Before 1972 Triumph used a letter prefix and from 1972 onwards a number prefix.
The later system has the number prefix followed by four numbers.
e.g. E2879 became 70-2879 and T57 became 57-0057 etc.
These Prefixes are as follows:
- T = 57 – e.g. T98 becomes 57-0098
KICKSTART SHAFT BUSH
Part No: 57-0023
KICKSTART SPRING P/U/650/750
Part No: 57-0031
CAMPLATE PLUNGER
Part No: 57-0044
KICKSTART STOP
Part No: 57-0045
PIN KICKSTART SPRING RETAINING
Part No: 57-0047
GEAR SHAFT BUSH
Part No: 57-0057
SPACER
Part No: 57-0087
NUT 5/16 CEI THIN
Part No: 57-0224
CIRCLIP
Part No: 57-0280
GEARBOX SELECTOR FORK ROD TO 69 STEPPED NOS
Part No: 57-0291- Out of stock
LEVEL PLUG CEI
Part No: 57-0361
PLUNGER HOUSING
Part No: 57-0372- Out of stock
PLUNGER HOUSING STAINLESS
Part No: 57-0372S
CLUTCH ROLLER PKT 20
Part No: 57-0394
P/U GEAR INDICATOR PLATE ASSEMBLY WITH ARM AND RIVETS
Part No: 57-0396A