Vortec 4.3 V6 Thermostat 1999-2013 Sixity Auto 4036004235

Sixity Auto thermostat for the Vortec 4.3 V6 (1999-2013). Listed for one application: Vortec 4.3 V6 engines, 1999-2013, in Chevrolet, GMC, Oldsmobile, Isuzu applications. Confirm your engine code and year against this listing before ordering.

What it does

The thermostat controls when coolant flows to the radiator and sets operating temperature. Stuck closed it overheats the engine; stuck open it never warms up, hurting mileage and setting a P0128. A new thermostat at the correct rating restores stable temperature.

Fits

• Chevrolet vehicles with the Vortec 4.3 V6 engine, 1999-2013
• GMC vehicles with the Vortec 4.3 V6 engine, 1999-2013
• Oldsmobile vehicles with the Vortec 4.3 V6 engine, 1999-2013
• Isuzu vehicles with the Vortec 4.3 V6 engine, 1999-2013

Fixes

• P0128 coolant temperature below regulating range
• overheating with a cool radiator
• a slow warm-up and poor heater output

What's included

• the thermostat (and housing / seal where the listing says so)

Specifications

• Brand: Sixity Auto
• Part number: 4036004235
• Shipping weight: 0.2 lb
• Package size: 2.75 x 2.75 x 2.75 in
• Condition: new
• Product type: Thermostat

Cross-reference

Replaces or interchanges with Sixity Auto 4036004235 for the Vortec 4.3 V6. Check the part number stamped on your original before ordering.

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.