DDM HEAVY DUTY STEEL REINFORCED CY/RC LH CRANKCASE GASKETNew crankcase gasket manufactured from flexible graphite and bonded to a stainless steel insert. Flexible graphite can withstand extreme temps and has superior sealing abilities; combined with a stainless steel insert, this gasket can hold up to the most extreme pressure and abuse. The material comprises two outer layers of graphite foil with a central stainless steel core. These gaskets are designed to withstand up to 1,200 degrees Fahrenheit (650 Celsius), measure 1/64 (.020") inch thich (0.5mm), and have a crush rating of 40%, allowing them to easily seal gaps. Fits Zenoah G23LH/G230RC/G260RC/G240RC/G270 engines. Fits Chung Yang CY23RC / CY26RC / CY27RC / CY29RC / GP290 engines. PMW part # 4018. Zenoah part # 5500-21141. Interchangeable with HPI part # 15428. FG part # 07305/8.