Beck/Arnley Engine Coolant Temperature Sensor 158-0629 — OE-fit, Corrosion-Resistant

The Beck/Arnley 158-0629 Engine Coolant Temperature Sensor is a direct-fit replacement sensor that delivers OE-matching form, fit and function to reliably report coolant temperature to your vehicle’s ECU.

When your vehicle’s cooling system needs accurate temperature feedback, the sensor you install matters. Beck/Arnley sources components to meet foreign nameplate OE specifications so this unit integrates with the vehicle wiring, connectors and engine controls. Built with corrosion-resistant terminals and coatings, the 158-0629 is engineered to survive the high-heat, chemically aggressive environment of the engine compartment while providing stable signals to the ECU.

How does this sensor ensure accurate temperature readings?

The 158-0629 is manufactured to precise tolerances so its temperature-dependent resistance characteristics match the original equipment curve. That consistency helps the ECU interpret coolant temperature correctly for fuel delivery, ignition timing adjustments and fan control logic.

• Precision-molded sensing element for predictable resistance change
• Calibrated to OE response specifications for reliable ECU input
• Stable electrical output across normal operating ranges

Will this part fit my vehicle and install easily?

Beck/Arnley designs this sensor to be application-specific, matching the original sensor’s thread, length and connector style so it installs without modification. That means a straightforward replacement using standard hand tools and the original wiring harness.

• Application-specific design for correct mechanical fit
• Compatible connector terminals that mate with factory plugs
• No custom wiring or adapters required for proper installation

How durable is the 158-0629 in a harsh engine environment?

This sensor incorporates corrosion-resistant terminals and protective coatings to resist coolant additives, road salts and temperature cycles. The housing and seals are chosen to withstand vibration and thermal shock typical of under-hood service.

• Corrosion-resistant electrical terminals extend service life
• Protective coatings guard against moisture and chemical attack
• Robust sealing and housing materials for heat and vibration resistance

What benefits should I expect after installing this replacement sensor?

Replacing a failing temperature sensor with the 158-0629 restores accurate coolant reporting to the ECU, which can improve idle stability, temperature gauge accuracy and proper fan engagement. Because it matches OE specifications, you retain original system behavior without diagnostic conflicts.

• More accurate temperature readings for ECU-dependent systems
• Reduced risk of false engine management codes related to sensor mismatch
• Longer service life thanks to corrosion-resistant construction

Who is this for: The Beck/Arnley 158-0629 is aimed at DIY mechanics, independent technicians and fleet managers who need a dependable, OE-spec coolant temperature sensor replacement. It’s ideal for anyone seeking a straightforward swap that preserves factory performance and avoids electrical or fitment problems often seen with generic, non-specific alternatives.