Gledewen Dual Knock Sensor Kit for GM 4.8L/5.3L/6.0L — Direct-Fit Replacement with Corrosion-Resistant Wiring

Gledewen Dual Knock Sensors with Wiring Harness Kit is a direct-fit replacement system that restores knock detection and reliable signal routing for 1999–2007 GM 4.8L/5.3L/6.0L engines.

If your Chevy, GMC, Cadillac or Hummer engine has been throwing knock codes, running rough, or pulling ignition timing, a worn or damaged knock sensor or harness can be the cause. This kit pairs two calibrated knock sensors with a corrosion-resistant wiring harness built from tin-plated and solid brass terminals, designed to match factory fitment and bring back dependable vibration sensing so the engine control module can manage timing correctly.

How will this kit improve engine performance and noise?

Replacing failed knock sensors and the accompanying harness restores the ECU’s ability to detect detonation and adjust spark timing, which reduces pinging and helps maintain smooth operation. The sensors are vibration-tested to ensure they respond at the correct frequency and voltage range for GM engines.

• Two calibrated sensors tuned for GM 4.8L/5.3L/6.0L applications
• Automated data acquisition during manufacturing for consistent output
• Helps the ECU correct timing to reduce knock and engine noise

Will this fit my Chevy Silverado, Tahoe, or GMC Sierra?

The kit is engineered to be a direct-fit replacement for many late‑1990s to mid‑2000s GM trucks and SUVs. Check the full vehicle list to confirm compatibility with specific model years and engine sizes before ordering.

• Compatible with 4.8L, 5.3L and 6.0L engines (1999–2007 model years)
• Fits Silverado 1500/1500HD/2500/3500, Suburban, Tahoe, Avalanche, Sierra, Yukon, Cadillac, Hummer and others
• Replaces OE numbers: 12601822, 12589867, 10456603, 917-033 and more

What are the build and durability features of the sensors and harness?

The wiring harness uses tin-plated, solid brass terminals and corrosion-resistant materials to maintain conductivity and longevity in under‑hood conditions. Each sensor goes through accelerometer vibration testing to validate performance under real-world engine stress.

• Tin-plated and solid brass terminals for reliable conductivity
• Corrosion-resistant wire materials for extended service life
• 100% vibration testing for durability and consistent output

How easy is installation and what support comes with the kit?

The kit is designed for straightforward replacement with OE-style connectors and mounting points; installation requires basic hand tools and mechanical familiarity. Gledewen backs the kit with a 12-month warranty for replacement or refund if the sensor or harness fails.

• Direct-fit connectors and mounting to match factory layout
• Simple swap procedure—no custom wiring required
• 12-month warranty covering defects or premature failure

Who is this for? Mechanics, DIY enthusiasts and fleet technicians who service late‑1990s to mid‑2000s GM trucks and SUVs and need a reliable knock sensor solution will benefit from this kit. It’s especially useful for vehicles showing knock-related error codes, irregular engine noise, or timing issues where the original sensors or harness have failed. Choose this Gledewen kit when you want OEM-style fitment, rugged terminals, and sensors verified for vibration performance to restore proper engine knock detection.