The GM LS3 Style 2.35 Dia LS Thermostat with 2.73 Height 190° Jiggle Pin Thermostat is a precision-engineered thermostat designed for LS-series engines requiring reliable engine temperature control. Built to maintain consistent coolant flow and proper operating temperature, this thermostat supports efficient engine performance and long-term durability. It is commonly used in LS engine builds, performance upgrades, and replacement cooling system maintenance.