $4.07
46
Piston
 $36.11

Part Number:951-12007

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $36.11
Usually ships in 7 - 12 business days
 $36.11
47
Piston Pin
 $7.67

Part Number:951-11633

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $7.67
Usually ships in 7 - 12 business days
 $7.67
48
Bolt - M6 X 12 Zin
 $4.40

Part Number:710-04915

In Stock

In Stock
 $4.40
In Stock
 $4.40
49
Shield - Air
 $9.34

Part Number:951-11113

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.34
Usually ships in 7 - 12 business days
 $9.34
50
Connecting Rod
 $10.22

Part Number:751P11573A

In Stock

In Stock
 $10.22
In Stock
 $10.22
51
Shaft-governor 165
 $16.06

Part Number:951-14053

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $16.06
Usually ships in 7 - 12 business days
 $16.06
52
O-ring:gov Arm
 $4.03

Part Number:736-04461

In Stock

In Stock

Note: Also Available in Kit Below
 $4.03
In Stock
 $4.03
53
Governor Seal Obsolete - Not Available
 $3.99

Part Number:951-11902

Discontinued

Discontinued

Note: Also Available in Kit Below
 $3.99
Discontinued
54
Cotter Pin
 $4.21

Part Number:714-04078

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-11059a, Gasket Kit Complete
 $4.21
Usually ships in 7 - 12 business days
 $4.21
55
Camshaft Assembly
 $66.72

Part Number:951-11575

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $66.72
Usually ships in 7 - 12 business days
 $66.72
56
Bearing
 $35.05

Part Number:951-11369

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $35.05
Usually ships in 7 - 12 business days
 $35.05
57
Crankshaft Assembl
 $140.13

Part Number:951-12160

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $140.13
Usually ships in 7 - 12 business days
 $140.13
58
Flywheel Key
 $3.99

Part Number:751P10307A

In Stock

In Stock

Note: Also Available in Kit Below
 $3.99
In Stock
 $3.99
59
Governor Gear/shaft Assembly
 $3.99

Part Number:751P11576A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
60
Dowel Pin 9 X 14
 $4.21

Part Number:715-04096A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.21
Usually ships in 7 - 12 business days
 $4.21
61
Pin - Dowel
 $3.99

Part Number:715-04089

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-10414b, Short Block Assembly
 $3.99
Usually ships in 7 - 12 business days
 $3.99
62
Crankcase Gasket
 $3.99

Part Number:751P11371B

In Stock

In Stock
 $3.99
In Stock
 $3.99
63
Crankcase Cover Co
 $117.25

Part Number:951-12125

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $117.25
Usually ships in 7 - 12 business days
 $117.25
64
Bolt
 $4.21

Part Number:710-04932

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $4.21
Usually ships in 7 - 12 business days
 $4.21
65
Oil Fill Plug Asse
 $7.03

Part Number:951-11283

In Stock

In Stock

Note: Also Available in Kit Below
 $7.03
In Stock
 $7.03
65a
O-ring 15.8 X 2.5
 $4.07

Part Number:951-11577

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-11246, Crankcase Cover Kit
 $4.07
Usually ships in 7 - 12 business days
 $4.07
66
Oil Seal 25 X 41.2
 $15.02

Part Number:951-11578

In Stock

In Stock

Note: Furnish 951-10802a, Gasket Kit Complete
 $15.02
In Stock
 $15.02
67
Short Block
 $268.43

Part Number:951-12155

In Stock

In Stock

Note: (Incl Ref. 4,20,25,26,38,40,41,44-47,50-70)
 $268.43
In Stock
 $268.43
68
Oil Drain Plug Washer
 $6.92

Part Number:736-04440A

In Stock

In Stock

Note: Also Available in Kit Below
 $6.92
In Stock
 $6.92
69
Bolt - Drain Plug
 $6.75

Part Number:710-04906

In Stock

In Stock

Note: Also Available in Kit Below
 $6.75
In Stock
 $6.75
112
Oil Drain Plug And Washer Ass
 $9.17

Part Number:951-10370

In Stock

In Stock

Note: (Incl. Ref. No. 16-17)
 $9.17
In Stock
 $9.17
113
Oil Fill Plug Asse
 $7.03

Part Number:951-11283

In Stock

In Stock

Note: Also Available in Kit Below
 $7.03
In Stock
 $7.03
170-V0B_Cylinder_Head
MTD 21B-39M5004 (2012) Tiller 170-V0B_Cylinder_Head Diagram
 Fig #
1
Flange Bolt M6 X 1
 $6.64

Part Number:710-04968

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-11187, Short Block Assembly
 $6.64
Usually ships in 7 - 12 business days
 $6.64
2
Valve Cover
 $15.59

Part Number:951-11054B

In Stock

In Stock
 $15.59
In Stock
 $15.59
3
Hose-breather
 $6.35

Part Number:731-07059

In Stock

In Stock
 $6.35
In Stock
 $6.35
3a
Hose Clamp
 $4.40

Part Number:726-04101

In Stock

In Stock
 $4.40
In Stock
 $4.40
4
Valve Cover Gasket
 $10.33

Part Number:751P11565B

In Stock

In Stock

Note: Also Available in Kit Below
 $10.33
In Stock
 $10.33
5
Rocker Arm Assembl
 $40.49

Part Number:951-11892

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Incl. Ref No.. 7-10
 $40.49
Usually ships in 7 - 12 business days
 $40.49
6
Nut - Pivot Lockin
 $9.43

Part Number:751-11124

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $9.43
Usually ships in 7 - 12 business days
 $9.43
7
Valve Adjusting Nut
 $10.48

Part Number:751-11123

In Stock

In Stock

Note: Also Available in Kit Below
 $10.48
In Stock
 $10.48
8
Rocker Arm
 $7.66

Part Number:951-11893

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $7.66
Usually ships in 7 - 12 business days
 $7.66
9
Bolt - Pivot
 $6.84

Part Number:710-04902

In Stock

In Stock

Note: Also Available in Kit Below
 $6.84
In Stock
 $6.84
10
Push Rod Guide
 $8.71

Part Number:951-11895

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $8.71
Usually ships in 7 - 12 business days
 $8.71
11
Intake Valve Sprin
 $4.07

Part Number:951-12000

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $4.07
Usually ships in 7 - 12 business days
 $4.07
12
Exhaust Valve Adjuster
 $3.99

Part Number:751P12002A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $3.99
Usually ships in 7 - 12 business days
 $3.99
13
Exhaust Valve Spri
 $4.07

Part Number:951-12003

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $4.07
Usually ships in 7 - 12 business days
 $4.07
14
Valve Spring
 $3.99

Part Number:751P12004A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
15
Intake Valve Seal
 $10.92

Part Number:951-11894

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $10.92
Usually ships in 7 - 12 business days
 $10.92
16
Bolt - M8 X 55 Zin
 $3.99

Part Number:710-04933

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
17
Cylinder Head Asm
 $172.08

Part Number:951-10722B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Incl.4,5,7-14,16,17,21,29,30,46,50,51)
 $172.08
Usually ships in 7 - 12 business days
 $172.08
18
Spark Plug
 $7.31

Part Number:951-10292A

In Stock

In Stock
 $7.31
In Stock
 $7.31
19
Stud-m8 X 36
 $4.20

Part Number:710-04911

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-12027, Muffler Stud Assembly
 $4.20
Usually ships in 7 - 12 business days
 $4.20
19
Stud 8 X 3
 $9.05

Part Number:951-10657

In Stock

In Stock
 $9.05
In Stock
 $9.05
24
Stud M6 X 110 Carb
 $4.27

Part Number:710-05101

In Stock

In Stock
 $4.27
In Stock
 $4.27
25
Carburetor Insulator Gasket
 $4.99

Part Number:751P11567B

In Stock

In Stock

Note: Also Available in Kit Below
 $4.99
In Stock
 $4.99
26
Carburetor Insulator
 $3.99

Part Number:751P11568A

In Stock

In Stock

Note: Furnish 951-12026, Gasket Kit External
 $3.99
In Stock
 $3.99
27
Carburetor Gasket
 $5.63

Part Number:751P12005A

In Stock

In Stock
 $5.63
In Stock
 $5.63
38
Gasket-cylinder He
 $11.95

Part Number:951-11572

In Stock

In Stock

Note: Also Available in Kit Below
 $11.95
In Stock
 $11.95
39
Kit-push Rod
 $18.08

Part Number:951-10648

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-10647 Valve Kit
 $18.08
Usually ships in 7 - 12 business days
 $18.08
40
Tappet
 $8.23

Part Number:951-11899

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $8.23
Usually ships in 7 - 12 business days
 $8.23
41
Pin-dowl 10 X 16
 $4.20

Part Number:715-04108

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $4.20
Usually ships in 7 - 12 business days
 $4.20
42
Valve Kit
 $65.71

Part Number:951-10647A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $65.71
Usually ships in 7 - 12 business days
 $65.71
43
Valve Kit
 $65.71

Part Number:951-10647A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Also Available in Kit Below
 $65.71
Usually ships in 7 - 12 business days
 $65.71
114
Valve Cover Kit
 $28.76

Part Number:951-12626

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $28.76
Usually ships in 7 - 12 business days
 $28.76
800
Cylinder Head Serv
 $19.26

Part Number:951-10819

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Incl.6,17,18,46)
 $19.26
Usually ships in 7 - 12 business days
 $19.26
801
Gasket Kit-externa
 $21.83

Part Number:951-12120

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $21.83
Usually ships in 7 - 12 business days
 $21.83
802
Gasket Kit-complet
 $59.60

Part Number:951-12121A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Incl.6,22,27-29,35,40,54,55,64,70 & 78)
 $59.60
Usually ships in 7 - 12 business days
 $59.60
170-V0B_Flywheel_And_Shroud
MTD 21B-39M5004 (2012) Tiller 170-V0B_Flywheel_And_Shroud Diagram
 Fig #
70
Oil Seal-25 X 41.2
 $14.31

Part Number:951-12126

In Stock

In Stock
 $14.31
In Stock
 $14.31
71
Ignition Coil
 $97.53

Part Number:951-10792

Backorder: No ETA

Backorder: No ETA
 $97.53
Backorder: No ETA
 $97.53
72
Bolt M6x25 Ignition Coil/brake
 $3.99

Part Number:710-04919

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
73
Flywheel
 $135.16

Part Number:951-10805

In Stock

In Stock
 $135.16
In Stock
 $135.16
74
Cooling Fan
 $23.49

Part Number:951-10909B

In Stock

In Stock
 $23.49
In Stock
 $23.49
75
Starter Cup
 $17.50

Part Number:951-10911

In Stock

In Stock
 $17.50
In Stock
 $17.50
76
Nut
 $7.07

Part Number:712-04287

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.07
Usually ships in 7 - 12 business days
 $7.07
77
Bolt - M6 X 12 Zin
 $4.40

Part Number:710-04915

In Stock

In Stock
 $4.40
In Stock
 $4.40
79
Blower Housing
 $97.53

Part Number:951-11583

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $97.53
Usually ships in 7 - 12 business days
 $97.53
80
Washer-flat
 $6.84

Part Number:736-04455B

In Stock

In Stock
 $6.84
In Stock
 $6.84
81
Flange Bolt M6 X 1
 $7.00

Part Number:710-04974

In Stock

In Stock
 $7.00
In Stock
 $7.00
82
Recoil Starter Asm
 $91.06

Part Number:951-12418

In Stock

In Stock
 $91.06
In Stock
 $91.06
109
Nut
 $6.65

Part Number:712-05015

In Stock

In Stock

Note: Without a Numeric Call-Out in Image
 $6.65
In Stock
 $6.65
110
Flange Bolt
 $4.10

Part Number:710-04918

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.10
Usually ships in 7 - 12 business days
 $4.10
111
Shield - Blower Ho
 $7.38

Part Number:951-11109

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.38
Usually ships in 7 - 12 business days
 $7.38
170-V0B_Fuel_Tank
MTD 21B-39M5004 (2012) Tiller 170-V0B_Fuel_Tank Diagram
 Fig #
1
Flange Bolt M6 X 1
 $6.64

Part Number:710-04968

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Furnish 951-11187, Short Block Assembly
 $6.64
Usually ships in 7 - 12 business days
 $6.64
83
Throttle Knob
 $3.99

Part Number:951-11067

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
84
Primer Bracket
 $21.21

Part Number:951-12131

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $21.21
Usually ships in 7 - 12 business days
 $21.21
85
Bolt - M6 X 12 Zin
 $4.40

Part Number:710-04915

In Stock

In Stock
 $4.40
In Stock
 $4.40
86
Governor Spring
 $7.49

Part Number:951-11585

In Stock

In Stock
 $7.49
In Stock
 $7.49
87
Throttle Linkage Spring
 $3.99

Part Number:751P10664A

In Stock

In Stock
 $3.99
In Stock
 $3.99
88
Rod Governor
 $3.99

Part Number:751P10665A

In Stock

In Stock
 $3.99
In Stock
 $3.99
90
Governor Arm Bracket
 $7.94

Part Number:951-11106

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.94
Usually ships in 7 - 12 business days
 $7.94
91
Nut
 $6.65

Part Number:712-05015

In Stock

In Stock

Note: Without a Numeric Call-Out in Image
 $6.65
In Stock
 $6.65
92
Bolt - M6 X 21 Gov
 $6.51

Part Number:710-04908

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.51
Usually ships in 7 - 12 business days
 $6.51
93
Kit-fuel Line
 $28.54

Part Number:951-10650

In Stock

In Stock

Note: Incl Ref No. 107 & 108
 $28.54
In Stock
 $28.54
94
Hose Clamp-carb
 $4.15

Part Number:951-11700A

In Stock

In Stock
 $4.15
In Stock
 $4.15
95
Bolt - M6 X 12 Zin
 $4.40

Part Number:710-04915

In Stock

In Stock
 $4.40
In Stock
 $4.40
96
Engine/dipstick Co
 $15.08

Part Number:951-11914

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $15.08
Usually ships in 7 - 12 business days
 $15.08
97
Bolt
 $4.44

Part Number:710-04905

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.44
Usually ships in 7 - 12 business days
 $4.44
98
Bolt - M6 X 12 Zin
 $4.40

Part Number:710-04915

In Stock

In Stock
 $4.40
In Stock
 $4.40
100
Oil Fill Tube O-ring
 $4.99

Part Number:951-11381

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
101
Dipstick Asm-complet
 $35.40

Part Number:631-05020AP

In Stock

In Stock
 $35.40
In Stock
 $35.40
101a
Oil Fill Tube Asse
 $16.66

Part Number:951-11913

In Stock

In Stock

Note: Incl Ref No. 114 & 115
 $16.66
In Stock
 $16.66
102
O-ring Dipstick
 $4.25

Part Number:951-11904

In Stock

In Stock

Note: Furnish 951-11912, Dipstick Assy
 $4.25
In Stock
 $4.25
103
Dipstick Assembly
 $15.29

Part Number:951-11912

In Stock

In Stock

Note: Incl Ref No. 116 & 117
 $15.29
In Stock
 $15.29
104
Fuel Cap
 $16.78

Part Number:951-10917B

In Stock

In Stock

Note: (Incl. Gasket & Retainer)
 $16.78
In Stock
 $16.78
106
Fuel Level Indicat
 $9.70

Part Number:951-11933

In Stock

In Stock
 $9.70
In Stock
 $9.70
107
Fuel Tank
 $80.80

Part Number:951-10653B

In Stock

In Stock
 $80.80
In Stock
 $80.80
108
Fuel Tank Nipple
 $16.09

Part Number:951-10651

In Stock

In Stock
 $16.09
In Stock
 $16.09
Handle_Assembly_21B-39M
MTD 21B-39M5004 (2012) Tiller Handle_Assembly_21B-39M Diagram
 Fig #
1
Hex L-stop Nut 1/4-20 Thd.
 $6.05

Part Number:712-0442

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.05
Usually ships in 7 - 12 business days
 $6.05
2
Fl. Wash. .271 X .630 X .065
 $6.11

Part Number:736-3020

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.11
Usually ships in 7 - 12 business days
 $6.11
3
Grip-reverse Lever
 $8.50

Part Number:720-0270A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Code N
 $8.50
Usually ships in 7 - 12 business days
 $8.50
4
Cover-handle Panel
 $55.84

Part Number:731-1600

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Model 21a-39m5010
 $55.84
Usually ships in 7 - 12 business days
 $55.84
5
Screw-truss Tap
 $4.43

Part Number:710-0779A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: For Model 587b
 $4.43
Usually ships in 7 - 12 business days
 $4.43
6
Grip
 $11.50

Part Number:720-0274

In Stock

In Stock

Note: Models W/Folding Handles
 $11.50
In Stock
 $11.50
7
Hex Nut 1/4-20 Gr. 5
 $4.66

Part Number:712-3006

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (B&s Intek Twin)
 $4.66
Usually ships in 7 - 12 business days
 $4.66
8
Nut-speed
 $6.84

Part Number:726-0135

In Stock

In Stock

Note: (Optional)
 $6.84
In Stock
 $6.84
9
Handle Assy-clutch
 $50.61

Part Number:686-0083-0637

In Stock

In Stock
 $50.61
In Stock
 $50.61
10
Grip-clutch
 $4.88

Part Number:720-0269

In Stock

In Stock

Note: New Part
 $4.88
In Stock
 $4.88
11
Screw-hex 1/4-20 X
 $4.21

Part Number:710-0641

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Not Shown)
 $4.21
Usually ships in 7 - 12 business days
 $4.21
12
Holder-clutch Hand
 $16.42

Part Number:931-1645B

In Stock

In Stock
 $16.42
In Stock
 $16.42
13
Flat Washer
 $6.84

Part Number:736-0140

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.84
Usually ships in 7 - 12 business days
 $6.84
14
Handle Asm:reverse
 $21.74

Part Number:686-0014C-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: If Equipped
 $21.74
Usually ships in 7 - 12 business days
 $21.74
15
Use 936-0264
 $6.90

Part Number:736-0264

In Stock

In Stock

Note: (Model 017r Only)
 $6.90
In Stock
 $6.90
16
Handle:asm:longhorn
 $114.92

Part Number:649-04040-0691

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $114.92
Usually ships in 7 - 12 business days
 $114.92
17
Tube-brace Handle
 $51.53

Part Number:749-1401A-0691

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $51.53
Usually ships in 7 - 12 business days
 $51.53
18
Lock Washer .50
 $4.49

Part Number:736-0921

In Stock

In Stock
 $4.49
In Stock
 $4.49
19
Screw1/2-20x.75 Lg
 $6.92

Part Number:710-3194

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Briggs & Stratton Intek Engine or Honda Engine
 $6.92
Usually ships in 7 - 12 business days
 $6.92
20
Bar-depth
 $40.17

Part Number:786-0005-0637

In Stock

In Stock

Note: New Part
 $40.17
In Stock
 $40.17
21
Pin:cotter
 $4.88

Part Number:714-04043

In Stock

In Stock

Note: 13wi93ap010 Model Only
 $4.88
In Stock
 $4.88
22
Nut-flglk 5/16-18
 $4.10

Part Number:712-04063

In Stock

In Stock

Note: Use With 618-04378a Transmission, Double "D" Input Shaft
 $4.10
In Stock
 $4.10
23
Bracket-tailpiece-
 $23.60

Part Number:786-0003-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $23.60
Usually ships in 7 - 12 business days
 $23.60
24
Bracket-tailpiece-
 $35.70

Part Number:786-0004-0637

In Stock

In Stock

Note: New Part
 $35.70
In Stock
 $35.70
25
Pin, Tine
 $4.65

Part Number:711-0415

In Stock

In Stock
 $4.65
In Stock
 $4.65
26
Screw-hex Cap
 $4.32

Part Number:710-0805A

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.32
In Stock
 $4.32
27
Screw-hex 5/16-18
 $6.11

Part Number:710-0189

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Used W/20
 $6.11
Usually ships in 7 - 12 business days
 $6.11
28
Washer
 $4.32

Part Number:736-0242

In Stock

In Stock

Note: Not Used in This Application
 $4.32
In Stock
 $4.32
29
Hex Nut-special
 $17.67

Part Number:711-1036A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $17.67
Usually ships in 7 - 12 business days
 $17.67
30
Washer-lock 5/16
 $4.95

Part Number:936-0119

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.95
In Stock
 $4.95
31
Hex Bolt 5/16-18 X .75
 $4.33

Part Number:710-3008

In Stock

In Stock

Note: Models With Electric Pto Only
 $4.33
In Stock
 $4.33
32
Bracket-cable Guide
 $27.40

Part Number:786-0129-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $27.40
Usually ships in 7 - 12 business days
 $27.40
33
Screw, 5/16-18 X .625
 $4.57

Part Number:710-0604A

In Stock

In Stock

Note: for Model 146w834h401
 $4.57
In Stock
 $4.57
34
Screw-hex Wash Tap
 $4.66

Part Number:710-0602

In Stock

In Stock

Note: Quantity of 3 for Model Hwt-5e Only; Quantity of 1 for Model Hwt-4
 $4.66
In Stock
 $4.66
35
Bolt Shld.5/16x18
 $8.02

Part Number:738-0934A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.02
Usually ships in 7 - 12 business days
 $8.02
36
Knob-handle
 $15.76

Part Number:720-0195

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Used W/ Std. Briggs & Stratton and Tecumseh Engines
 $15.76
Usually ships in 7 - 12 business days
 $15.76
37
Spacer
 $6.90

Part Number:750-0470

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Used on Units With Electric P.T.O.
 $6.90
Usually ships in 7 - 12 business days
 $6.90
38
Washer-lock 7/16
 $4.44

Part Number:936-0171

In Stock

In Stock
 $4.44
In Stock
 $4.44
39
Nut-jam 7/16-20
 $4.49

Part Number:912-0240

In Stock

In Stock

Note: (Use With 911-1107)
 $4.49
In Stock
 $4.49
40
Hex Bolt 5/16-18 X 2.75 Lg.
 $4.99

Part Number:710-0176

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
41
Nut-hex Ins
 $4.10

Part Number:712-0429

In Stock

In Stock

Note: (Code: N)
 $4.10
In Stock
 $4.10
42
Bracket Assy-wheel
 $89.92

Part Number:686-0081A-0637

In Stock

In Stock

Note: Code N
 $89.92
In Stock
 $89.92
43
Wheel Assy W/tire
 $76.55

Part Number:734-1268

In Stock

In Stock

Note: (Shown)
 $76.55
In Stock
 $76.55
44
Screw-shldr .496x1
 $8.05

Part Number:738-0929

In Stock

In Stock

Note: New Part
 $8.05
In Stock
 $8.05
45
Spacer
 $7.00

Part Number:750-0890

In Stock

In Stock

Note: (Not Shown)
 $7.00
In Stock
 $7.00
46
Bolt-carriage Spec
 $6.92

Part Number:710-1236

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Special)
 $6.92
Usually ships in 7 - 12 business days
 $6.92
47
Washer
 $4.32

Part Number:736-0242

In Stock

In Stock

Note: Not Used in This Application
 $4.32
In Stock
 $4.32
Quick_Reference_21B-39M
MTD 21B-39M5004 (2012) Tiller Quick_Reference_21B-39M Diagram
 Fig #
800
Spark Plug
 $7.31

Part Number:951-10292A

In Stock

In Stock
 $7.31
In Stock
 $7.31
800
Air Cleaner With P
 $15.74

Part Number:951-10794

In Stock

In Stock
 $15.74
In Stock
 $15.74
800
Fuel Tank Nipple
 $16.09

Part Number:951-10651

In Stock

In Stock
 $16.09
In Stock
 $16.09
800
Fuel Cap
 $16.78

Part Number:951-10917B

In Stock

In Stock

Note: (Incl. Gasket & Retainer)
 $16.78
In Stock
 $16.78
800
Belt-v
 $37.18

Part Number:954-0428

In Stock

In Stock

Note: New Part
 $37.18
In Stock
 $37.18
800
Belt-v
 $30.87

Part Number:954-0429

In Stock

In Stock

Note: New Part
 $30.87
In Stock
 $30.87
800
Pulley-idler
 $28.20

Part Number:756-0313

In Stock

In Stock

Note: Pully Hole 3/8
 $28.20
In Stock
 $28.20
800
Cable
 $30.75

Part Number:946-0918

In Stock

In Stock

Note: New Part
 $30.75
In Stock
 $30.75
800
Cable-clutch Contr
 $31.44

Part Number:946-0953

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Code N)
 $31.44
Usually ships in 7 - 12 business days
 $31.44
800
Tine Assy-outer Lh
 $61.48

Part Number:642-0023-0637

In Stock

In Stock
 $61.48
In Stock
 $61.48
800
Tine Assy-outer Rh
 $61.48

Part Number:642-0024-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $61.48
Usually ships in 7 - 12 business days
 $61.48
800
Tine Assy-inner-lh
 $61.48

Part Number:642-0003-0637

In Stock

In Stock

Note: New Part
 $61.48
In Stock
 $61.48
800
Tine Assy-inner-rh
 $61.49

Part Number:642-0002-0637

In Stock

In Stock

Note: (Not Shown)
 $61.49
In Stock
 $61.49
800
Wheel Assy W/tire
 $76.55

Part Number:734-1268

In Stock

In Stock

Note: (Shown)
 $76.55
In Stock
 $76.55
800
Grip
 $11.50

Part Number:720-0274

In Stock

In Stock

Note: Models W/Folding Handles
 $11.50
In Stock
 $11.50
800
Knob-handle
 $15.76

Part Number:720-0195

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Used W/ Std. Briggs & Stratton and Tecumseh Engines
 $15.76
Usually ships in 7 - 12 business days
 $15.76
Tine_And_Drive_21B-39M
MTD 21B-39M5004 (2012) Tiller Tine_And_Drive_21B-39M Diagram
 Fig #
1
Nut
 $6.92

Part Number:712-0392

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.92
Usually ships in 7 - 12 business days
 $6.92
2
Fl. Wash. .271 X .630 X .065
 $6.11

Part Number:736-3020

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.11
Usually ships in 7 - 12 business days
 $6.11
3
Screw-hex Wash Sf
 $4.44

Part Number:710-0599

In Stock

In Stock

Note: Not Used on Units With Electric P.T.O.
 $4.44
In Stock
 $4.44
4
Bolt-belt Cover
 $30.92

Part Number:711-0920

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $30.92
Usually ships in 7 - 12 business days
 $30.92
5
Nut-flglk 5/16-18
 $4.10

Part Number:712-04063

In Stock

In Stock

Note: Use With 618-04378a Transmission, Double "D" Input Shaft
 $4.10
In Stock
 $4.10
6
Hex Cap Screw 3/8-16 X 1.25
 $4.16

Part Number:710-3005

In Stock

In Stock

Note: Purchase Locally
 $4.16
In Stock
 $4.16
7
Pulley-idler
 $28.20

Part Number:756-0313

In Stock

In Stock

Note: Pully Hole 3/8
 $28.20
In Stock
 $28.20
8
Keeper-belt Idler
 $9.85

Part Number:786-0149

In Stock

In Stock
 $9.85
In Stock
 $9.85
9
Bracket-idler
 $14.10

Part Number:786-0144-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $14.10
Usually ships in 7 - 12 business days
 $14.10
10
Nut-jam Lock 3/8-1
 $3.99

Part Number:712-0266A

In Stock

In Stock

Note: for Models 587b, 596 and 598.
 $3.99
In Stock
 $3.99
11
Cover Belt
 $93.57

Part Number:786-0057-0662

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $93.57
Usually ships in 7 - 12 business days
 $93.57
12
Shield-tine Export
 $147.77

Part Number:786-0043A-0691

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $147.77
Usually ships in 7 - 12 business days
 $147.77
13
Hex Bolt 5/16-18 X .75
 $4.33

Part Number:710-3008

In Stock

In Stock

Note: Models With Electric Pto Only
 $4.33
In Stock
 $4.33
14
Chain Case Assembly
 $523.67

Part Number:986-0091C

In Stock

In Stock
 $523.67
In Stock
 $523.67
15
Tine Holder
 $42.07

Part Number:686-05008-0637

In Stock

In Stock
 $42.07
In Stock
 $42.07
16
Pin:cotter
 $4.88

Part Number:714-04043

In Stock

In Stock

Note: 13wi93ap010 Model Only
 $4.88
In Stock
 $4.88
17
Pin, Tine
 $4.65

Part Number:711-0415

In Stock

In Stock
 $4.65
In Stock
 $4.65
18
Tine Assy-outer Lh
 $61.48

Part Number:642-0023-0637

In Stock

In Stock
 $61.48
In Stock
 $61.48
18
Tine Assy-outer Rh
 $61.48

Part Number:642-0024-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $61.48
Usually ships in 7 - 12 business days
 $61.48
19
Tine Assy-inner-lh
 $61.48

Part Number:642-0003-0637

In Stock

In Stock

Note: New Part
 $61.48
In Stock
 $61.48
19
Tine Assy-inner-rh
 $61.49

Part Number:642-0002-0637

In Stock

In Stock

Note: (Not Shown)
 $61.49
In Stock
 $61.49
20
Cable
 $30.75

Part Number:946-0918

In Stock

In Stock

Note: New Part
 $30.75
In Stock
 $30.75
21
Cable-clutch Contr
 $31.44

Part Number:946-0953

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Code N)
 $31.44
Usually ships in 7 - 12 business days
 $31.44
22
Pulley
 $41.97

Part Number:756-0585

In Stock

In Stock

Note: New Part
 $41.97
In Stock
 $41.97
23
Spacer
 $11.34

Part Number:950-0892

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $11.34
Usually ships in 7 - 12 business days
 $11.34
24
Adapter-pulley Mtg
 $21.71

Part Number:948-0350

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $21.71
Usually ships in 7 - 12 business days
 $21.71
25
Washer-bell .535 I
 $9.77

Part Number:736-0112

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Used Only With Original Style Throttle Control Assembly
 $9.77
Usually ships in 7 - 12 business days
 $9.77
26
Nut
 $6.92

Part Number:712-3029

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $6.92
Usually ships in 7 - 12 business days
 $6.92
27
Spring-extension R
 $10.87

Part Number:732-0697

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $10.87
Usually ships in 7 - 12 business days
 $10.87
28
Bracket-reverse Mt
 $30.10

Part Number:786-0040B-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $30.10
Usually ships in 7 - 12 business days
 $30.10
29
Washer-lock 5/16
 $4.95

Part Number:936-0119

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.95
In Stock
 $4.95
30
Hex Hd. Screw 5/16-24 X 5/8
 $4.53

Part Number:710-0237

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Tightening Torque: 150-300 In. Lbs.
 $4.53
Usually ships in 7 - 12 business days
 $4.53
31
Outer Engine Pulley Half
 $14.52

Part Number:756-0971

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $14.52
Usually ships in 7 - 12 business days
 $14.52
32
Pulley-engine Half
 $43.17

Part Number:756-0600

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $43.17
Usually ships in 7 - 12 business days
 $43.17
33
Use 936-0452
 $4.66

Part Number:736-0452

In Stock

In Stock
 $4.66
In Stock
 $4.66
34
Screw
 $4.63

Part Number:710-1039

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.63
In Stock
 $4.63
35
Arm Assy-reverse
 $43.56

Part Number:686-0013

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $43.56
Usually ships in 7 - 12 business days
 $43.56
36
Plate-keeper
 $8.52

Part Number:786-0041-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.52
Usually ships in 7 - 12 business days
 $8.52
37
Screw-hex, Slf-tap
 $6.58

Part Number:710-0502A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Used on Briggs and Stratton Engines Only
 $6.58
Usually ships in 7 - 12 business days
 $6.58
38
Plate-engine Mount
 $20.91

Part Number:786-0145A-0691

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $20.91
Usually ships in 7 - 12 business days
 $20.91
39
Bracket-tine Shiel
 $10.68

Part Number:786-0053-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $10.68
Usually ships in 7 - 12 business days
 $10.68
40
Washer-lock 7/16
 $4.44

Part Number:936-0171

In Stock

In Stock
 $4.44
In Stock
 $4.44
41
Nut-jam 7/16-20
 $4.49

Part Number:912-0240

In Stock

In Stock

Note: (Use With 911-1107)
 $4.49
In Stock
 $4.49
42
Belt-v
 $37.18

Part Number:954-0428

In Stock

In Stock

Note: New Part
 $37.18
In Stock
 $37.18
43
Belt-v
 $30.87

Part Number:954-0429

In Stock

In Stock

Note: New Part
 $30.87
In Stock
 $30.87
44
Use 938-0102
 $10.62

Part Number:738-0102

In Stock

In Stock

Note: (282 Only)
 $10.62
In Stock
 $10.62
45
Screw-shldr .560x.
 $7.00

Part Number:738-0930

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $7.00
Usually ships in 7 - 12 business days
 $7.00
46
Nut-hex Flange Loc
 $4.02

Part Number:712-3004A

In Stock

In Stock

Note: Found on Models Equipped With a Manual Pto Only.
 $4.02
In Stock
 $4.02
 Fig #
Cultivator Parts

Repair Guides for MTD Tiller 21B-39M5004 (2012)

Quick Fix: How to Replace the Spark Plug in a Small Engine

This video will help you replace the spark plug on a small engine which will help get your gas powered equipment up and running again.

Quick Fix: How to Clean a Spark Arrestor Screen on a Small 2-Cycle Engine

This repair video will instruct you how to repair a dirty or damaged spark arrestor on your small engine.

How to Test a Small Engine for Spark

If your small engine isn't starting, you'll need to diagnose many issues including the spark plug. This video walks you through the steps of how to test for a spark using a spark tester.

How to Replace the Fuel Filters in Your Outdoor Power Equipment

This video will help you troubleshoot your fuel-line replacement repairs.

Questions & Answers for MTD 21B-39M5004 (2012)


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