Troy-Bilt 21A 644H063 6.75 HP Roto Tiller Parts manual (2003)

For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983

21A-644H063 6.75 HP Roto-Tiller (2003) Page 1 of 16
Bumper

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21A-644H063 6.75 HP Roto-Tiller (2003) Page 2 of 16
Bumper

Ref # Part Number Qty DescriptionS/P/F

1 1918749 Bumper1
2 710-0395 Hex Screw, 5/16-18 x 2-1/4, Gr51 /P
3 712-0267 Nut, Hex, 5/16-181 S
4 736-0119 Lock Washer, 5/161 S

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21A-644H063 6.75 HP Roto-Tiller (2003) Page 3 of 16
Drive

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21A-644H063 6.75 HP Roto-Tiller (2003) Page 4 of 16
Drive

Ref # Part Number Qty DescriptionS/P/F

1 1107382 Flat Washer, 5/161 /P
2 1108841 Key, 3/16" x 1-1/2"1 S
3 619-04016 Pulley, Engine Drive1 S
4 1916532 Transmission Pulley1 S
5 1916535 Pulley, Reverse Idler1 /P
6 1916652 Guard, Belts/Pulleys1 S
7 1916657 Forward Drive Belt1 /P
8 1916658 Reverse Drive Belt1 /P

9 1916660 Belt Cover1 S
10 1916724 Reverse Return Spring1 /P
11 1916725 Belt Guide1 S
12 1916726 Forward Belt Guide1 /P
13 1916794 Engine Bracket, Left1 S
14 1916795 Engine Bracket, Right1 S
15 1917326 Bracket, Belt Cover1 S
16 1917746 Shoulder Washer1 S
17 1918731 Reverse Idler Arm1 S
18 1918744 Forward Idler Lever1 S
19 710-0117 Hex Hd. Screw, 5/16-24 x 11 S
20 710-0237 Hex Hd. Screw, 5/16-24 x 5/81 /P
21 710-0376 Hex Hd. Screw, 5/16-18 x 11 /P
22 710-04049 Hex Hd. Screw, 5/16-18 x 5/81 /P
23 710-0520 Hex Hd. Screw, 3/8-16 x 1-1/21 /P
24 710-0599 Screw, Self-Tapping, 1/4-20 x 1/21 /P
25 710-3103 Hex Hd. Screw, 5/16-18 x 21 /P
26 712-3000 Lock Nut, 3/8-161 S
27 712-3009 Lock Nut, 5/16-181 S
28 736-0119 Lock Washer, 5/161 S
29 736-3050 Flat Washer, 3/81 /P
30 736-3090 Flat Washer1 /P
31 736-0452 Bell Washer1 S
32 710-0459A Hex Hd. Screw, 3/8-24 x 1.5, GR51 /P
33 GW-50027 Support Washer1 /P
34 GW-55034 Forward Return Spring1 S
35 GW-55049 Bracket, Cable Mounting1
36 GW-9090 Forward Idler Pulley1 S
37 GW-9301 Key, 3/16" x 1"1 S
38 GW-9929 Flat Washer1 /P
39 GW-9944 Belleville Washer1 S
40 710-0395 Hex Screw, 5/16-18 x 2.25 Gr51 /P
42 UNKNOWN1

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21A-644H063 6.75 HP Roto-Tiller (2003) Page 5 of 16
Drive Shaft

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