PLEASE NOTE: Delays in processing orders. Orders placed between Thursday 22 January and Monday 09 February will be processed 10 February.
Valve cap solid copper ring for side valve (SV) engine with captive (non-removable) cylinder head. Suits Nortons pre c1932 for non-removable head. OD 2in (52mm); ID 1.75in (45.45mm); Th 0.080in (2mm). Als fits Norton OHV exhaust ring 1932+Original part number 5137 - Valve cap copper asbestos washer
