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Home > Chevy > Silverado 1500 > Knock Sensor > 2001-2005 Chevy Silverado 1500 Engine Knock Sensor & Harness Kit for V8 4.8L (Wells)

2001 - 2005 Chevy Silverado 1500 Engine Knock Sensor & Harness Kit for V8 4.8L (Wells)
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2001 - 2005 Chevy Silverado 1500 Engine Knock Sensor & Harness Kit for V8 4.8L (Wells)


In Stock (Ships same day for orders placed by 3 PM ET)

List Price:$276.05
Our Price: $140.45
 (You Save $135.60)

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Part Number: 1AEEK00327

Welcome Message from 1A Auto

A knock sensor is like a small electronic microphone that is usually attached to the engine block and listens for a couple of things that a engine might do. One thing it listens for is pre-ignition or knocking inside the engine usually caused by a few issues including dirty gas, wrong engine timing low octane fuel, wrong air / fuel mixture, and also by the wrong spark plugs. It also listens for engine run on which happens when the vehicle is turned off, but tries to keep running until it stalls. Once a noise is detected, the knock sensor sends a signal to the cars computer which in turn will retard the timing at 2 degree intervals until it corrects the issue. If the knock sensor fails, it can seriously damage the engine, as continuous pre-ignition could cause melting or fractures in the pistons just to name a few.


  • Brand New Wells Knock Sensor with Dual Connector Harness
  • Replaces dealer part numbers: 10456603, 12589867, 12601822, 8104566030
  • Includes Grommets
  • Built to strict quality control standards
  • Sensor Mounting Type: Screw-In
  • Sensor Number of Terminals: (1)
  • Direct replacement
  • Built to strict quality control standards

This engine knock sensor & harness kit makes a great replacement and has good cost savings over a dealer unit.

1 Year Warranty

This item is backed by a 1 Year Manufacturers Warranty. In the event this item should fail during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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