Holstein 2CTS0045 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for GM Applications

Holstein Parts 2CTS0045 is an engine coolant temperature sensor for select GM, Isuzu, Buick, Saab, Chevrolet, GMC, and Hummer applications. It provides the temperature signal used by the engine control system to monitor coolant temperature and manage engine operation.

Key Features

• Engine coolant temperature sensor for temperature monitoring
• Holstein Parts product line replacement for select GM-platform vehicles
• Direct-fit application coverage for multiple Chevrolet Colorado and GMC Canyon model years
• Cross-references Motorad 1TS1230 and NTK EF0174 for the same application
• Part number 2CTS0045 for catalog lookup and fitment verification

Detailed Description

Holstein Parts 2CTS0045 is an engine coolant temperature sensor used to report coolant temperature to the vehicle’s engine management system. Accurate temperature input is important for fuel control, idle strategy, and cooling-system monitoring. This part number 2CTS0045 covers a broad range of GM-based vehicles, including Chevrolet Colorado, GMC Canyon, Hummer H3, Hummer H3T, Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, Isuzu i-290, Isuzu i-370, Buick Rainier, Saab 9-7x, Chevrolet Trailblazer EXT, GMC Envoy XL, Isuzu i-280, and Isuzu i-350.

Holstein Parts is the brand line identified for this sensor, and this listing is focused on OE-style replacement coverage for the specified applications. If you are searching for an engine coolant temperature sensor for a 2004-2012 Chevrolet Colorado or a 2004-2012 GMC Canyon, 2CTS0045 is the relevant part number to verify against your original sensor.

Common Reasons for Replacement

• Temperature gauge readings that are inaccurate or unstable
• Check engine light related to coolant temperature signal faults
• Hard starting or rough running when the engine is cold
• Cooling fan operation that does not match engine temperature
• Incorrect fuel mixture control caused by a faulty coolant temperature input

Installation Notes and Tips

Confirm the connector style and sensor location on the vehicle before installation. Compare the original sensor to Holstein Parts 2CTS0045 and verify fitment by year, make, and model before service. After installation, check for coolant leaks and clear any stored diagnostic trouble codes if required by the repair procedure.

Quality Assurance

Use this sensor as a direct replacement for the listed applications and verify all vehicle details before ordering. This part cross-references Motorad 1TS1230 and NTK EF0174 for the same application.