JOYOJUMA Knock Sensor Kit for Chevy GMC 4.8/5.3/6.0L — 2 Sensors & Wiring Harness, OE Fit, Corrosion-Resist

JOYOJUMA Knock Sensors Wiring Harness Kit is a complete replacement set of two knock sensors plus a harness engineered to restore proper engine knock detection on GM 4.8L, 5.3L and 6.0L vehicles.

If your Chevy or GMC is showing symptoms related to faulty knock sensing—check-engine lights, rough idle, or reduced performance—this kit supplies the matched sensors and the wiring harness needed to replace worn OE components. The set is manufactured to match multiple GM OE numbers (including 12601822, 12589867, and 10456603) and is built to resist vibration and corrosion for longer service life. It fits a broad range of full‑size trucks and SUVs such as Silverado, Sierra, Suburban, Tahoe, Yukon, Avalanche and many Cadillac and Hummer models that use the 4.8L, 5.3L or 6.0L V8 platforms.

Which vehicles and engine sizes does this kit fit?

This kit is compatible with GM small‑block V8 engines commonly found across Chevy, GMC, Cadillac and some Hummer models. It covers engines with 4.8L, 5.3L and 6.0L displacements and maps to multiple OE part numbers for broad fitment.

• Fits Chevy Silverado and GMC Sierra 1500/2500/3500 model years listed in product notes.
• Compatible with Suburban, Tahoe, Yukon, Avalanche, and some Cadillac/GMC platforms.
• Replaces OE numbers: 12601822, 12589867, 10456603 and others for straightforward cross-reference.

How durable and reliable is the harness and sensor assembly?

The harness and sensors are designed to withstand vibration and environmental exposure typical of engine bays. Materials resist corrosion, and the sensors undergo vibration testing to ensure consistent performance when installed.

• Robust wire jacket and connectors reduce risk of breakage and moisture intrusion.
• Sensors are vibration-tested for durability under harsh conditions.
• Connectors match OE fit and locking features for secure installation.

What’s included in the package and what does installation require?

This kit contains two knock sensors and one dedicated harness so you replace all related components at once for a complete repair. Installation requires basic mechanical tools and moderate automotive experience; accessing sensors typically involves reaching the intake manifold area.

• Included: 2x knock sensors and 1x knock sensor harness for full replacement.
• Works with specific GM models (see fitment list) — verify OE cross‑reference before ordering.
• Installation note: may require removal of intake components for access depending on engine model.

Is there any warranty or post‑purchase support?

JOYOJUMA backs the kit with a limited warranty to protect against manufacturing defects and offers responsive customer support for exchange or refund requests. If a component fails under normal use, customer service provides assistance to resolve the issue.

• 14‑month limited warranty for repair, exchange or refund.
• Customer support available for fitment questions and troubleshooting.
• Replace OE part numbers included to simplify cross-referencing during claims.

Who is this for: This wiring harness and knock sensor set is aimed at DIY mechanics and professional technicians repairing GM 4.8L/5.3L/6.0L engines who need a reliable, OE‑compatible replacement. It’s a practical choice when replacing failed sensors or worn wiring on Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche and other compatible GM models, especially when you prefer a complete kit that reduces repeated disassembly and ensures matched components.