CHENHO Dual Knock Sensor Kit for GM 4.8L/5.3L/6.0L – 2 Sensors, Wiring Harness & Intake Gaskets, OE Fit

When engine knock sensors or intake gaskets wear out, drivability, timing control, and check-engine warnings can follow. This CHENHO Dual Knock Sensor Kit bundles matched sensors, a corrosion-resistant wiring harness, and durable rubber intake manifold gaskets so you replace all common failure points at once. The kit is produced to match OE fitment for many GM trucks and SUVs with 4.8L, 5.3L, and 6.0L engines from roughly 1999–2007, and it includes a 24-month warranty for added confidence.

Which vehicles and engines will this kit fit?

This kit is designed as a direct replacement for GM 4.8L, 5.3L, and 6.0L engines used in Chevy, GMC, Cadillac and related models from the late 1990s to the mid-2000s. It covers common applications where the factory part numbers listed are used, but you should always confirm engine displacement and production year before purchasing.

• Fits Chevy Silverado and Suburban, Tahoe models (1999–2007 ranges covering 4.8L/5.3L/6.0L)
• Fits GMC Sierra and Yukon families for the listed engine sizes and years
• Compatible with Cadillac Escalade, Hummer H2 and some Isuzu i-Series models using the same OE numbers
• Replaces OE numbers such as 12601822, 12589867, 2133521, 89060413 and others

How does the harness and sensor quality reduce false codes?

CHENHO sensors are endurance-tested using accelerometer vibration checks to ensure accurate knock sensing under real-world engine vibration. The harness uses tin-plated solid brass terminals to maintain conductivity and resist corrosion, lowering the chance of intermittent signals that trigger false knock warnings.

• Accelerometer-tested sensors for consistent vibration response
• Tin-plated solid brass terminals for improved electrical contact and corrosion resistance
• Matched sensor and harness combination to preserve factory signal characteristics
• Designed to minimize spurious knocks and reduce unnecessary diagnostic time

What comes in the box and is installation straightforward?

The kit ships with two knock sensors, one sensor wiring harness, and two intake manifold gasket sets — everything commonly replaced together when addressing knock-related issues. Installation is intended to be bolt-on for compatible engines and can be completed by a competent home mechanic or professional, using basic hand tools and following factory torque specs.

• Included: 2 knock sensors, 1 harness, 2 intake manifold gasket sets
• All parts engineered for direct-fit replacement of listed OE references
• Commonly requires removal of intake components for sensor access
• Follow OEM procedures for sensor torque and connector seating to avoid issues

What warranty and support come with this purchase?

CHENHO backs this kit with a 24-month limited warranty that covers manufacturing defects and non-functioning components. If a part fails under normal use, you can request a replacement or refund through the vendor’s support channels, simplifying post-sale service.

• 24-month warranty covering defects and performance failures
• Option for replacement or refund if parts do not meet expectations
• Customer support available for fitment and troubleshooting guidance

Who is this for: This kit is aimed at owners and technicians working on GM 4.8L/5.3L/6.0L engines who need a complete, OE-replacement solution for knock sensing and intake manifold sealing. It suits anyone replacing both sensors and gaskets at once to avoid repeat labor, restore reliable knock detection, and maintain factory engine control behavior.