Bosch Engine Coolant Temperature Sensor 0280130122 for GM & Saab — OEM Fit, Durable Vibration-Resistant

This Bosch OEM coolant temperature sensor monitors engine coolant temperature and supplies accurate data to the engine control unit (ECU). Built to withstand vibration and a broad temperature range, it replaces or upgrades factory sensors on a range of GM and Saab vehicles. The sensor helps the vehicle’s computer decide fuel trim, ignition timing, and cooling fan operation without offering medical or absolute operational guarantees.

How does this sensor interact with the engine control unit?

The sensor measures coolant temperature and converts it into an electrical signal the ECU uses to adjust engine parameters. Reliable readings help the ECU maintain proper fuel mixture and ignition timing under changing conditions.

• Direct electrical resistance output matched to OEM specifications
• Consistent signal for smoother warm-up and idle control
• Works with factory wiring and connectors for plug-and-play replacement

What makes Bosch’s design durable for underhood use?

Bosch designs this sensor to resist heavy vibration and extreme temperatures so it continues to function in the engine bay. Components and seals are chosen for long-term stability across typical operating ranges.

• Temperature tolerance from -40°F to +260°F for varied climates
• Robust housing and connector to withstand engine vibration
• OE or better manufacturing quality for reliable replacement life

Will this sensor fit my vehicle and how do I confirm compatibility?

This Bosch part is listed for many GM and Saab models but fitment depends on engine and model year. Always verify vehicle fitment using the site fit checker or by matching part numbers before ordering.

• Common fits include Buick Enclave, LaCrosse, Rendezvous, and more
• Also listed for Cadillac CTS/SRX, Chevrolet Malibu/Camaro/Traverse, and GMC Acadia/Savana/Sierra
• Check engine-specific details and the vehicle’s OEM part number to confirm compatibility

How does installing a quality coolant temperature sensor help everyday driving?

A correct-reading sensor supports smoother starts, efficient fuel delivery, and proper cooling fan operation, which contributes to consistent vehicle behavior. It does not guarantee repairs to unrelated systems but is a key input for normal engine management.

• Improves cold-start performance by informing fuel enrichment strategies
• Helps prevent unnecessary cooling fan cycling with accurate temp data
• Supports engine efficiency and drivability by providing steady sensor output

Who is this for? The BOSCH 0280130122 coolant temperature sensor is intended for owners and technicians replacing a failed or aging OEM sensor on compatible Buick, Cadillac, Chevrolet, GMC, Pontiac, Saab, and Saturn vehicles. It suits anyone who wants an OE-quality, direct-fit replacement that meets strict temperature and vibration demands without aftermarket compromises. Verify fitment for your engine and model year before purchase.