Pleasure Craft Marine / Crusader RM0121 Thermostat Housing GasketThis thermostat housing gasket is a genuine OEM replacement part for Pleasure Craft Marine and Crusader engines. This gasket does not have a grounding rivet.This part is designed for use with Crusader MP 5.0L / 5.7L freshwater cooled marine engines from 2004 as well as MP 8.1L water distribution housing to water crossover assemblies.Replaces: Indmar; 551004; Pleasure Craft Marine ; RM0121;