REF

PART NO.

DESCRIPTION

NO.

 

 

1

736-0159

Flat Washer, 5/16

2

756-04198

Pulley, Engine Drive

3

656-04023

Transmission Pulley (A)

 

656-04005

Transmission Pulley (B) (C)

4

756-04169

Pulley, Reverse Idler (B) (C)

5

786-04095

Guard, Belts/Pulleys

6

754-04090

Forward Drive Belt

7

754-04091

Reverse Drive Belt (B) (C)

8

731-05268

Belt Cover

9

732-04289

Reverse Return Spring (B) (C)

10

732-04081

Belt Guide (B) (C)

11

732-04079

Belt Guide

12

786-04068

Engine Bracket, Left

13

786-04069

Engine Bracket, Right

14

786-04070

Bracket, Belt Cover

15

748-04087

Shoulder Washer

16

786-04276

Reverse Idler Arm (B) (C)

17

786-04275

Forward Idler Lever

18

710-0672

Hex Hd. Screw, 5/16-24 x 1.25 (A)

 

710-0117

Hex Hd. Screw, 5/16-24 x 1 (B) (C)

19

710-0237

Hex Hd. Screw, 5/16-24 x 58

20

710-0376

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

21

710-04049

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

22

710-0347

Hex Hd. Screw, 3/8-16 x 1-3/4 (A)

 

710-0520

Hex Hd. Screw, 3/8-16 x 1.50 (B) (C)

23

710-0599

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

24

710-3103

Hex Hd. Screw, 5/16-18 x 2 (B) (C)

25

712-3000

Lock Nut, 3/8-16

26

712-3009

Lock Nut, 5/16-18 (B) (C)

 

 

 

MODELS 643C, 643B & 645A

REF

PART NO.

DESCRIPTION

NO.

 

 

 

 

 

27

736-0119

Lock Washer, 5/16 (A)

28

750-0535

Spacer, .380 ID x .625 OD x .21 (A)

 

736-3050

Flat Washer .406 x .812 x .051 (B) (C)

29

736-3090

Flat Washer

30

736-0452

Bell Washer

31

710-0459A

Hex Hd. Screw, 3/8-24 x 1.50, GR5

32

736-04181

Support Washer

33

732-04085

Forward Return Spring

34

786-04107

Bracket, Cable Mounting

35

756-04170

Forward Idler Pulley

36

714-0105

Key, 3/16" x 1"

37

736-3078

Flat Washer

38

736-04193

Belleville Washer

39

710-0805

Hex Screw, 5/16-18 x 1.50 Gr5 (A) (B)

 

710-0395

Hex Screw, 5/16-18 x 2-1/4, Gr5 (C)

40

712-04063

Nut, Hex Lock, 5/16-18

41

750-0258

Spacer, Shoulder (A)

42

736-0315

Washer, Flat, .75 x 1.5 x .125 (A)

 

736-04192

Flat Washer .786 x 1.000 x .031 (B) (C)

43

736-0242

Bell Washer

44

749-04193

Bumper (C)

45

726-0201

Nut, Speed, 5/16-18 (C)

46

714-0143

Klik Pin

47

734-04188

Complete Wheel Assembly 10 x 2.75 (A)

48

634-04232

Complete Wheel Assembly 13 x 5 x 6 (B) (C)

 

634-04218

Rim Assembly (B) (C)

 

734-0255

Air Valve (B) (C)

 

734-04163

Tire (B) (C)

 

 

 

(A)For Model 643C

(B)For Model 643B

(C)For Model 645A

29

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Image 29
Troy-Bilt 643C Tuffy/Bronco, 645A Super Bronco manual Models 643C, 643B & 645A