Triumph Pre-Unit Twins Primary Cover Gaskets (1) - Choose Gasket Type Part # - Application:57-0504 / T504 (Pre-1954 Rigid Frame W/ Dynamo - Long Type) M Part number is 54955256

M Part number is 54955256

T100SS & T100SC) from 1957-1974

Also fits all Triumph Unit Singles (TR25W Trophy

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Fits many Triumph 650 Twins & Triples (Bonneville

Triumph Pre-Unit Twins Primary Cover Gaskets (1) - Choose Gasket Type Part # - Application:57-0504 / T504 (Pre-1954 Rigid Frame W/ Dynamo - Long Type) M Part number is 54955256New English made Triumph primary cover gaskets. Our gaskets for sale are made for Triumph pre unit twins including 500 and 650 models (6T, T110, T120, etc) up to approx 1962. Gaskets are high quality and are ready to be installed. Please refer to your parts book to ensure the best fitment. Use the drop down menu to select which primary cover gasket you need gaskets are sold each primary cover gaskets may change color than what is pictured..