JOYOJUMA Knock Sensor & Wiring Harness Kit for GM 4.8L–6.0L V8 — 2 Sensors + Intake Manifold Gaskets, OE Fit

JOYOJUMA's kit replaces worn knock sensors, wiring harnesses, and intake manifold gaskets for many GM 4.8L–6.0L V8 engines, restoring reliable engine knock detection and sealing.

This comprehensive replacement kit is built to fit a broad range of GM trucks and SUVs — including Chevy Suburban, Silverado, Avalanche, Tahoe, GMC Sierra, Yukon, and select Cadillacs — with engine sizes from 4.8L to 6.0L. The package groups two knock sensors, a dedicated knock-sensor harness, and two intake manifold gasket sets so you can address both sensor faults and intake sealing in one service. Components are made from corrosion-resistant materials and each sensor undergoes vibration testing to help ensure durable operation under real-world conditions.

How does this kit improve engine sensing and performance?

Replacing failed knock sensors or a damaged harness restores the engine control module’s ability to detect detonation and adjust timing appropriately. Fresh sensors and a reliable harness reduce false readings and intermittent faults that can trigger check-engine lights or degraded running behavior. The intake gaskets included also fix vacuum leaks that might affect sensor readings or idle quality.

• Two OE-fit knock sensors to match factory fitment and signal response.
• One harness designed to resist corrosion and avoid brittle breakage.
• Two intake manifold gasket sets to reseal runners and prevent leaks.
• Multiple OE reference numbers covered for easier part matching.

Which vehicles and engines are compatible with this kit?

The kit is intended for GM trucks and SUVs that use the 4.8L, 5.3L, or 6.0L V8 engines across many model years. It lists compatibility with a range of Chevy and GMC heavy-duty models and selected Cadillac and Buick applications; check your OEM reference numbers to confirm fitment before ordering. Exact fit depends on engine family and production year, so comparing part numbers ensures a correct match.

• Fits Chevy Silverado (1500/2500/3500), Suburban, Tahoe, Avalanche.
• Fits GMC Sierra (1500/2500/3500), Yukon, C3500 models noted in listing.
• Also compatible with select Cadillac and Buick GM 4.8L–6.0L engines.
• Cross-references include OE numbers such as 12601822, 12589867, 917-033, and others.

What quality and testing standards are included with JOYOJUMA parts?

Each knock sensor in the kit has been verified through accelerometer vibration testing to simulate harsh operating conditions and confirm signal reliability. The wiring harness uses corrosion-resistant materials and reinforced connectors to minimize cracking or electrical failure. Intake gaskets are manufactured to maintain proper sealing under thermal cycling common in V8 intake systems.

• 100% vibration-tested sensors to detect durability under stress.
• Corrosion-resistant harness materials for longer service life.
• Intake gaskets engineered for consistent sealing at manifold interfaces.
• Replaces multiple OE part numbers for easier retrofit.

What comes in the box and what warranty covers it?

The shipment includes two knock sensors, a single knock-sensor wiring harness, and two intake manifold gasket sets — enough to service both banks on most V8 applications covered. JOYOJUMA backs this kit with a two-year warranty; contact the seller for replacement or refund if defects appear during normal use. Keep your receipt and vehicle details handy when requesting support.

• 2 x knock sensors, 1 x knock-sensor harness, 2 x intake manifold gasket sets.
• Coverage: two-year limited warranty and customer support for exchanges/refunds.
• Designed to replace listed OE numbers for simpler installation matching.

Who is this for: This kit is intended for DIY mechanics and professional technicians working on GM 4.8L–6.0L V8 engines who need a reliable replacement for failing knock sensors, damaged harnesses, or leaking intake gaskets. It’s especially useful when an engine has a check-engine code related to knock detection or when intake sealing is suspected; the all-in-one package reduces parts hunting and downtime for common repair jobs.