Displaying Drive parts for the Troy-Bilt 21A-644H063 6.75 HP Roto-Tiller (2003)

Find a full parts listing for all the parts in the Drive section of your equipment and add them straight to your cart from here.
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1

Troy-Bilt 1107382

Flat Washer, 5/16

Not available

Cub Cadet 936-0275

Alternative for 1107382: WASHERFL

Your price: $3.60

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2

Troy-Bilt 1108841

Key, 3/16" x 1-1/2"

Not available

Cub Cadet 914-0133

Alternative for 1108841: KEYSQ 316X1.50

Your price: $2.55

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3

Troy-Bilt 619-04016

Pulley, Engine Drive

Not available

Cub Cadet 919-04016

Alternative for 619-04016: PULLEY ENGINE

Your price: $30.21

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4

Troy-Bilt 1916532

Transmission Pulley

Not available

Cub Cadet 656-04005A

Alternative for 1916532: PULLEY ASMTRANS T

Your price: $41.02

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5

Troy-Bilt 1916535

Pulley, Reverse Idler

Not available

Cub Cadet 756-04169

Alternative for 1916535: PULLEYREV IDLER

Your price: $13.08

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6

Troy-Bilt 1916652

Guard, Belts/Pulleys

Not available

Cub Cadet 786-04095-0637

Alternative for 1916652: BLACK GUARDTRNS PULLE

Your price: $18.19

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7

Troy-Bilt 1916657

Forward Drive Belt

Not available

Cub Cadet 954-04090

Alternative for 1916657: BELTV FWD DRV 4

Your price: $13.45

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8

Troy-Bilt 1916658

Reverse Drive Belt

Not available

Cub Cadet 954-04091

Alternative for 1916658: BELTV REV DRV 3

Your price: $12.76

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9

Troy-Bilt 1916660

Belt Cover

Not available

Cub Cadet 731-05268

Alternative for 1916660: COVERBELT

Your price: $20.92

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10

Troy-Bilt 1916724

Reverse Return Spring

Your price: $3.44

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11

Troy-Bilt 1916725

Belt Guide

Not available

Cub Cadet 732-04081

Alternative for 1916725: GUIDEBELT

Your price: $5.48

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12

Troy-Bilt 1916726

Forward Belt Guide

Your price: $5.40

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13

Troy-Bilt 1916794

Engine Bracket, Left

Not available
14

Troy-Bilt 1916795

Engine Bracket, Right

Not available

Cub Cadet 786-04069

Alternative for 1916795: BRACKETENGINE RH

Your price: $12.52

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15

Troy-Bilt 1917326

Bracket, Belt Cover

Not available

Cub Cadet 786-04070-0637

Alternative for 1917326: BLACK BRACKETBELT COV

Your price: $24.52

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16

Troy-Bilt 1917746

Shoulder Washer

Not available

Cub Cadet 748-04087A

Alternative for 1917746: SPACERPIVOT IDLER

Your price: $3.44

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17

Troy-Bilt 1918731

Reverse Idler Arm

Not available

Cub Cadet 786-04276

Alternative for 1918731: IDLER ARMREVERSE

Your price: $8.76

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18

Troy-Bilt 1918744

Forward Idler Lever

Not available

Cub Cadet 786-04275-0637

Alternative for 1918744: BLACK ARMIDLERFORWARD

Your price: $19.13

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19

Troy-Bilt 710-0117

Hex Hd. Screw, 5/16-24 x 1

Not available

Cub Cadet 710-0888

Alternative for 710-0117: SCREWHEX SPECIAL

Your price: $2.31

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20

Troy-Bilt 710-0237

Hex Hd. Screw, 5/16-24 x 5/8

Your price: $2.39

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21

Troy-Bilt 710-0376

Hex Hd. Screw, 5/16-18 x 1

Your price: $2.18

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22

Troy-Bilt 710-04049

Hex Hd. Screw, 5/16-18 x 5/8

Your price: $2.40

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23

Troy-Bilt 710-0520

Hex Hd. Screw, 3/8-16 x 1-1/2

Your price: $2.35

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24

Troy-Bilt 710-0599

Screw, Self-Tapping, 1/4-20 x 1/2

Your price: $2.29

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25

Troy-Bilt 710-3103

Hex Hd. Screw, 5/16-18 x 2

Your price: $2.38

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26

Troy-Bilt 712-3000

Lock Nut, 3/8-16

Not available

Cub Cadet 912-3000

Alternative for 712-3000: NUTLOCK 3816

Your price: $2.35

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Qty:
27

Troy-Bilt 712-3009

Lock Nut, 5/16-18

Not available

Cub Cadet 912-3009

Alternative for 712-3009: NUTHEX CENTER LOC

Your price: $3.60

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28

Troy-Bilt 736-0119

Lock Washer, 5/16

Not available

Cub Cadet 936-0119

Alternative for 736-0119: WASHERLOCK 516

Your price: $2.29

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29

Troy-Bilt 736-3050

Flat Washer, 3/8

Your price: $2.34

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30

Troy-Bilt 736-3090

Flat Washer

Your price: $3.52

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31

Troy-Bilt 736-0452

Bell Washer

Not available

Cub Cadet 936-0452

Alternative for 736-0452: WASHERBELL

Your price: $2.35

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Qty:
32

Troy-Bilt 710-0459A

Hex Hd. Screw, 3/8-24 x 1.5, GR5

Your price: $4.25

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33

Troy-Bilt GW-50027

Support Washer

Your price: $3.60

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34

Troy-Bilt GW-55034

Forward Return Spring

Not available

Cub Cadet 732-04085

Alternative for GW-55034: SPRINGRETURN

Your price: $7.50

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35

Troy-Bilt GW-55049

Bracket, Cable Mounting

Not available
36

Troy-Bilt GW-9090

Forward Idler Pulley

Not available

Cub Cadet 756-04170

Alternative for GW-9090: PULLEYIDLER

Your price: $18.95

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Qty:
37

Troy-Bilt GW-9301

Key, 3/16" x 1"

Not available

Cub Cadet GW-9301099

Alternative for GW-9301: KEY .188 X 1.0

Your price: $2.08

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38

Troy-Bilt GW-9929

Flat Washer

Your price: $1.90

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39

Troy-Bilt GW-9944

Belleville Washer

Not available

Cub Cadet 736-04193

Alternative for GW-9944: WASHERBELVL .8

Your price: $3.60

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40

Troy-Bilt 710-0395

Hex Screw, 5/16-18 x 2.25 Gr5

Your price: $2.45

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42

Troy-Bilt

UNKNOWN

Not available

Spare Parts

Keep one set of belts, a spark plug, extra oil and an extra air filter for your snow blower at a minimum. If you have other high-wear items such as replaceable paddles/rotor blades you may keep an extra set as well. You may be able to get your machine up and running even if you can't make it to the repair shop.