Engine Coolant Thermostat

This thermostat is specifically engineered for a range of GMC C3500 models from 1979-1986 and 1988-1995. It boasts increased strength and durability, ensuring reliable performance in demanding conditions. The design includes a larger opening that facilitates increased coolant flow, contributing to more efficient engine cooling. The MotoRad 83634YZ is calibrated for a fast warm-up and consistent temperature control, playing a critical role in maintaining optimal engine operating temperature and preventing overheating. This thermostat operates at a temperature of 160°F and is also available in an alternate temperature option. This particular thermostat is listed as compatible with various GMC C3500 trims and engine configurations, specifically those with the 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated engine. Examples of compatible vehicles include Sierra SL Crew Cab Pickup, Sierra SLE Crew Cab Pickup, Sierra SLE Extended Cab Pickup, Sierra SLE Standard Cab Pickup, Sierra SL Extended Cab Pickup, Sierra SL Standard Cab Pickup, and Sierra SLT Extended Cab Pickup across the specified model years.