Part number is GMC226. Here we have a brake master cylinder suitable for Triumph Spitfire 1500 1976-82 (tandem brake system).
TRIUMPH SPITFIRE 1500 BRAKE MASTER CYLINDER 1976 -1982 TANDEM SYSTEM GMC226
Triumph Spitfire 1500 , 1500 , Spitfire MkIV , Cover, hood stowage, black
Brake Master cylinder , Triumph Spitfire 1500 5/8 IN BORE , GMC220
TRIUMPH SPITFIRE 1500 (1976-1980) TRW TANDEM BRAKE MASTER CYLINDER (GMC226)
New Car Battery FITS Triumph Spitfire 1500 1500 Petrol 1976 (012LP)
TRIUMPH SPITFIRE 1500, DOLOMITE 1500 HS4 SU AIR FILTERS & GASKETS x 2 (GFE1063)