PLEASE NOTE: Delays in processing. Orders placed between Thursday 11 April and Wednesday 1 May will be processed 02 May.
Valve cups (top collar) for Inlet and exhaust valve, for Norton twins, matchless twins 1964+ (each). 4 required per engine. Suits Norton 500/600/650/750/850 Twins 1949-75 & Matchless 750 G15 1964-68 with Norton engine steel top valve spring collar (4 reqd). Original Norton part numbers: D12/147; T2073; T186; NM186; 067506; 06-7506 - valve spring cup top
