REUSABLE Triumph swingarm frame primary gasket kit 1955-1962Not only does this gasket seal perfectly but it fits, too! Included with the first ever aluminum core reusable Pre Unit Triumph primary gasket is everything you will need to seal it up. This fits pre unit swingarm frame Triumph 500 and 650 models with alternator only (will not fit dynamo equipped models) This convenient kit includes one . 048" thick aluminum core Primary gasket, one 1 4" drain plug copper washer, and one inspection cap washer. This

both Pre Unit and Unit

This 9:1 compression Triumph piston is a replica of the AE pistons originally fitted as OEM

BSA singles (B25 etc) and Triumph singles (Tiger Cub)

500" intake valves and 2) 1

No problem

Viton tipped and made in UK

and 4 bolt inspection caps

and will work with stock Triumph 500

and are typically used in warmer climates or when the vehicle will only be used in normal ambient temperatures

and a range of other fluids

and much longer service life

The larger diameter may not fit some early pre unit external drain pushrod tubes