Gears, shafts, selectors & starting mechanism spares & parts for Triumph 1968-75 750cc – X75

Gears

Key

Part Number

Description

Per

1

21-2106

Screw3

2

57-4394

Housing1

3

60-3510

Sprocket oil seal1

4

57-4628

Mainshaft high gear assembly1

5

57-3989

Selector spindle1

6

57-4364

Selector fork, mainshaft 4th gear1

7

57-4366

Operating fork, 5 speed layshaft 3rd gear1

8

57-4624

Camplate1

9

57-4363

Operating quadrant1

10

60-1928

Split pin, 5/64 x  1 3/8″2

11

57-1896

Quadrant spindle1

12

60-3500

Oil seal, sleeve gear and cover plate1

13

60-3511

Needle roller2

14

57-4376

4th gear, mainshaft, 5 speed box1

15

57-4377

3rd gear, mainshaft 18T1

16

57-4575

Bush, 3rd gear, 5 speed1

17

57-4653

Mainshaft, 1st and 2nd gear1

18

57-4660

Selector, layshaft 1st gear1

19

57-3660

Index plunger, camplate sharper point1

20

57-4459

Plunger spring1

21

57-3978

Washer, 5/8 x 15/16 x 1/32, ally1

22

57-4400

Plunger housing1

23

70-8147

Clip1

24

57-4329

Gearbox inner cover1

24

57-4422

Gearbox inner cover complete1

25

57-0412

Gearchange spindle bush1

26

14-7101

Socket cap screw, 5/16 UNC x 3-1/41

27

14-6121

Set screw,  5/16 UNC x 2-1/21

28

70-3446

Washer, Engine mount rear1

29

14-6614

Case screw 1/4 UNC x 2-1/2 Pozidrive2

30

57-0989

Dowel2

31

71-1447

Gearbox inner gasket1

32

57-2656

Dip stick1

33

57-0912

Peg, thust washer locating1

34

57-1607

Thrust washer, layshaft1

35

57-4661

Driving dog, gearbox1

36

60-3494

Circlip, 5 speed gearbox1

37

57-4663

Bush1

38

57-4654

Layshaft, 1st gear1

39

57-4657

Layshaft, 2nd gear1

40

57-4662

Bronze bush, layshaft 2nd gear1

41

57-4647

Layshaft, 3rd gear1

42

57-4370

Mainshaft 5 speed (slight damage to thread – slight rust)1

43

57-4384

4th gear, Layshaft in 5 speed gearbox1

44

57-4576

Bush, Layshaft 4th1

45

57-4550

Layshaft high gear1

46

57-1607

Thrust washer, layshaft1

47

57-0912

Peg, thust washer locating1

48

21-1872

Timing hole plug UNC1

49

70-8896

O ring1

50

57-0989

Dowel2

51

57-4396

Nut, gearbox sprocket1

52

57-4395

Sprocket lockwasher1

53

57-4398

Gearbox sprocket, 18T1

54

57-1606

Needle roller bearing1

55

57-4548

Layshaft1

55

57-4549

Layshaft1

56

57-1614

Needle roller1

57

21-1862

Screw2

58

70-9327

Screw1

59

60-3552

Bearing1

60

57-4113

Bearing circlip, 5 speed gearbox1

61

57-1962

Washer 3/4 x 1-1/8 x 1/161

62

57-1250

Spring1

63

57-1963

Bush1

64

57-0730

Kickstart pinion1

65

57-0731

Ratchet1

66

57-2240

Kickstart nut tab washer, 9/16 bore1

67

21-0594

Kickstart ratchet nut 9/16 UNF1

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