Cometic, cylinder base gasket set. SLS 4" bore

99-17 Twin Cam (excl. 14-16 Twin Cooled) 110" & others with 4" bore cylinders (NU)

Front & rear gasket for one engine. .020" thick SLS (Single Layer Steel), a non-embossed steel core with a .001" thick coating of heat resistant nitrile rubber on both sides.