ACDelco 12T99D Engine Coolant Thermostat

ACDelco 12T99D Engine Coolant Thermostat

This part generally fits Chevrolet, GMC, Hummer, Workhorse, Workhorse Custom Chassis vehicles & includes models such as C4500 Kodiak, C4500 Topkick, C5500 Kodiak, C5500 Topkick, Express 2500, Express 3500, Express 4500, H1, LF72, P42, Savana 2500, Savana 3500, Savana 4500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, Silverado 3500 HD with the trims of Alpha Sport Utility 4-Door, Base, Base Cab & Chassis 2-Door, Base Cab & Chassis 4-Door, Base Crew Cab Pickup 4-Door, Base Cutaway 2-Door, Base Cutaway Van 2-Door, Base Extended Cab Pickup 4-Door, Base Extended Cargo Van 3-Door, Base Standard Cab Pickup 2-Door, Base Standard Cargo Van 3-Door, Base Standard Cargo Van 4-Door, Base Standard Passenger Van 3-Door, Base Step Van - Stripped Chassis, Base Stripped Chassis - Incomplete, C4C042, C4C042 Cab & Chassis - Crew Cab, C4C042 Cab & Chassis - Medium Conventional, C4C044, C4C044 Cab & Chassis - Crew Cab, C4C044 Cab & Chassis - Medium Conventional, C4E042, C4E042 Cab & Chassis - Crew Cab, C4E042 Cab & Chassis - Medium Conventional, C4E044, C4E044 Cab & Chassis - Crew Cab, C4E044 Cab & Chassis - Medium Conventional, C4U042, C4U042 Motor Home - Cutaway, C4V042, C4V042 Cab & Chassis - Cutaway, C4V042 Cutaway, C5C042, C5C042 Cab & Chassis - Crew Cab, C5C042 Cab & Chassis - Medium Conventional, C5C044, C5C044 Cab & Chassis - Crew Cab, C5C044 Cab & Chassis - Medium Conventional, C5E042, C5E042 Cab & Chassis - Crew Cab, C5E044, C5E044 Cab & Chassis - Crew Cab, C5E044 Cab & Chassis - Medium Conventional, C5U042, C5U042 Cutaway, C5U042 Motor Home - Cutaway, C5V042, C5V042 Cab & Chassis - Cutaway, C5V042 Cutaway, Denali Crew Cab Pickup 4-Door, High Country Crew Cab Pickup 4-Door, LS Cab & Chassis 2-Door, LS Cab & Chassis 4-Door, LS Crew Cab Pickup 4-Door, LS Extended Cab Pickup 4-Door, LS Extended Cargo Van