Comes with embossed copper head gaskets and RCM (rubber coated metal) cylinder base gaskets with a double silicone bead.
Kit for servicing an engine.
OEM replacement part number 16770-36 (old HD 12-36) head and base gasket 16774-21 (old HD 46-21).
Compatible with:> 36-47 E, EL Knucklehead
