Calorstat THF1538.82 Engine Coolant Thermostat

Engine Coolant Thermostat for GM, Ford, Toyota and VW

Calorstat THF1538.82 is a standard engine coolant thermostat built for precise coolant flow control in a wide range of applications. It opens at 82 C / 180 F, helping the cooling system reach and maintain the correct operating temperature in vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Express 1500.

Key Features

• Standard engine coolant thermostat for cooling system temperature regulation
• Opening temperature: 82 C / 180 F
• Sealing flange outside diameter: 2.1
• Height between flanges: 1.38
• Direct-fit style for listed applications
• Cross-reference: Motorad 2028-180 for the same application
• Part number: THF1538.82

Detailed Description

This Calorstat thermostat is specified for vehicles that require an 82 C / 180 F opening temperature, including many Chevrolet, GMC, Ford, Toyota, Volkswagen, Lincoln, Cadillac, Oldsmobile, and Isuzu applications. It is listed for models such as Chevrolet Astro, Blazer, S10, Tahoe, Silverado 1500, GMC Safari, Sierra 1500, Ford Thunderbird, Lincoln Town Car, and Volkswagen Jetta. The THF1538.82 part number is a useful reference when matching the correct thermostat to the original cooling system specification.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed warm-up and inconsistent cabin heat
• Temperature fluctuation during stop-and-go driving
• Cooling system service on high-mileage GM truck and van platforms
• Replacement needs for 82 C / 180 F thermostat applications

Installation Notes and Tips

Verify the thermostat opening temperature, flange dimensions, and housing style before installation. Confirm vehicle-specific fitment for your exact year and model, especially on Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Express 1500 applications. Inspect the thermostat housing and sealing surfaces during service to help ensure proper sealing and stable coolant control. Part number THF1538.82 should be matched against the original specification when ordering.

Quality Assurance

Calorstat is an established name in engine cooling components, and this thermostat is built to meet the listed dimensional and temperature requirements for the specified applications. Use the confirmed fitment data and OE-style specifications to select the correct replacement for your cooling system service.