Holstein 2KNC0025H Ignition Knock (Detonation) Sensor Harness

Ignition Knock Sensor Harness for GM Applications

Restore a secure electrical connection to the knock sensor on a wide range of GM trucks, SUVs, and performance models with this Holstein Parts ignition knock sensor harness. Part number 2KNC0025H is built for direct replacement use on many Chevrolet, GMC, Cadillac, Hummer, Buick, Pontiac, and Isuzu applications from 1998-2008.

Holstein Parts focuses on replacement electrical components for ignition and engine management systems. This harness supports clean signal transfer between the knock sensor and the engine harness, helping maintain proper detonation sensing on vehicles such as the Chevrolet Silverado, GMC Sierra, and Cadillac Escalade.

Key Features

• Holstein Parts ignition knock sensor harness
• Part number 2KNC0025H
• Replacement harness for knock sensor circuit service
• Compatible with many GM truck, SUV, and performance platforms
• Cross-references Standard Ignition PTH1 and Motorad 1EC130 for the same application

Detailed Description

This ignition knock sensor harness is used to connect the detonation sensor to the vehicle wiring system so the engine control module can monitor knock activity accurately. It is a practical replacement for worn, damaged, or intermittent harness connections on applications including Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, and Chevrolet Tahoe. If you are searching for a Holstein Parts 2KNC0025H knock sensor harness for a 2000-2006 Chevrolet Tahoe or a 1999-2007 GMC Sierra 1500, this part matches those vehicle listings.

Compatible With 1998-2008 Chevrolet Silverado, GMC Sierra, Cadillac Escalade, Hummer H2, Chevrolet Corvette, Pontiac Firebird, and related GM models listed in the fitment data.

Common Issues This Part May Address

• Broken or brittle knock sensor wiring
• Intermittent detonation sensor signal
• Corrosion at the harness connection
• Check engine light related to knock sensor circuit faults
• Rough engine operation caused by unstable sensor communication

Installation Notes and Tips

Verify connector style and routing before installation, and compare the old harness to the replacement part number 2KNC0025H. Inspect nearby wiring, terminals, and sensor mounting points for heat damage or corrosion before reconnecting the circuit. Confirm vehicle-specific fitment for your Chevrolet Silverado, GMC Sierra, or Cadillac Escalade application before service.

Quality Assurance

Holstein Parts replacement electrical components are cataloged for direct-fit service across the listed GM applications, including Chevrolet Silverado, GMC Sierra, and Cadillac Escalade platforms. Use the confirmed fitment data to match the correct year, make, and model before installation.