Cylinder Head spares/parts for 1968-71 250 Triumph singles models

Key

Part No.

Description

Per

Models

NI

97-2635

Fibre washer21971

NI

PACK-ADV-002

Valve & guide packAAll

NI

PACK-INTER-002

Top end overhaul packAAll

1

71-2284

Crankshaft11971

1

70-9547

Crankshaft11969

1

70-9848

Crankshaft11970

2

70-8028

Crankshaft assembly11968

2

70-8028

Crankshaft assemblyRef only1969

2

70-9848

CrankshaftRef only1970

2

71-2285

CrankshaftRef only1971

3

70-8031

Flywheel driveside11968

3

70-9906

Flywheel LHRef only1970

3

70-9519

Flywheel drivesideRef only1969

3

71-2287

Flywheel LHRef only1971

4

70-8034

Flywheel timing sideRef only1969

4

70-8034

Flywheel timing side11968

4

70-9907

Flywheel right handRef only1970

4

71-2288

Flywheel right handRef only1971

5

70-8036

Plug   5/8″  18 tpi11968 – 71

6

70-8032

Flywheel bolt41968 – 71

7

70-8033

Flywheel bolt41968 – 71

8

70-8037

Thrust washer81968 – 70

8

71-1003

Plain washer 3/8 x 5/8 x 3/6481971

9

70-8304

Shim (0.003″)A.R.1971

9

70-8305

Shim (0.005″)A.R.1971

9

70-8038

Shim 1″ x 1-3/8 x 0.010A.R.1968 – 71

9

70-8039

Shim, crankA.R.1968 – 71

10

70-1580

Key11968 – 71

11

70-8144

Key11968 – 71

12

70-9911

Con Rod11971

12

70-8836

Con rod11969 – 70

13

70-3705

Big end bolt, CEI21968 – 70

13

70-9914

Big end bolt, UNF21971

14

70-2922

Big end nut CEI21968 – 70

14

21-2016

Big end locknut, UNF21971

15

60-0911

Spark plug N311968 – 71

16

70-6068

Big end shells1 (Pair)1968 – 71

17

70-7998

Piston complete11968 – 70

17

71-1801

Piston11971

18

70-8276

Plain compression ring11969 – 70

18

70-6838

Taper compression ring11971

18

70-8044

Cam bush, inner11968

19

70-6838

Taper compression ring11969 – 70

19

70-6838

Taper compression ring21971

19

70-8047

Taper compression ring11968

20

70-8050

Oil control ring11968

20

70-6839

Oil control ring11969 – 71

21

WE203E

Gudgeon pin11968 – 70

21

70-6861

Gudgeon pin11971

22

70-6869

Piston circlip21971

22

WE479

Piston circlip Hepolite21968 – 70

23

70-1895

Cylinder barrell11968

23

70-9263

Cylinder Barrel11969 – 70

24

70-7728

Base gasket11968 – 70

24

71-2233

Base gasket11971

25

70-8053

Exhaust push rod11968 – 71

25

70-8055

In push rod11968 – 71

26

70-7739

Tappet,21968 – 70

26

71-2513

Tappet21971

27

70-8008

Stud, crankcase21968 – 71

28

70-8196

Stud nut21968 – 71

29

70-8215

Washer21968 – 71

30

70-8197

Cylinder Head11968 – 70

30

71-2238

Cylinder head11971

31

70-8228

Rockerbox stud21968 – 70

31

21-2092

Rocker box stud21971

32

70-8229

Stud, Stud 5/16 x BSF/CEI x 2-15/1621968 – 70

32

14-1627

Cylinder Head Stud21971

33

70-7996

Stud31969 – 70

33

14-1629

Stud, 5/16 UNC/F x 3-1/231971

33

70-8079

Stud – long (3 1/16 in O.A.)31968

34

70-8010

Chaincase dowell21968 – 70

34

71-1989

Dowel21971

35

70-8080

Rocker box stud21969 – 70

35

14-1627

Cylinder Head Stud21971

36

70-8227

Stud 5/16 CEI/BSF x 1-3/821968 – 70

36

14-1619

Crankcase stud 5/16 UNC/F x 1-1/421971

37

70-8225

Valve guide11968 – 69

37

71-1227

Service size valve guide (.002″)11970 – 71

37

71-1228

Service size valve guide (.015″)11970 – 71

37

71-2231

Inlet valve guide11971

38

70-8226

Valve guide11968 – 70

38

71-2226

Exhaust valve guide11971

38

71-1229

Service size valve guide (.002″)11970 – 71

38

71-1230

Service size valve guide (.015″)11970 – 71

39

70-8081

Head gasket11968 – 71

40

70-8137

Carburettor stud nut21968 – 71

41

70-8136

Carburettor flange washer11968 – 70

41

71-1416

Carburetter Gasket11971

42

70-7820

Carburetter insulator 1-3/1611968 – 71

43

70-7911

Rocker box11968 – 70

43

71-2197

Rocker box11971

44

70-7858

Rocker box gasket11968 – 70

44

71-2198

Rocker box gasket11971

45

70-7787

Rocker spindle21968 – 71

46

70-7790

Rocker inlet11968 – 71

47

70-7791

Exhaust rocker11969 – 70

48

70-1483

Rocker ball pin21968 – 71

49

70-1575

Rocker thrust washer21968 – 71

50

70-1330

Rocker spindle washer21968 – 71

51

70-8952

Tappet cover11968 – 71

52

70-8085

Gasket11968 – 70

52

71-1425

Rocker spindle inspection gasket11971

53

70-8086

Rocker inspection cover screw21968 – 71

54

70-8116

Valve spring top collar71968

54

70-8116

Valve spring top collar21969

54

71-1165

Top collar21970 – 71

55

70-8117

Collet4 Halves1968 – 69

55

71-1166

Collet4 Halves1970 – 71

56

70-8112

Inlet valve11968 – 71

57

70-7777

Exhaust valve11968 – 71

58

60-1002

Plug cover11968 – 71

59

14-0403

3/8 UNF half lock nut21968 – 71

60

70-8084

Washer21968

60

S25-2 Triumph

Plain washer21969 – 71

61

70-7958

Corrugated ringA.R.1968 – 69

61

70-7959

Corrugated ringA.R.1968 – 69

61

70-7960

Corrugated ringA.R.1968 – 69

62

70-1564

Rocker box cap21968 – 71

63

70-1577

Cap washer21968 – 71

64

70-8087

Nut21968 – 70

64

14-0302

3/8 UNF nut21971

65

70-8088

Washer21968 – 70

66

70-8089

Nut, 1/4 CEI reduced & thin, see SP1/4 for locking version71968 – 70

67

70-8072

Washer71968 – 70

68

70-8082

Oil pipe adapter 1/8 BSP11968 – 71

69

70-8083

Fibre washer11968 – 71

70

70-8106

Rocker oil feed pipe11968 – 71

71

70-8107

Spigot11968 – 71

72

70-8110

3/16 union nut11968 – 71

73

70-8113

Bottom cup21968 – 70

73

71-2366

Valve spring cup21971

74

70-8114

Outer valve spring21968 – 70

74

71-2223

Outer valve spring21971

75

70-8115

Inner valve spring21968 – 71

76

70-8111

Hose clip11968 – 70 – 71

77

70-8105

Oil feed pipe – buy individual components11968 – 70 – 71

78

70-4003

Small end bush11968

79

70-8138

Washer11968

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