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MTD 478-SU (2009 and Before) Engine

MTD 478-SU (2009 and Before) Engine Parts

We Sell Only Genuine MTD Parts
Popular Parts
 Fig #
1
Bolt M838
 $5.54

Part Number:710-06061

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.54
Ships in 4 - 9 business days
 $5.54
2
Bolt M6x16
 $5.64

Part Number:710-04968

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11187, Short Block Assembly
 $5.64
Ships in 4 - 9 business days
 $5.64
3
Dipstick Tube
 $15.56

Part Number:951-11206

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $15.56
Ships in 4 - 9 business days
 $15.56
4
Bolt M6X12
 $3.74

Part Number:710-04915

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $3.74
Ships in 4 - 9 business days
 $3.74
7
Dipstick Assembly
 $23.10

Part Number:951-11205

Backorder: No ETA

Backorder: No ETA

Note: (Incl. Ref No. 5,6) - Incl. Ref No. 5,6
 $23.10
Backorder: No ETA
8
Oil Seal 30x46x8
 $13.23

Part Number:951-11372

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11187, Short Block Assembly
 $13.23
Ships in 4 - 9 business days
 $13.23
11
Crankcase Cover Gasket
 $13.62

Part Number:951-11374

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $13.62
Ships in 4 - 9 business days
 $13.62
13
Dowel Pin 9 X 12
 $5.18

Part Number:715-04102

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11328, Shortblock Assembly
 $5.18
Ships in 4 - 9 business days
 $5.18
14
Dowel Pin 9 X 14
 $3.58

Part Number:715-04096A

In Stock, 1 available

In Stock, 1 available
 $3.58
In Stock, 1 available
 $3.58
15
Radial Ball Bearing 6202-P6
 $36.23

Part Number:951-11373

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11341, Crankcase Kit
 $36.23
Ships in 4 - 9 business days
 $36.23
22
Ignition Coil Assembly
 $72.08

Part Number:951-11197A

Backorder: No ETA

Backorder: No ETA
 $72.08
Backorder: No ETA
23
Bolt M6X28
 $5.58

Part Number:710-04931

Backorder: No ETA

Backorder: No ETA

Note: Furnish 951-10950a, Short Block Assembly
 $5.58
Backorder: No ETA
24
Stator Obsolete - Not Available
 $62.37

Part Number:951-11216

Discontinued

Discontinued
 $62.37
Discontinued
26
Flywheel
 $164.37

Part Number:951-11214

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $164.37
Ships in 4 - 9 business days
 $164.37
27
Fan,Cooling
 $48.68

Part Number:951-11217

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $48.68
Ships in 4 - 9 business days
 $48.68
29
Nut,Special M16x1.5
 $5.46

Part Number:712-04220

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.46
Ships in 4 - 9 business days
 $5.46
31
Recoil Starter
 $87.57

Part Number:951-11208

In Stock, 1 available

In Stock, 1 available
 $87.57
In Stock, 1 available
 $87.57
32
Oil Drain Plug Washer
 $5.87

Part Number:736-04440

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Also Available in Kit Below
 $5.87
Ships in 4 - 9 business days
 $5.87
34
Key Switch
 $12.99

Part Number:951-10637

In Stock, 1 available

In Stock, 1 available

Note: (Not Shown)
 $12.99
In Stock, 1 available
 $12.99
35
Choke Knob
 $5.81

Part Number:951-11302

In Stock, 2 available

In Stock, 2 available
 $5.81
In Stock, 2 available
 $5.81
35
Choke Knob
 $5.81

Part Number:951-11302

In Stock, 2 available

In Stock, 2 available
 $5.81
In Stock, 2 available
 $5.81
36
Cylinder Baffle
 $23.97

Part Number:951-11180

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $23.97
Ships in 4 - 9 business days
 $23.97
37
Bolt M6x10
 $5.94

Part Number:710-04974

In Stock, 5 available

In Stock, 5 available
 $5.94
In Stock, 5 available
 $5.94
39
Push Rod Kit
 $12.82

Part Number:951-11199

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $12.82
Ships in 4 - 9 business days
 $12.82
40
Dowel Pin 12x20
 $5.22

Part Number:715-04097

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11328, Shortblock Assembly
 $5.22
Ships in 4 - 9 business days
 $5.22
45
Spark Plug
 $7.17

Part Number:951-10292A

In Stock, 25+ available

In Stock, 25+ available
 $7.17
In Stock, 25+ available
 $7.17
46
Exhaust Pipe Gasket
 $4.70

Part Number:951-11212A

In Stock, 1 available

In Stock, 1 available

Note: Furnish 951-11331, External Gasket Kit
 $4.70
In Stock, 1 available
 $4.70
47
Stud M8x48.5
 $5.35

Part Number:710-04964

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11329, Cylinder Head Assembly
 $5.35
Ships in 4 - 9 business days
 $5.35
48
Bolt M4x55
 $5.64

Part Number:710-04965

Backorder: No ETA

Backorder: No ETA

Note: Furnish 951-11226, Cylinder Head Kit
 $5.64
Backorder: No ETA
50
Bolt, Pivot
 $5.39

Part Number:710-04962

In Stock, 2 available

In Stock, 2 available

Note: Furnish 951-11329, Cylinder Head Assembly
 $5.39
In Stock, 2 available
 $5.39
52
Valve Adjusting Nut
 $8.88

Part Number:751-11123

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Also Available in Kit Below
 $8.88
Ships in 4 - 9 business days
 $8.88
53
Jam Nut
 $8.00

Part Number:751-11124

Backorder: No ETA

Backorder: No ETA

Note: Also Available in Kit Below
 $8.00
Backorder: No ETA
61
Valve Cover
 $30.36

Part Number:951-11220

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11333, Valve Cover Kit
 $30.36
Ships in 4 - 9 business days
 $30.36
63
Stud M6-8 X 106
 $5.94

Part Number:710-04963

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11188, Cylinder Head Assembly
 $5.94
Ships in 4 - 9 business days
 $5.94
64
Carburetor Insulator Gasket
 $4.01

Part Number:951-11225

In Stock, 4 available

In Stock, 4 available

Note: Furnish 951-11210, Gasket Kit External
 $4.01
In Stock, 4 available
 $4.01
66
Carburetor Gasket
 $4.50

Part Number:951-11223

In Stock, 3 available

In Stock, 3 available

Note: Furnish 951-11331, External Gasket Kit
 $4.50
In Stock, 3 available
 $4.50
67
Carburetor Assembly
 $97.18

Part Number:951-14024A

In Stock, 11 available

In Stock, 11 available

Note: (Incl. Ref No. 126-132, 136-149)
 $97.18
In Stock, 11 available
 $97.18
67
Carburetor Assembly
 $97.18

Part Number:951-14024A

In Stock, 11 available

In Stock, 11 available

Note: (Incl. Ref No. 126-132, 136-149) - Incl. Ref No. 126-132, 136-149
 $97.18
In Stock, 11 available
 $97.18
73
Electric Starter
 $349.84

Part Number:951-11196

In Stock, 1 available

In Stock, 1 available
 $349.84
In Stock, 1 available
 $349.84
74
Bolt M8x55
 $5.87

Part Number:710-04967

Backorder: No ETA

Backorder: No ETA
 $5.87
Backorder: No ETA
75
Bolt M4x55
 $5.64

Part Number:710-04965

Backorder: No ETA

Backorder: No ETA

Note: Furnish 951-11226, Cylinder Head Kit
 $5.64
Backorder: No ETA
76
Primer Bracket
 $39.07

Part Number:951-11213

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $39.07
Ships in 4 - 9 business days
 $39.07
77
Governor Arm Bolt
 $5.52

Part Number:710-04908

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.52
Ships in 4 - 9 business days
 $5.52
78
Nut
 $5.65

Part Number:712-05015

In Stock, 3 available

In Stock, 3 available

Note: Without a Numeric Call-Out in Image
 $5.65
In Stock, 3 available
 $5.65
79
Governor Arm
 $20.48

Part Number:951-14200

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $20.48
Ships in 4 - 9 business days
 $20.48
80
Governor Spring
 $3.66

Part Number:951-11202

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $3.66
Ships in 4 - 9 business days
 $3.66
81
Throttle Return Spring
 $3.77

Part Number:951-11203

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $3.77
Ships in 4 - 9 business days
 $3.77
82
Throttle Linkage
 $3.36

Part Number:951-11204

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $3.36
Ships in 4 - 9 business days
 $3.36
83
Muffler Assembly
 $111.89

Part Number:951-11195

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $111.89
Ships in 4 - 9 business days
 $111.89
84
Brake Arm Nut
 $5.22

Part Number:712-04219

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.22
Ships in 4 - 9 business days
 $5.22
85
Muffler Baffle
 $26.53

Part Number:951-11181

In Stock, 1 available

In Stock, 1 available
 $26.53
In Stock, 1 available
 $26.53
86
Flange Bolt
 $3.63

Part Number:710-04914

In Stock, 1 available

In Stock, 1 available
 $3.63
In Stock, 1 available
 $3.63
87
Muffler Shield
 $48.80

Part Number:951-11194

In Stock, 1 available

In Stock, 1 available
 $48.80
In Stock, 1 available
 $48.80
88
Cotter Pin
 $5.18

Part Number:714-04077

Backorder: No ETA

Backorder: No ETA

Note: Furnish 951-11328, Shortblock Assembly
 $5.18
Backorder: No ETA
89
Washer 8 X 20 X 0.8
 $5.22

Part Number:736-04453

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11328, Shortblock Assembly
 $5.22
Ships in 4 - 9 business days
 $5.22
90
Control Panel
 $46.78

Part Number:951-11594

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $46.78
Ships in 4 - 9 business days
 $46.78
91
Heater Box
 $19.85

Part Number:951-11190

In Stock, 1 available

In Stock, 1 available
 $19.85
In Stock, 1 available
 $19.85
92
Breather Hose Obsolete - Not Available
 $5.72

Part Number:951-11221

Discontinued

Discontinued
 $5.72
Discontinued
93
Choke Control
 $7.78

Part Number:951-11192

Backorder: No ETA

Backorder: No ETA
 $7.78
Backorder: No ETA
95
Fuel Tank Assembly
 $124.07

Part Number:951-11201

In Stock, 1 available

In Stock, 1 available
 $124.07
In Stock, 1 available
 $124.07
96
Fuel Tank Mounting Bracket
 $37.23

Part Number:951-11182

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $37.23
Ships in 4 - 9 business days
 $37.23
97
Fuel Tank Mounting Bracket
 $41.97

Part Number:951-11183

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $41.97
Ships in 4 - 9 business days
 $41.97
98
Fuel Tank Shroud
 $21.86

Part Number:951-11184

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $21.86
Ships in 4 - 9 business days
 $21.86
99
Engine Shroud
 $20.48

Part Number:951-11419

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $20.48
Ships in 4 - 9 business days
 $20.48
100
Fuel Tank Cap
 $20.34

Part Number:951-12533

In Stock, 25+ available

In Stock, 25+ available
 $20.34
In Stock, 25+ available
 $20.34
101
Fuel Filter Obsolete - Not Available
 $5.26

Part Number:951-10652B

Discontinued

Discontinued
 $5.26
Discontinued
103
Flat Washer
 $5.33

Part Number:736-04451

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.33
Ships in 4 - 9 business days
 $5.33
105
Flat Washer
 $5.53

Part Number:736-04450

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.53
Ships in 4 - 9 business days
 $5.53
108
Flange Bolt
 $2.99

Part Number:710-11012

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $2.99
Ships in 4 - 9 business days
 $2.99
109
Bush
 $5.54

Part Number:736-04452

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.54
Ships in 4 - 9 business days
 $5.54
110
Rubber Shock Pad
 $3.45

Part Number:750-05314

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $3.45
Ships in 4 - 9 business days
 $3.45
113
Heat Shield
 $26.96

Part Number:951-11227

In Stock, 1 available

In Stock, 1 available
 $26.96
In Stock, 1 available
 $26.96
114
Throttle Control Knob
 $6.74

Part Number:951-11224

In Stock, 3 available

In Stock, 3 available
 $6.74
In Stock, 3 available
 $6.74
115
Flange Bolt
 $4.64

Part Number:710-04921

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $4.64
Ships in 4 - 9 business days
 $4.64
116
Dipstick Clamp
 $6.63

Part Number:951-11320

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $6.63
Ships in 4 - 9 business days
 $6.63
117
Alternator Wire Clamp Brkt
 $4.67

Part Number:951-11186

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $4.67
Ships in 4 - 9 business days
 $4.67
118
Bolt M845
 $5.35

Part Number:710-06062

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.35
Ships in 4 - 9 business days
 $5.35
119
Bolt M6x8
 $5.18

Part Number:710-04966

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.18
Ships in 4 - 9 business days
 $5.18
121
Bolt
 $3.77

Part Number:710-04916

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-10414b, Short Block Assembly
 $3.77
Ships in 4 - 9 business days
 $3.77
122
Nut
 $5.65

Part Number:712-05015

In Stock, 3 available

In Stock, 3 available

Note: Without a Numeric Call-Out in Image
 $5.65
In Stock, 3 available
 $5.65
123
Flywheel Key
 $2.99

Part Number:751P10307A

In Stock, 14 available

In Stock, 14 available

Note: Also Available in Kit Below
 $2.99
In Stock, 14 available
 $2.99
124
Washer-Flat
 $5.81

Part Number:736-04455B

In Stock, 2 available

In Stock, 2 available
 $5.81
In Stock, 2 available
 $5.81
125
Hose Clamp
 $3.74

Part Number:726-04101

Backorder: No ETA

Backorder: No ETA
 $3.74
Backorder: No ETA
126
Primer
 $15.25

Part Number:951-10639A

In Stock, 16 available

In Stock, 16 available

Note: Furnish 951-12011, Carburetor Assy
 $15.25
In Stock, 16 available
 $15.25
132
Fuel Drain Plug Gasket
 $3.58

Part Number:951-11349A

In Stock, 25+ available

In Stock, 25+ available

Note: Furnish 951-11773, Carburetor Kit Major
 $3.58
In Stock, 25+ available
 $3.58
133
Recoil Starter Handle
 $14.35

Part Number:731-05696

In Stock, 1 available

In Stock, 1 available
 $14.35
In Stock, 1 available
 $14.35
134
Bolt M835
 $5.33

Part Number:710-06063

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Furnish 951-11328, Shortblock Assembly
 $5.33
Ships in 4 - 9 business days
 $5.33
135
Lock Washer
 $5.18

Part Number:736-04477

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $5.18
Ships in 4 - 9 business days
 $5.18
137
Fuel Bowl Gasket
 $5.58

Part Number:951-11348

In Stock, 3 available

In Stock, 3 available

Note: Furnish 951-11773, Carburetor Kit Major
 $5.58
In Stock, 3 available
 $5.58
138
Fuel Bowl Mounting Bolt
 $3.58

Part Number:710-04945

In Stock, 5 available

In Stock, 5 available

Note: Furnish 951-12011, Carburetor Assy
 $3.58
In Stock, 5 available
 $3.58
139
Fuel Drain Plug
 $3.58

Part Number:710-04938

In Stock, 17 available

In Stock, 17 available

Note: Furnish 951-12011, Carburetor Assy
 $3.58
In Stock, 17 available
 $3.58
800
Key
 $5.94

Part Number:951-10630

In Stock, 25+ available

In Stock, 25+ available

Note: (Not Shown)
 $5.94
In Stock, 25+ available
 $5.94
801
Oil Drain Assembly
 $11.10

Part Number:951-10641

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl.97-99) - Incl. Ref No. 17, 19, 32
 $11.10
Ships in 4 - 9 business days
 $11.10
802
Nipple Fuel Tank
 $13.65

Part Number:951-10651

In Stock, 25+ available

In Stock, 25+ available
 $13.65
In Stock, 25+ available
 $13.65
804
Cylinder Head Ass'Y
 $290.96

Part Number:951-11188

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl.101,102,105,107,109-122,124,129-132) - Incl. Ref No. 41-44, 46-60, 63-65
 $290.96
Ships in 4 - 9 business days
 $290.96
805
Valve Kit
 $43.71

Part Number:951-11198

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: Incl. Ref No. 41-42
 $43.71
Ships in 4 - 9 business days
 $43.71
806
Fue Line Kit
 $28.70

Part Number:951-11200

In Stock, 1 available

In Stock, 1 available

Note: Incl. Ref No. 111-112
 $28.70
In Stock, 1 available
 $28.70
807
Muffler Stud Assembly
 $7.52

Part Number:951-11207

In Stock, 1 available

In Stock, 1 available

Note: (Incl. Ref. No. 115) - Incl. Ref No. 47
 $7.52
In Stock, 1 available
 $7.52
808
Gasket Kit - Complete
 $62.19

Part Number:951-11209

Backorder: No ETA

Backorder: No ETA

Note: (Incl. 52,59,65,79,81,107,109,124,130-132) - Incl. Ref No. 8, 11,32, 43, 46, 06, 64-66, 120
 $62.19
Backorder: No ETA
809
Gasket Kit - External
 $27.61

Part Number:951-11210

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl. 79,109,124,130-132) - Incl. Ref No. 11, 32,60, 64-66
 $27.61
Ships in 4 - 9 business days
 $27.61
810
Carburetor Kit
 $46.69

Part Number:951-12762A

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl. I,J,P,Q,R,S,T,U,V,X,Z) - Incl. Ref No. 127-132, 136, 149
 $46.69
Ships in 4 - 9 business days
 $46.69
811
Cylinder Head Kit
 $34.05

Part Number:951-11226

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl.107,111,112,125) - Incl. Ref No. 43, 48, 54, 60
 $34.05
Ships in 4 - 9 business days
 $34.05
812
Crankcase Cover Kit
 $113.93

Part Number:951-11228

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl. 49,59,50,64-68) - Incl. Ref No. 1, 8911, 15, 118
 $113.93
Ships in 4 - 9 business days
 $113.93
813
Crankshaft Kit
 $198.91

Part Number:951-11229

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl. 49,54,55,65,81) - Incl. Ref No. 8, 15, 16, 123
 $198.91
Ships in 4 - 9 business days
 $198.91
814
Crankcase Kit
 $314.55

Part Number:951-11230

Ships in 4 - 9 business days

Ships in 4 - 9 business days

Note: (Incl. 49,52,77,81) - Incl. Ref No. 8, 15, 20, 120
 $314.55
Ships in 4 - 9 business days
 $314.55
815
Complete Engine
 $1,268.76

Part Number:952Z678-SUA

Ships in 4 - 9 business days

Ships in 4 - 9 business days
 $1,268.76
Ships in 4 - 9 business days
 $1,268.76
 Fig #
Engine Parts
Repair Guides
How to Replace the Fuel Filters in Your Outdoor Power Equipment

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

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.

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.

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.

Accessories
Accessories for the MTD 478-SU

Questions & Answers

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Fixing things makes sense...

...And we make it easy! With our Fix app, you always have a personalized repair guide on-hand. Easily find manuals and replacement parts on your phone while you’re DIYing in the garage or garden.

"Love the flexibility of the app to add everything in the home and garage. Access to manuals and parts right there makes it convenient."

Available on the App Store Get it on Google Play
eReplacementParts.com
7036 South High Tech Dr.
Midvale, UT 84047
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