Walker Engine Coolant Temperature Sensor 11-16 GM 6.6L Duramax LML ALI-AP63669 5″ systems

5″ systems

The primary improvements over the OEM knuckle include a flat-top pad for a bolt-on steering arm

The 2011-16 Fords spoiled us

Older injectors would put out 1

The tubular rear frame crossmember exits through the outside of the frame serving as the perfect location to which to weld our replacement upper shock mounts

Walker Engine Coolant Temperature Sensor 11-16 GM 6.6L Duramax LML ALI-AP63669 5″ systemsIs your truck experiencing hard starts, poor fuel economy, or erratic temperature readings? The Walker Engine Coolant Temperature (ECT) Sensor is designed to restore accurate coolant temperature data, enabling your engine to run efficiently and reliably. This sensor plays a critical role in how your ECM adjusts fuel delivery, timing, and overall engine performance. When it fails, you can see everything from rough idle to overheating concerns.