Holstein 2KNC0025H Ignition Knock (Detonation) Sensor Harness
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 Holstein Parts

Holstein 2KNC0025H Ignition Knock (Detonation) Sensor Harness

Brand Holstein 2KNC0025H
Product line Holstein Parts
Fits Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Pontiac · 217 vehicles

OE direct replacement. Built as an ignition knock sensor harness for straightforward replacement.

Ignition wire and cable component for dependable sensor signal routing.

Cross-references Motorad 1EC130, Power Train PTA1 and SKP SKJ72001 for the same application. See all 16.

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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Ignition Knock (Detonation) Sensor Harness options

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.

This part fits 217 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2008ChevroletSilverado 3500 HD6.0LV8Holstein Parts
2007ChevroletExpress 15005.3LV8Holstein Parts
2007ChevroletExpress 25006.0LV8Holstein Parts
2007ChevroletExpress 35006.0LV8Holstein Parts
2007ChevroletSilverado 1500——Holstein Parts
2007ChevroletSilverado 1500 HD Classic——Holstein Parts
2007ChevroletSilverado 2500 HD——Holstein Parts
2007ChevroletSilverado 2500 HD Classic——Holstein Parts
2007ChevroletSilverado 3500 Classic6.0LV8Holstein Parts
2007ChevroletSilverado 3500 HD6.0LV8Holstein Parts
2007GMCSavana 15005.3LV8Holstein Parts
2007GMCSavana 25006.0LV8Holstein Parts
2007GMCSavana 35006.0LV8Holstein Parts
2007GMCSierra 1500——Holstein Parts
2007GMCSierra 1500 HD Classic——Holstein Parts
2007GMCSierra 2500 HD——Holstein Parts
2007GMCSierra 2500 HD Classic6.0LV8Holstein Parts
2007GMCSierra 3500 Classic6.0LV8Holstein Parts
2007GMCSierra 3500 HD——Holstein Parts
2007HummerH26.0LV8Holstein Parts
2006CadillacEscalade——Holstein Parts
2006CadillacEscalade ESV——Holstein Parts
2006CadillacEscalade EXT——Holstein Parts
2006ChevroletAvalanche 1500——Holstein Parts
2006ChevroletAvalanche 2500——Holstein Parts
2006ChevroletExpress 15005.3LV8Holstein Parts
2006ChevroletExpress 25006.0LV8Holstein Parts
2006ChevroletExpress 35006.0LV8Holstein Parts
2006ChevroletSilverado 1500——Holstein Parts
2006ChevroletSilverado 1500 HD——Holstein Parts
2006ChevroletSilverado 2500——Holstein Parts
2006ChevroletSilverado 2500 HD——Holstein Parts
2006ChevroletSilverado 3500——Holstein Parts
2006ChevroletSuburban 15005.3LV8Holstein Parts
2006ChevroletSuburban 2500——Holstein Parts
2006ChevroletTahoe——Holstein Parts
2006GMCSavana 15005.3LV8Holstein Parts
2006GMCSavana 25006.0LV8Holstein Parts
2006GMCSavana 35006.0LV8Holstein Parts
2006GMCSierra 1500——Holstein Parts
2006GMCSierra 1500 HD——Holstein Parts
2006GMCSierra 2500 HD——Holstein Parts
2006GMCSierra 3500——Holstein Parts
2006GMCYukon——Holstein Parts
2006GMCYukon XL 1500——Holstein Parts
2006GMCYukon XL 2500——Holstein Parts
2006HummerH26.0LV8Holstein Parts
2005CadillacCTS5.7LV8Holstein Parts
2005CadillacEscalade——Holstein Parts
2005CadillacEscalade ESV——Holstein Parts
2005CadillacEscalade EXT——Holstein Parts
2005ChevroletAvalanche 1500——Holstein Parts
2005ChevroletAvalanche 2500——Holstein Parts
2005ChevroletExpress 15005.3LV8Holstein Parts
2005ChevroletExpress 25006.0LV8Holstein Parts
2005ChevroletExpress 35006.0LV8Holstein Parts
2005ChevroletSilverado 1500——Holstein Parts
2005ChevroletSilverado 1500 HD——Holstein Parts
2005ChevroletSilverado 2500——Holstein Parts
2005ChevroletSilverado 2500 HD——Holstein Parts
2005ChevroletSilverado 3500——Holstein Parts
2005ChevroletSonora——Holstein Parts
2005ChevroletSSR——Holstein Parts
2005ChevroletSuburban 15005.3LV8Holstein Parts
2005ChevroletSuburban 2500——Holstein Parts
2005ChevroletTahoe——Holstein Parts
2005ChevroletTrailblazer EXT5.3LV8Holstein Parts
2005GMCEnvoy5.3LV8Holstein Parts
2005GMCEnvoy XL5.3LV8Holstein Parts
2005GMCEnvoy XUV5.3LV8Holstein Parts
2005GMCSavana 15005.3LV8Holstein Parts
2005GMCSavana 25006.0LV8Holstein Parts
2005GMCSavana 35006.0LV8Holstein Parts
2005GMCSierra 1500——Holstein Parts
2005GMCSierra 1500 HD——Holstein Parts
2005GMCSierra 2500 HD——Holstein Parts
2005GMCSierra 3500——Holstein Parts
2005GMCYukon——Holstein Parts
2005GMCYukon XL 1500——Holstein Parts
2005GMCYukon XL 2500——Holstein Parts
2005HummerH26.0LV8Holstein Parts
2005IsuzuAscender5.3LV8Holstein Parts
2004BuickRainier5.3LV8Holstein Parts
2004CadillacCTS5.7LV8Holstein Parts
2004CadillacEscalade——Holstein Parts
2004CadillacEscalade ESV——Holstein Parts
2004CadillacEscalade EXT——Holstein Parts
2004ChevroletAvalanche 1500——Holstein Parts
2004ChevroletAvalanche 2500——Holstein Parts
2004ChevroletCorvette——Holstein Parts
2004ChevroletExpress 15005.3LV8Holstein Parts
2004ChevroletExpress 25006.0LV8Holstein Parts
2004ChevroletExpress 35006.0LV8Holstein Parts
2004ChevroletSilverado 1500——Holstein Parts
2004ChevroletSilverado 2500——Holstein Parts
2004ChevroletSilverado 2500 HD——Holstein Parts
2004ChevroletSilverado 3500——Holstein Parts
2004ChevroletSonora——Holstein Parts
2004ChevroletSSR——Holstein Parts
2004ChevroletSuburban 15005.3LV8Holstein Parts
2004ChevroletSuburban 2500——Holstein Parts
2004ChevroletTahoe——Holstein Parts
2004ChevroletTrailblazer EXT5.3LV8Holstein Parts
2004GMCEnvoy XL5.3LV8Holstein Parts
2004GMCEnvoy XUV5.3LV8Holstein Parts
2004GMCSavana 15005.3LV8Holstein Parts
2004GMCSavana 25006.0LV8Holstein Parts
2004GMCSavana 35006.0LV8Holstein Parts
2004GMCSierra 1500——Holstein Parts
2004GMCSierra 2500——Holstein Parts
2004GMCSierra 2500 HD——Holstein Parts
2004GMCSierra 3500——Holstein Parts
2004GMCYukon——Holstein Parts
2004GMCYukon XL 1500——Holstein Parts
2004GMCYukon XL 2500——Holstein Parts
2004HummerH26.0LV8Holstein Parts
2004IsuzuAscender——Holstein Parts
2004PontiacGTO——Holstein Parts
2003CadillacEscalade——Holstein Parts
2003CadillacEscalade ESV——Holstein Parts
2003CadillacEscalade EXT——Holstein Parts
2003ChevroletAvalanche 1500——Holstein Parts
2003ChevroletAvalanche 2500——Holstein Parts
2003ChevroletCorvette——Holstein Parts
2003ChevroletExpress 15005.3LV8Holstein Parts
2003ChevroletExpress 25006.0LV8Holstein Parts
2003ChevroletExpress 35006.0LV8Holstein Parts
2003ChevroletSilverado 1500——Holstein Parts
2003ChevroletSilverado 1500 HD——Holstein Parts
2003ChevroletSilverado 2500——Holstein Parts
2003ChevroletSilverado 2500 HD——Holstein Parts
2003ChevroletSilverado 3500——Holstein Parts
2003ChevroletSonora——Holstein Parts
2003ChevroletSSR——Holstein Parts
2003ChevroletSuburban 15005.3LV8Holstein Parts
2003ChevroletSuburban 2500——Holstein Parts
2003ChevroletTahoe——Holstein Parts
2003ChevroletTrailblazer EXT5.3LV8Holstein Parts
2003GMCEnvoy XL5.3LV8Holstein Parts
2003GMCSavana 15005.3LV8Holstein Parts
2003GMCSavana 25006.0LV8Holstein Parts
2003GMCSavana 35006.0LV8Holstein Parts
2003GMCSierra 1500——Holstein Parts
2003GMCSierra 1500 HD——Holstein Parts
2003GMCSierra 2500——Holstein Parts
2003GMCSierra 2500 HD——Holstein Parts
2003GMCSierra 3500——Holstein Parts
2003GMCYukon——Holstein Parts
2003GMCYukon XL 1500——Holstein Parts
2003GMCYukon XL 2500——Holstein Parts
2003HummerH26.0LV8Holstein Parts
2003IsuzuAscender5.3LV8Holstein Parts
2002CadillacEscalade——Holstein Parts
2002CadillacEscalade EXT——Holstein Parts
2002ChevroletAvalanche 1500——Holstein Parts
2002ChevroletAvalanche 2500——Holstein Parts
2002ChevroletCamaro5.7LV8Holstein Parts
2002ChevroletCorvette——Holstein Parts
2002ChevroletSilverado 1500——Holstein Parts
2002ChevroletSilverado 1500 HD——Holstein Parts
2002ChevroletSilverado 2500——Holstein Parts
2002ChevroletSilverado 2500 HD——Holstein Parts
2002ChevroletSilverado 3500——Holstein Parts
2002ChevroletSuburban 15005.3LV8Holstein Parts
2002ChevroletSuburban 2500——Holstein Parts
2002ChevroletTahoe——Holstein Parts
2002GMCSierra 1500——Holstein Parts
2002GMCSierra 1500 HD——Holstein Parts
2002GMCSierra 2500——Holstein Parts
2002GMCSierra 2500 HD——Holstein Parts
2002GMCSierra 3500——Holstein Parts
2002GMCYukon——Holstein Parts
2002GMCYukon XL 1500——Holstein Parts
2002GMCYukon XL 2500——Holstein Parts
2002PontiacFirebird5.7LV8Holstein Parts
2001ChevroletC1500——Holstein Parts
2001ChevroletCamaro5.7LV8Holstein Parts
2001ChevroletCorvette——Holstein Parts
2001ChevroletSilverado 1500——Holstein Parts
2001ChevroletSilverado 1500 HD——Holstein Parts
2001ChevroletSilverado 2500——Holstein Parts
2001ChevroletSilverado 2500 HD——Holstein Parts
2001ChevroletSilverado 3500——Holstein Parts
2001ChevroletSuburban 15005.3LV8Holstein Parts
2001ChevroletSuburban 2500——Holstein Parts
2001ChevroletTahoe——Holstein Parts
2001GMCSierra 1500——Holstein Parts
2001GMCSierra 1500 HD——Holstein Parts
2001GMCSierra 2500——Holstein Parts
2001GMCSierra 2500 HD——Holstein Parts
2001GMCSierra 3500——Holstein Parts
2001GMCYukon——Holstein Parts
2001GMCYukon XL 1500——Holstein Parts
2001GMCYukon XL 2500——Holstein Parts
2001PontiacFirebird5.7LV8Holstein Parts
2000ChevroletCamaro5.7LV8Holstein Parts
2000ChevroletCorvette——Holstein Parts
2000ChevroletSilverado 1500——Holstein Parts
2000ChevroletSilverado 2500——Holstein Parts
2000ChevroletSuburban 15005.3LV8Holstein Parts
2000ChevroletSuburban 2500——Holstein Parts
2000ChevroletTahoe——Holstein Parts
2000GMCSierra 1500——Holstein Parts
2000GMCSierra 2500——Holstein Parts
2000GMCYukon5.3LV8Holstein Parts
2000GMCYukon XL 1500——Holstein Parts
2000GMCYukon XL 2500——Holstein Parts
2000PontiacFirebird5.7LV8Holstein Parts
1999ChevroletCamaro5.7LV8Holstein Parts
1999ChevroletCorvette——Holstein Parts
1999ChevroletSilverado 1500——Holstein Parts
1999ChevroletSilverado 2500——Holstein Parts
1999GMCSierra 1500——Holstein Parts
1999GMCSierra 2500——Holstein Parts
1999PontiacFirebird5.7LV8Holstein Parts
1998ChevroletCorvette——Holstein Parts
1998PontiacFirebird5.7LV8Holstein Parts
Directly replaces or cross-references 16 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Motorad — 1EC130Power Train — PTA1SKP — SKJ72001Standard Ignition — PTH11P2069143761002891703373067781257586912597415126018221532092615372170JAC1076TRH102