Walker Engine Coolant Temperature Sensor 11-16 GM 6.6L Duramax LML ALI-AP63669 Older injectors would put out

Older injectors would put out 1

The critical pivot points are maintenance-free and extremely durable for long-lasting use

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

It includes everything necessary to replace that inconveniently located under-the-hood fuel filter with a precision-engineered fuel filter relocation kit

Walker Engine Coolant Temperature Sensor 11-16 GM 6.6L Duramax LML ALI-AP63669 Older injectors would put outIs 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.