JOYOJUMA Knock Sensor Wiring Harness Kit for GM 4.8L/5.3L/6.0L — 2 Knock Sensors + Intake Manifold Gaskets, OE-fit

Complete replacement kit with two knock sensors, one harness, and intake manifold gaskets built for GM 4.8L, 5.3L and 6.0L engines used in Chevy, GMC, Cadillac and related models.

This JOYOJUMA kit groups the wiring harness and two knock sensors with a set of intake manifold gaskets to simplify repairs on many General Motors V8 engines. Designed as a direct-fit aftermarket service kit, it matches common OE part references and is aimed at restoring sensor function and sealing the intake manifold. The components are pre-tested for vibration resistance and corrosion protection so they’re ready for shop or home installation.

Which vehicles and engines does this kit fit?

The kit is compatible with GM trucks and SUVs equipped with 4.8L, 5.3L and 6.0L engines. Typical fitments include late 1990s–2000s Chevy Silverado, Suburban, Tahoe, Avalanche and GMC Sierra and Yukon lines, plus many Cadillac models using the same engine families.

• Covers Chevy Silverado 1500/2500/3500 and GMC Sierra 1500/2500/3500 model years commonly listed
• Compatible with Chevy Suburban, Tahoe, Avalanche and GMC Yukon applications
• Works across GM brands including Buick, Pontiac and Cadillac where these engines are used
• Replaces OE numbers like 12601822, 12589867 and related references for simple cross-checking

What exactly is included in the JOYOJUMA kit?

Each package contains two knock sensors, one pre-assembled knock sensor wiring harness and a set of intake manifold gaskets. The set is intended to replace the common failure items that affect engine knock sensing and intake sealing in a single service operation.

• 2 x knock sensors for both bank placements
• 1 x knock sensor harness with corrosion-resistant connectors
• 2 x intake manifold gasket pieces to reseal the manifold
• Boxed and ready for installation with OEM-style fitment points

How durable and reliable are the parts in this kit?

Parts use corrosion-resistant materials and the knock sensors have been vibration-tested to simulate engine conditions. The harness is reinforced to resist cracking and terminal corrosion, which helps extend service life compared with untreated wiring.

• Accelerometer vibration testing performed on sensors for durability
• Harness with protective sleeving to reduce abrasion and moisture intrusion
• High-quality gasket material designed to maintain intake sealing under heat cycling
• Manufactured to replace known OE part numbers for accurate fit and function

Do I get any support or warranty with this purchase?

JOYOJUMA backs the kit with a 2-year warranty against defects in materials and workmanship. If you encounter fitment or quality issues during that period, the brand offers exchange or refund support through their customer service channels.

• 2-year limited warranty for free exchange or refund options
• Customer service available for fitment guidance and replacement help
• OE reference numbers listed to help verify compatibility before installation

Who is this for: This kit is for technicians, DIY mechanics and fleet owners who need a direct-fit replacement for failed knock sensors, corroded harnesses or leaking intake manifold gaskets on GM V8 engines. It’s suited to anyone repairing late-model Silverado, Sierra, Suburban, Tahoe, Yukon, Avalanche and similar vehicles that use 4.8L, 5.3L or 6.0L engine families and who want a single package that addresses both sensor and intake sealing service items.