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  Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Parts
Troy-Bilt 4HP-21" Single (ADJ.) Speed S.P. Mower Replacement For Model 34021

Troy-Bilt 4HP-21" Single (ADJ.) Speed S.P. Mower Replacement Parts For Model 34021

We Sell Only Genuine Troy-Bilt Parts

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Showing All Parts
Page A
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page A Diagram
 Fig #
A1
Handle- Height Adj. Obsolete - Not Available
 $6.99

Part Number:1754149

Discontinued

Discontinued
 $6.99
Discontinued
A2
Spacer-handle
 $3.99

Part Number:1762886

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
A3
Washer
 $3.99

Part Number:GW-20546

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
A4
Scr-handle Adjust
 $3.99

Part Number:1764815

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
A5
Pivot-adjust Scr
 $7.85

Part Number:1902765

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.85
Usually ships in 7 - 12 business days
 $7.85
A6
Pin-drive
 $3.99

Part Number:1120210

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
A7
Axle-rear E-coated
 $75.06

Part Number:1768578

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $75.06
Usually ships in 7 - 12 business days
 $75.06
A8
Link-height Adjust
 $6.43

Part Number:1764818001

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.43
Usually ships in 7 - 12 business days
 $6.43
A9
Decal-indicator
 $3.99

Part Number:1767792

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
A10
Bearing-nyliner
 $3.99

Part Number:1768962

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
A11
Clip-rod Lh B
 $8.42

Part Number:1765551

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.42
Usually ships in 7 - 12 business days
 $8.42
A12
Clip-rod Rh A
 $11.00

Part Number:1765550

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $11.00
Usually ships in 7 - 12 business days
 $11.00
A13
Bearing-axle Arm R
 $6.13

Part Number:1766500

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.13
Usually ships in 7 - 12 business days
 $6.13
A14
Hex Bolt 5/16-18 X .1in. Lg. (
 $3.99

Part Number:710-0376

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
 $3.99
In Stock
 $3.99
A15
Arm-axle W/bushing
 $54.37

Part Number:1902280

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $54.37
Usually ships in 7 - 12 business days
 $54.37
A16
Arm-axle W/bushing
 $33.26

Part Number:1902281

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $33.26
Usually ships in 7 - 12 business days
 $33.26
A17
Washer-.78x.25x.08
 $3.99

Part Number:1765591

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
A18
Washer-.5x.25x.06
 $3.99

Part Number:1767439

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
A19
Scr-hxskt 1/4-20x.
 $3.99

Part Number:1769064

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Apply A Coating Of Thread Locking Compound Such As Loctite 242 Before Installing Part. Before Ordering Replacement Parts, Check For Updated Drive Control Assembly Components As Shown On Grid D-1.
 $3.99
Usually ships in 7 - 12 business days
 $3.99
A20
Kit- Whl Idle 8 X
 $44.60

Part Number:753-08091

In Stock

In Stock
 $44.60
In Stock
 $44.60
A21
Screw-shldr Mod. Rad
 $6.23

Part Number:1903416

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.23
Usually ships in 7 - 12 business days
 $6.23
A22
Bearing-axle Arm Fr
 $4.99

Part Number:1764817

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
A24
Washer Shim .030 H
 $5.96

Part Number:1902283

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $5.96
Usually ships in 7 - 12 business days
 $5.96
A24
Washer Shim .015 H
 $10.97

Part Number:1902284

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $10.97
Usually ships in 7 - 12 business days
 $10.97
A25
Shield-wheel 34361
 $16.33

Part Number:1917083

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $16.33
Usually ships in 7 - 12 business days
 $16.33
A26
Pinion-drive
 $10.97

Part Number:1764570099

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $10.97
Usually ships in 7 - 12 business days
 $10.97
A27
Wheel Asm-rear Dr Obsolete - Not Available
 $34.93

Part Number:1765750

Discontinued

Discontinued
 $34.93
Discontinued
A28
Axle-front E-coated
 $17.14

Part Number:1768579

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $17.14
Usually ships in 7 - 12 business days
 $17.14
A28
Axle-drive Round N
 $80.74

Part Number:1909402

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $80.74
Usually ships in 7 - 12 business days
 $80.74
A29
Washer-flat .88x.4
 $3.99

Part Number:1909311

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
A30
Washer-1.468 X 1.0
 $3.99

Part Number:1185816

In Stock

In Stock
 $3.99
In Stock
 $3.99
A31
Washer-rubber
 $3.99

Part Number:1708850

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
A32
Washer-thrust .92x
 $9.74

Part Number:1983638

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.74
Usually ships in 7 - 12 business days
 $9.74
Page B
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page B class=
 Fig #
B1
Plug-cap
 $3.99

Part Number:1915001

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
B2
Nut-h/lk 1/2-20
 $3.99

Part Number:1765749

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
B3
Nut-hex 1/2-20 X .
 $21.91

Part Number:1909875

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $21.91
Usually ships in 7 - 12 business days
 $21.91
B4
Assm-sheave W/bear
 $92.69

Part Number:1903414

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $92.69
Usually ships in 7 - 12 business days
 $92.69
B5
Ring-bowed Ext .66
 $3.99

Part Number:1909985

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
B6
Spring-compression
 $3.99

Part Number:1909998

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
B7
WASHER-1.0X.632X.03 ZP Obsolete - Not Available
 $16.59

Part Number:94003

Discontinued

Discontinued
 $16.59
Discontinued
B8
Washer-.605x1.102x
 $5.52

Part Number:1909984

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $5.52
Usually ships in 7 - 12 business days
 $5.52
B9
Plate-ramp Upper
 $6.99

Part Number:1903745

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.99
Usually ships in 7 - 12 business days
 $6.99
B10
Plate-ramp Lower
 $13.78

Part Number:1903746

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $13.78
Usually ships in 7 - 12 business days
 $13.78
B11
Arm-control
 $28.57

Part Number:1909977

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $28.57
Usually ships in 7 - 12 business days
 $28.57
B12
Sleeve-adjust
 $13.55

Part Number:1909868

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $13.55
Usually ships in 7 - 12 business days
 $13.55
B13
Plate-anchor Plate
 $39.89

Part Number:1909870

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $39.89
Usually ships in 7 - 12 business days
 $39.89
B14
Assm-carrier W/stu
 $70.76

Part Number:1904119

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $70.76
Usually ships in 7 - 12 business days
 $70.76
B15
Screw-torx Hd
 $3.99

Part Number:1909983

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
B16
Clip-brg Retain Bl
 $5.62

Part Number:1909889

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $5.62
Usually ships in 7 - 12 business days
 $5.62
B17
Bearing-carrier
 $14.64

Part Number:1903744

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $14.64
Usually ships in 7 - 12 business days
 $14.64
B18
Use 1767754
 $4.99

Part Number:710-04460

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
B19
Clamp-housing
 $3.99

Part Number:1715127

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
B20
Disc-drive/frictio
 $84.06

Part Number:1909975

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $84.06
Usually ships in 7 - 12 business days
 $84.06
B21
Screw-set Sq 1/4-20
 $3.99

Part Number:1903631

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
B22
Axle-drive Round N
 $80.74

Part Number:1909402

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $80.74
Usually ships in 7 - 12 business days
 $80.74
B23
Key-woodruff #3-1/
 $4.99

Part Number:914-0112

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
B24
Cable-drive Contro
 $38.96

Part Number:1909996P

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $38.96
Usually ships in 7 - 12 business days
 $38.96
B25
Pin:cot:int
 $7.70

Part Number:714-04048

In Stock

In Stock
 $7.70
In Stock
 $7.70
B26
Brkt-spring Mount
 $8.31

Part Number:1909900

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.31
Usually ships in 7 - 12 business days
 $8.31
B27
Spring - Speed Control Obsolete - Not Available
 $4.99

Part Number:1909848

Discontinued

Discontinued
 $4.99
Discontinued
B28
CABLE-SINGLE SPD CONTROL Obsolete - Not Available
 $12.61

Part Number:1909999

Discontinued

Discontinued
 $12.61
Discontinued
B29
Pin-speed Control
 $3.99

Part Number:1915000

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
B30
Assm - Arm Control Obsolete - Not Available
 $55.40

Part Number:1909980

Discontinued

Discontinued
 $55.40
Discontinued
B31
Screw-flange
 $3.99

Part Number:1754128

In Stock

In Stock
 $3.99
In Stock
 $3.99
B32
Rod-belt Adjust
 $12.71

Part Number:1909973

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $12.71
Usually ships in 7 - 12 business days
 $12.71
B35
Sleeve-belt
 $4.99

Part Number:1909945

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
B36
Rod-anchor
 $12.12

Part Number:1902339

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $12.12
Usually ships in 7 - 12 business days
 $12.12
B37
Belt-v Ngmm
 $18.25

Part Number:1909946

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Some Models Have A V-Blet -- Use Cogged Belt For Replacement.
 $18.25
Usually ships in 7 - 12 business days
 $18.25
Page C
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page C class=
 Fig #
C1
Assm-t/b Mulch Deck
 $282.93

Part Number:1903386

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $282.93
Usually ships in 7 - 12 business days
 $282.93
C2
Flap-safety With Not
 $55.21

Part Number:1902656

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $55.21
Usually ships in 7 - 12 business days
 $55.21
C3
Rod-flap
 $9.07

Part Number:1765553

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.07
Usually ships in 7 - 12 business days
 $9.07
C4
Ring-e5/16
 $3.99

Part Number:1185304

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
C5
Cover-w/decal Fron
 $73.33

Part Number:1904122

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $73.33
Usually ships in 7 - 12 business days
 $73.33
C6
COVER-REAR W/DECAL T/B Obsolete - Not Available
 $26.30

Part Number:1768952

Discontinued

Discontinued
 $26.30
Discontinued
C7
Scr-Ph M12-24X.63 Thfrm Zp Obsolete - Not Available
 $2.99

Part Number:1766503

Discontinued

Discontinued
 $2.99
Discontinued
C8
Door - Discharge w/Tab Obsolete - Not Available
 $54.36

Part Number:1902112

Discontinued

Discontinued
 $54.36
Discontinued
C9
Handle Bracket Assembly - RH Obsolete - Not Available
 $2.99

Part Number:1903734

Discontinued

Discontinued
 $2.99
Discontinued
C10
Nut-hex Ins Jam
 $4.99

Part Number:912-0273

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transaxle Complete.
 $4.99
Usually ships in 7 - 12 business days
 $4.99
C11
DECAL-DANGER USE GUARD Obsolete - Not Available
 $2.99

Part Number:1768434

Discontinued

Discontinued
 $2.99
Discontinued
C12
Decal-opei Caution
 $7.01

Part Number:1739687

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.01
Usually ships in 7 - 12 business days
 $7.01
C13
DECAL-CUTTING HEIGHT Obsolete - Not Available
 $2.99

Part Number:1765893

Discontinued

Discontinued
 $2.99
Discontinued
C14
Decal-warning Thrown
 $3.99

Part Number:1768436

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
C15
Decal-caution Pinc
 $3.99

Part Number:1768435

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
C18
Stop-starter Rope
 $3.99

Part Number:1746425

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
C19
SHIELD-HEAT PNT {NOT 34311, 34313} Obsolete - Not Available
 $48.29

Part Number:1766513001

Discontinued

Discontinued
 $48.29
Discontinued
C20
SCR-SELF TAP Obsolete - Not Available
 $9.59

Part Number:90002

Discontinued

Discontinued
 $9.59
Discontinued
C21
Screw Hh 3/8-16x1.25
 $3.99

Part Number:1767610

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
C22
Blade-21mulching
 $45.31

Part Number:1764381

In Stock

In Stock
 $45.31
In Stock
 $45.31
C22
Blade-21mulching
 $45.31

Part Number:1764381

In Stock

In Stock
 $45.31
In Stock
 $45.31
C22
KIT-BLADE 21" BBC MULCH MOWER {34311,34313} Obsolete - Not Available
 $2.99

Part Number:1768307

Discontinued

Discontinued
 $2.99
Discontinued
C22
Blade-mulcher 21
 $27.87

Part Number:942-04040

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $27.87
Usually ships in 7 - 12 business days
 $27.87
C23
Screw-hex 3/8-16 X
 $4.99

Part Number:710-0514

In Stock

In Stock

Note: (Optional)
 $4.99
In Stock
 $4.99
C23
SCR-HH M10X1.5X30MM {34311,34313} Obsolete - Not Available
 $2.99

Part Number:1767588

Discontinued

Discontinued
 $2.99
Discontinued
C24
Lock Washer .50
 $4.99

Part Number:736-0921

In Stock

In Stock
 $4.99
In Stock
 $4.99
C25
SCR-SHLDR 3/8-24X1.63 {NOT 34311,34313} Obsolete - Not Available
 $3.11

Part Number:1746688

Discontinued

Discontinued
 $3.11
Discontinued
C26
WASHER-LK M10.2 {34311,34313} Obsolete - Not Available
 $2.99

Part Number:1767589

Discontinued

Discontinued
 $2.99
Discontinued
C27
Key-woodruff
 $3.99

Part Number:1185885

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
C28
Coupling-blade
 $29.79

Part Number:1766541

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $29.79
Usually ships in 7 - 12 business days
 $29.79
C29
Use 912-3000
 $4.99

Part Number:712-3000

In Stock

In Stock
 $4.99
In Stock
 $4.99
C30
SHEAVE-ENGINE {NOT 34020,34311,34313} Obsolete - Not Available
 $20.23

Part Number:1766546

Discontinued

Discontinued
 $20.23
Discontinued
C30
SHEAVE-ENGINE {34311,34313} Obsolete - Not Available
 $14.44

Part Number:1766547

Discontinued

Discontinued
 $14.44
Discontinued
C31
Screw-set Sq Hd 1/4-
 $3.99

Part Number:1738845

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
C32
SCR-SET 1/4-20 {34311,34313} Obsolete - Not Available
 $2.99

Part Number:1187876

Discontinued

Discontinued
 $2.99
Discontinued
C33
Washer-fl
 $4.99

Part Number:736-3050

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
C34
BRKT-LOCATING ZP {34311,34313} Obsolete - Not Available
 $7.94

Part Number:1767608

Discontinued

Discontinued
 $7.94
Discontinued
C35
Clutch-type 6 Bbc
 $261.70

Part Number:1904230P

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $261.70
Usually ships in 7 - 12 business days
 $261.70
C36
Use 1767754
 $4.99

Part Number:710-04460

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
C37
WASHER-M12 {34311,34313} Obsolete - Not Available
 $2.99

Part Number:1767658

Discontinued

Discontinued
 $2.99
Discontinued
C38
Spring-extension
 $3.99

Part Number:1765886

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
C40
Screw-shldr 5/16-18x
 $4.99

Part Number:1768538

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
C41
Switch-ignition Gr
 $42.20

Part Number:1768443

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $42.20
Usually ships in 7 - 12 business days
 $42.20
C42
TAB-SWITCH Obsolete - Not Available
 $4.99

Part Number:1764197

Discontinued

Discontinued
 $4.99
Discontinued
C44
SCR-HH 10-24X.25 THRD FRM Obsolete - Not Available
 $2.99

Part Number:1902137

Discontinued

Discontinued
 $2.99
Discontinued
C46
DECAL-LOGO MULCHER T/B Obsolete - Not Available
 $4.99

Part Number:1768958

Discontinued

Discontinued
 $4.99
Discontinued
C47
DECAL-WARNING SAFETY LIST Obsolete - Not Available
 $2.99

Part Number:1768743

Discontinued

Discontinued
 $2.99
Discontinued
C48
Clip-special
 $3.99

Part Number:GW-9218

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Gw-9218
 $3.99
Usually ships in 7 - 12 business days
 $3.99
C
Hub Cap Obsolete - Not Available
 $4.99

Part Number:1903391

Discontinued

Discontinued

Note: Later Production Units Only.
 $4.99
Discontinued
C
Wheel Dust Cap Obsolete - Not Available
 $2.99

Part Number:1902758

Discontinued

Discontinued
 $2.99
Discontinued
C
Input Pulley Obsolete - Not Available
 $2.99

Part Number:1902759

Discontinued

Discontinued
 $2.99
Discontinued
C
Paint-mtd Red
 $23.04

Part Number:788-0638A

In Stock

In Stock
 $23.04
In Stock
 $23.04
C
Paint-powder Black
 $29.42

Part Number:788-0637A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $29.42
Usually ships in 7 - 12 business days
 $29.42
Page D
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page D class=
 Fig #
D1
Axle-drive Round N
 $80.74

Part Number:1909402

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $80.74
Usually ships in 7 - 12 business days
 $80.74
D2
Key-woodruff #3-1/
 $4.99

Part Number:914-0112

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
Page E
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page E class=
 Fig #
E1
Handlebar-lower Obsolete - Not Available
 $103.06

Part Number:1902638001

Discontinued

Discontinued
 $103.06
Discontinued
E1
Handlebar-lower Obsolete - Not Available
 $103.06

Part Number:1902638001

Discontinued

Discontinued
 $103.06
Discontinued
E2
Handlebar-upper Pa
 $36.50

Part Number:1767435001

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $36.50
Usually ships in 7 - 12 business days
 $36.50
E3
Bail-control 34344
 $13.93

Part Number:1766584001

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $13.93
Usually ships in 7 - 12 business days
 $13.93
E4
Quadrant-outer Obsolete - Not Available
 $8.73

Part Number:1903404099

Discontinued

Discontinued
 $8.73
Discontinued
E5
Kit-quadrant Inner
 $23.79

Part Number:1903417

In Stock

In Stock
 $23.79
In Stock
 $23.79
E6
Knob-handle Adjust
 $6.95

Part Number:1767400

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.95
Usually ships in 7 - 12 business days
 $6.95
E7
Curved Hd. Screw-5/16-18x2-1/2
 $6.86

Part Number:710-1174

In Stock

In Stock

Note: 500 & 600 Series
 $6.86
In Stock
 $6.86
E8
Retainer
 $8.16

Part Number:1765879

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.16
Usually ships in 7 - 12 business days
 $8.16
E9
Screw-flange
 $3.99

Part Number:1754128

In Stock

In Stock
 $3.99
In Stock
 $3.99
E10
Bracket-cable
 $72.39

Part Number:1749977001

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $72.39
Usually ships in 7 - 12 business days
 $72.39
E11
PIN-LK SQ. #W51620LP Obsolete - Not Available
 $5.41

Part Number:1900383

Discontinued

Discontinued
 $5.41
Discontinued
E11
PIN-STOP Obsolete - Not Available
 $5.41

Part Number:1766534

Discontinued

Discontinued
 $5.41
Discontinued
E12
Spring-compression
 $3.99

Part Number:1766531

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
E14
Arm-stop Zp Black
 $3.99

Part Number:1766532

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
E15
Handle Knob
 $4.99

Part Number:720-0279

In Stock

In Stock

Note: New Part
 $4.99
In Stock
 $4.99
E16
Pin-clevis 5/16 Di
 $6.55

Part Number:911-0813

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.55
Usually ships in 7 - 12 business days
 $6.55
E17
Push Cap .312
 $3.99

Part Number:1908679

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
E18
DECAL-ENGINE SPEED Obsolete - Not Available
 $2.99

Part Number:1768319

Discontinued

Discontinued
 $2.99
Discontinued
E19
Guide-rope
 $8.19

Part Number:1768535

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.19
Usually ships in 7 - 12 business days
 $8.19
E20
Cap Plastic (bail)
 $3.99

Part Number:1908678

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
E21
Grip Ring .312 Id
 $3.99

Part Number:1908673

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
E22
Bushing-plastic
 $3.99

Part Number:1908677

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
E23
CABLE-ENGINE BRAKE Obsolete - Not Available
 $24.15

Part Number:1765935

Discontinued

Discontinued
 $24.15
Discontinued
E24
Control-throttle
 $34.71

Part Number:1767639

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $34.71
Usually ships in 7 - 12 business days
 $34.71
E25
Screw-hh
 $3.99

Part Number:1111601

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
E26
CONTROL-CLUTCH {34021} Obsolete - Not Available
 $35.33

Part Number:1767614

Discontinued

Discontinued
 $35.33
Discontinued
E27
Use 912-0291
 $4.99

Part Number:712-0291

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional)
 $4.99
Usually ships in 7 - 12 business days
 $4.99
E28
Knob
 $7.78

Part Number:GW-9057

In Stock

In Stock
 $7.78
In Stock
 $7.78
E29
Tie-cable 7
 $3.99

Part Number:725-0157

In Stock

In Stock

Note: (W/ Heated Grips)
 $3.99
In Stock
 $3.99
E30
DECAL-WHEEL DRIVE {34321,34321C} Obsolete - Not Available
 $3.44

Part Number:1768320

Discontinued

Discontinued
 $3.44
Discontinued
E
Paint-mtd Red
 $23.04

Part Number:788-0638A

In Stock

In Stock
 $23.04
In Stock
 $23.04
E
Paint-powder Black
 $29.42

Part Number:788-0637A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $29.42
Usually ships in 7 - 12 business days
 $29.42
Page F
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page F class=
 Fig #
F1
Sprt - Control Drive Obsolete - Not Available
 $47.68

Part Number:1909995

Discontinued

Discontinued
 $47.68
Discontinued
F2
Arm - Control Obsolete - Not Available
 $13.18

Part Number:1915005

Discontinued

Discontinued
 $13.18
Discontinued
F3
Spring-extension
 $11.76

Part Number:1915922

In Stock

In Stock
 $11.76
In Stock
 $11.76
F4
Guide-rope
 $8.19

Part Number:1768535

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.19
Usually ships in 7 - 12 business days
 $8.19
F5
Mount - Drive Control Obsolete - Not Available
 $15.96

Part Number:1909683001

Discontinued

Discontinued
 $15.96
Discontinued
F6
Lock Washer, 3/8 Obsolete - Not Available
 $2.99

Part Number:GW-90006

Discontinued

Discontinued
 $2.99
Discontinued
F7
SCR-RH 1/4-20X.75 Obsolete - Not Available
 $2.99

Part Number:1765593

Discontinued

Discontinued
 $2.99
Discontinued
F8
WASHER-BELLEVILLE Obsolete - Not Available
 $2.99

Part Number:1767648

Discontinued

Discontinued
 $2.99
Discontinued
F9
BUSHING-NYLON Obsolete - Not Available
 $2.99

Part Number:1767649

Discontinued

Discontinued
 $2.99
Discontinued
F10
Use 912-0291
 $4.99

Part Number:712-0291

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional)
 $4.99
Usually ships in 7 - 12 business days
 $4.99
F11
DECAL-WHEEL DRIVE {34321,34321C} Obsolete - Not Available
 $3.44

Part Number:1768320

Discontinued

Discontinued
 $3.44
Discontinued
F12
Cable-drive Contro
 $38.96

Part Number:1909996P

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $38.96
Usually ships in 7 - 12 business days
 $38.96
Page G
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page G class=
 Fig #
G12A
Kit-whl Arm Replac
 $163.55

Part Number:1904214

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: This Kit Is Designed To Replace The Left And Right-Side Front Wheel Arms.
 $163.55
Usually ships in 7 - 12 business days
 $163.55
G1
Hub-wheel Spacer
 $6.15

Part Number:1902333

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.15
Usually ships in 7 - 12 business days
 $6.15
G2
Screw-hxskt 1/4-20x.
 $4.99

Part Number:1903399

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
G3
Washer Shim .030 H
 $5.96

Part Number:1902283

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $5.96
Usually ships in 7 - 12 business days
 $5.96
G4
Washer Shim .015 H
 $10.97

Part Number:1902284

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $10.97
Usually ships in 7 - 12 business days
 $10.97
G5
Bearing-carrier
 $14.64

Part Number:1903744

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $14.64
Usually ships in 7 - 12 business days
 $14.64
G6
Clip-rod Lh B
 $8.42

Part Number:1765551

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.42
Usually ships in 7 - 12 business days
 $8.42
G7
Clip-rod Rh A
 $11.00

Part Number:1765550

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $11.00
Usually ships in 7 - 12 business days
 $11.00
G8
Arm-wheel Lt
 $63.42

Part Number:1909933001

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $63.42
Usually ships in 7 - 12 business days
 $63.42
G9
Arm-wheel Rt
 $82.44

Part Number:1909927001

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $82.44
Usually ships in 7 - 12 business days
 $82.44
G10
Bearing-nyliner
 $3.99

Part Number:1768962

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
G11
Spring-crest
 $16.34

Part Number:1909948

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $16.34
Usually ships in 7 - 12 business days
 $16.34
G12
Washer-1.0x1.5x.0
 $3.99

Part Number:1915058

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
G13
Bearing-axle Arm R
 $6.13

Part Number:1766500

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.13
Usually ships in 7 - 12 business days
 $6.13
G14
Washer-1.468 X 1.0
 $3.99

Part Number:1185816

In Stock

In Stock
 $3.99
In Stock
 $3.99
G15
Ring-retaining Ext
 $4.99

Part Number:716-04104

In Stock

In Stock
 $4.99
In Stock
 $4.99
G16
Screw-set Sq 1/4-20
 $3.99

Part Number:1903631

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
G17
Key-woodruff #3-1/
 $4.99

Part Number:914-0112

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
Page H
Troy-Bilt 34021 4HP-21" Single (ADJ.) Speed S.P. Mower Page H class=
 Fig #
H1
BRKT-STOP NGMM Obsolete - Not Available
 $13.90

Part Number:1909849001

Discontinued

Discontinued
 $13.90
Discontinued
H2
Hex Lock Nut 1/4-20
 $3.99

Part Number:712-0324

In Stock

In Stock

Note: Part of Motor, Switch & Cord Ass\\\\\\\'y. Comp. (Ref. 49)
 $3.99
In Stock
 $3.99
H3
Screw-hex Head Cap
 $3.99

Part Number:1186310

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
 Fig #
Cultivator Parts  Lawn Mower Parts

Repair Guides for Troy-Bilt 4HP-21" Single (ADJ.) Speed S.P. Mower 34021

How to Replace the Fuel Filters in Your Outdoor Power Equipment

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

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.

How to Winterize Power Tools and Machines

This video explains how to properly winterize power tools and machines for winter storage, increasing the life and performance of seasonal tools.

Lawn and Garden Machines and Power Tools

This article lists the major categories of lawn and garden tools and machines, explaining the basic applications, types, and features of each.

Questions & Answers for Troy-Bilt 34021

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