Dorman 904-7257 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for OE-Style Replacement

Dorman 904-7257 is an engine coolant temperature sensor built to match the fit and function of the original sensor on specified vehicles. It is engineered for durable, reliable performance and uses a 2-terminal blade connection with an oval female connector for a direct-style service replacement.

Key Features

• Engine coolant temperature sensor for monitoring coolant temperature in the engine cooling system
• OE-style fit and function for specified vehicle applications
• Blade terminals with a 2-pin oval female connector
• Brass sensor body with a threaded end diameter of 19.05 and 1.5 mm thread size
• Resistance rating: 1.25 K ohms
• Connector and sensor design support straightforward replacement of the original unit

Detailed Description

This Dorman coolant temperature sensor, part number 904-7257, is designed for drivers and technicians replacing a failed engine coolant temperature sensor on supported applications. It uses a brass construction, blade terminals, and an oval female connector to mirror the original sensor interface. For vehicle-specific service work on Chevrolet, GMC, and other GM applications that use this style of sensor, 904-7257 provides the correct electrical and threaded connection details needed for a proper repair.

This part cross-references GM OE 23514708 for the same application.

What It Helps Fix

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough cold operation caused by inaccurate temperature input
• Cooling fan operation that does not follow engine temperature correctly
• Fuel mixture issues related to faulty coolant temperature data
• Check engine light concerns tied to coolant temperature sensor faults

Installation Notes and Tips

Verify connector shape, terminal count, thread size, and resistance before installation. Confirm the sensor location on the engine and inspect the connector for corrosion, bent terminals, or damaged wiring before connecting the new unit. Because no wiring harness is included, reuse the existing vehicle harness and ensure the connector locks securely in place.

Quality Assurance

Dorman designs this sensor to match original fit and function on specified vehicles and to deliver dependable service in cooling-system applications. Part number 904-7257 is built for replacement use where an OE-style coolant temperature sensor is required.