Gledewen Dual Knock Sensor Kit for GM 5.3L/4.8L/6.0L V8 — Wiring Harness, OE-fit Pre-calibrated Sensors

If your GM truck or SUV is showing signs of ignition knock, reduced performance, or diagnostic trouble codes related to knock detection, replacing worn sensors and the associated wiring harness is a common and effective repair. This kit supplies two pre-calibrated sensors plus a corrosion-resistant harness engineered to meet OE fit and signal expectations for late-1990s through mid-2000s Chevrolet, GMC, Cadillac, Hummer and related models.

How does this kit restore engine performance?

The sensors convert vibration from combustion events into voltage signals the engine control module uses to adjust timing. Worn or damaged sensors, or corroded harness connections, can produce weak or noisy signals that prevent correct timing adjustments. Replacing both sensors and the wiring harness returns the system to reliable signal levels so the PCM can manage knock control properly.

• Includes two calibrated knock sensors matched for GM V8 engines.
• Wiring harness uses tin-plated and solid-brass terminals for strong conductivity.
• Factory-style connector shapes and lengths for direct installation.
• 100% accelerometer vibration testing ensures signal durability under stress.

Will these sensors fit my vehicle?

This kit supports many common GM platforms equipped with 4.8L, 5.3L and 6.0L engines produced between about 1999 and 2007. It is intended as a replacement for specific OE numbers, so confirming your vehicle’s original part number or fitment table is recommended before ordering.

• Typical fits: Chevy Silverado, Suburban, Tahoe, Avalanche (1999–2007 ranges).
• Also fits: GMC Sierra, Yukon/Yukon XL, Cadillac models, Hummer, Isuzu and other GM derivatives.
• Replaces OE codes: 12601822, 12589867, 10456603, 8104566030, 12597415, 15372170, 917-033, 2133521.
• Compatible with 4.8L, 5.3L and 6.0L V8 engines—verify engine code and year.

What materials and tests prove long-term reliability?

The harness and sensors are built to resist corrosion and to maintain clean electrical transfer under vibration and heat. Manufacturing includes continuous monitoring of sensor output during production and shake testing that simulates real-world engine vibration, reducing the chance of early failure.

• Sensor outputs monitored by automated data acquisition during manufacture.
• Tin-plated and solid-brass terminals improve conductivity and corrosion resistance.
• 100% accelerometer vibration testing for endurance in harsh environments.
• High-grade materials chosen for longevity in engine bay conditions.

How does installation and support work if I have issues?

The kit is designed for straightforward replacement where OEM connectors and mounting locations are retained. If you encounter fitment or functional problems, the product is backed by a 12-month warranty covering failure or defects, with replacement or refund options available through the seller.

• Direct-fit connectors and mounting points minimize modification needs.
• Clear replacement OE numbers help confirm compatibility before purchase.
• 12-month warranty for replacement or refund on faults or failure.
• Recommended: inspect harness routing and torque sensor mounting bolts per OEM specs during install.

Who is this for: This Gledewen kit is aimed at DIY mechanics and professional technicians servicing late-1990s to mid-2000s GM V8 trucks and SUVs that need reliable knock detection restored. It’s appropriate when diagnostic trouble codes indicate knock sensor faults, when sensors have been contaminated or damaged, or when a compromised wiring harness is suspected. Verify year, engine displacement and original part numbers before ordering to ensure a correct, hassle-free replacement.