New! USA Made Triumph & BSA Unit Singles Primary Chaincase Gasket. We can not stress enough when rebuilding any engine that you use only high quality parts! Gaskets play a crucial role! This gasket is made right here in America and it is made to last only using the best quality materials! Whats great about this set is that the gaskets do not require any sealants! Just clean your surfaces with alcohol and away you go! Fits all BSA & Triumph Unit Singles (C15, SS80, B40, SS90, B44, Victor & B50) up to 1973. Please refer to your parts catalog for proper fitment.*****Please note that the gasket that is pictured is a “Generic” photo. You will receive the correct gasket for your application.*****Made in the USAO.E.M Part number is 40-0247, 70-7856, E7856, E11418 or 71-1418