RCM (Rubber Coated Metal) with silicone bead gasket. The 60629-65 is a James part number, since this gasket was never originally made or used by H-D on aluminum primaries. It is designed to be used as a seal between inner primary housing and engine crankcas (like the 60629-55 gasket that H-D used on the earlier 55-64 tin primaries). Includes the required 31479-65 lockplate as used on the inside of the inner primary in combination with 3991 bolts (not included). OEM replacement reference for lock plate 31479-65.

Note: See 526296 for lock plate only.