For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21B-643B011 Super Bronco CRT Roto-Tiller (2007) Page 1 of 16
Drive & Wheels
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For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21B-643B011 Super Bronco CRT Roto-Tiller (2007) Page 2 of 16
Drive & Wheels
Ref # Part Number Qty DescriptionS/P/F
1 736-0159 Flat Washer, 5/161 S
2 756-04198 Pulley, Engine Drive1 S
3 656-04023 Transmission Pulley Bronco Model1
3 656-04005 Transmission Pulley Super Bronco and
1 S
Pro-Line Models
4 756-04169 Pulley, Reverse Idler Super Bronco and
5 786-04095 Guard, Belts/Pulleys1 S
6 754-04090 Forward Drive Belt1 S
7 754-04091 Reverse Drive Belt Super Bronco and
8 731-05268 Belt Cover1 /P
9 732-04289 Reverse Return Spring Super Bronco and
10 732-04081 Belt Guide Super Bronco and Pro-Line
11 732-04079 Belt Guide1 S
12 786-04068 Engine Bracket, Left1 /P
13 786-04069 Engine Bracket, Right1
14 786-04070 Bracket, Belt Cover1 S
15 748-04087 Shoulder Washer1 S
16 786-04276 Reverse Idler Arm Super Bronco and
17 786-04275 Forward Idler Lever1 S
18 710-0672 Hex Hd. Screw, 5/16-24 x 1.25 Bronco Model1 /P
18 710-0117 Hex Hd. Screw, 5/16-24 x 1 Super Bronco
1 S
Pro-Line Models
1 S
Pro-Line Models
1 S
Pro-Line Models
1 /P
Models
1 /P
Pro-Line Models
1 S
and Pro-Line Models
19 710-0237 Hex Hd. Screw, 5/16-24 x 5/81 /P
20 710-0376 Hex Hd. Screw, 5/16-18 x 11 /P
21 710-04049 Hex Hd. Screw, 5/16-18 x 5/81 /P
22 710-0347 Hex Hd. Screw, 3/8-16 x 1-3/4 Bronco Model1 /P
22 710-0520 Hex Hd. Screw, 3/8-16 x 1.50 Super Bronco
23 710-0599 Screw, Self-Tapping, 1/4-20 x 1/21 /P
24 710-3103 Hex Hd. Screw, 5/16-18 x 2 Super Bronco
25 712-3000 Lock Nut, 3/8-161 S
26 712-3009 Lock Nut, 5/16-18 Super Bronco and
27 736-0119 Lock Washer, 5/16 Bronco Model1 S
28 750-0535 Spacer, .380 ID x .625 OD x .21 Bronco
28 736-3050 Flat Washer .406 x .812 x .051 Super Bronco
29 736-3090 Flat Washer1 /P
30 736-0452 Bell Washer1 S
31 710-0459A Hex Hd. Screw, 3/8-24 x 1.50, GR51 /P
1 /P
and Pro-Line Models
1 /P
and Pro-Line Models
1 S
Pro-Line Models
1 S
Model
1 /P
and Pro-Line Models
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For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21B-643B011 Super Bronco CRT Roto-Tiller (2007) Page 3 of 16
Drive & Wheels
Ref # Part Number Qty DescriptionS/P/F
32 736-04181 Support Washer1 S
33 732-04085 Forward Return Spring1 /P
34 786-04107 Bracket, Cable Mounting1
35 756-04170 Forward Idler Pulley1 /P
36 714-0105 Key, 3/16" x 1"1 S
37 736-3078 Flat Washer1 /P
38 736-04193 Belleville Washer1 /P
39 710-0805 Hex Screw, 5/16-18 x 1.50 Gr5 Super Bronco
1 /P
and Pro-Line Models
39 710-0395 Hex Screw, 5/16-18 x 2-1/4, Gr5 Pro-Line
40 712-04063 Nut, Hex Lock, 5/16-181 /P
41 750-0258 Spacer, Shoulder Bronco Model1 /P
42 736-0315 Washer, Flat, .75 x 1.5 x .125 Bronco Model1 /P
42 736-04192 Flat Washer .786 x 1.000 x .031 Super
43 736-0242 Bell Washer1 /P
44 749-04193 Bumper Pro-Line Model1 S
45 726-0201 Nut, Speed, 5/16-18 Pro-Line Model1
46 714-0143 Klik Pin1 S
47 734-04188 Complete Wheel Assembly 10 x 2.75 Bronco
48 634-04232 Complete Wheel Assembly 13x 5 x 6 Super
634-04218 Rim Assembly Super Bronco and Pro-Line
734-04163 Tire Super Bronco and Pro-Line Models1 S
734-0255 Air Valve1 S
49 714-04048 Cotter Pin1 /P
50 711-04126 Clevis Pin1 /P
51 618-04360 Transmission Assembly Bronco Model1 S
51 618-04362 Transmission Assembly Super Bronco and
1 /P
Model
1 /P
Bronco and Pro-Line Models
1
Model
1 S
Bronco and Pro-Line Models
1
Models
1 S
Pro-Line Models
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For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21B-643B011 Super Bronco CRT Roto-Tiller (2007) Page 4 of 16
Drive Shaft
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For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21B-643B011 Super Bronco CRT Roto-Tiller (2007) Page 5 of 16
Drive Shaft
Ref # Part Number Qty DescriptionS/P/F
1 GW-9517 Snap Ring1 S
2 GW-1714 Bearing, Tapered Roller (with race)1 S
3 GW-50043 Support Washer, Rear1 S
4 711-04110 Drive Shaft1 S
5 GW-1224-1 Shim, Rear Bearing Cap, .010" thick Use as
1 S
required to obtain between .005" and .015"
allowable end-play
5 GW-1224-2 Shim, same as above, except .030" thick
5 GW-1224-3 Shim, same as above, except .005" thick
5 GW-1224-4 Shim, same as above, except .062" thick
GW-1325C Shim Set Incl. The following shims: two
1 S
Use as required to obtain between .005" and
.015" allowable end-play
1 S
Use as required to obtain between .005" and
.015" allowable end-play
1 S
Use as required to obtain between .005" and
.015" allowable end-play
1 /P
#1224-1, two #1224-2 & one #1224-4
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