Motorad 281-192 Engine Coolant Thermostat

Engine Cooling Thermostat for Toyota and Lexus

Motorad 281-192 is a standard engine coolant thermostat built to OE specifications for precise coolant temperature control. It uses OEM-quality materials and a copper case with wax compound for quick reaction to coolant temperature changes.

Key Features

• Engine coolant thermostat for the cooling system
• OE supplier manufacturing standards and processes
• Copper case and wax compound for rapid temperature response
• Standard 192F temperature rating
• Direct-fit application coverage for many Toyota, Lexus, Scion, Mitsubishi, Pontiac, Chevrolet, Ford, and Dodge models

Detailed Description

This Motorad Standard thermostat, part number 281-192, is built for drivers who need stable engine temperature control in a wide range of import and domestic applications. It is a common replacement choice for Toyota Camry, Toyota Corolla, Toyota Tacoma, Lexus ES350, and Lexus RX350 cooling system service, as well as other listed vehicles. The 192F calibration supports higher alternate temperature replacement applications where the original specification calls for this operating range.

Motorad 281-192 is manufactured with OEM-quality materials and safety standards, following OE supplier processes to match factory specifications. The copper case and wax compound are used to promote fast response as coolant temperature changes, helping the thermostat open and close at the proper time.

This part cross-references AMS Automotive 4079 for the same application.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Slow warm-up after cold starts
• Temperature fluctuation in the cooling system
• Cooling system service on Toyota, Lexus, and related applications
• Replacement of a thermostat that no longer opens and closes at the correct temperature

Installation Notes and Tips

Verify the engine code and thermostat temperature rating before installation. Clean the housing sealing surfaces thoroughly and inspect the coolant condition, hoses, and housing for wear while servicing the thermostat. Confirm fitment by year, make, and model, especially on Toyota Camry, Toyota Corolla, and Lexus RX350 applications where multiple cooling system configurations may exist.

Quality Assurance

Motorad manufactures this thermostat to OE specifications using OEM-quality materials and OE supplier processes for consistent cooling system performance.