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If your check engine light is on and pointing to a knock sensor circuit issue on your 2000-2006 Chevy Tahoe, GMC Yukon, or similar GM truck with the 4.8L or 5.3L engine, this might be the fix.

This is a brand new OEM knock sensor harness.

It's the wiring that connects the sensors, and over time these can get brittle or damaged.

It replaces a bunch of part numbers including 10456603, 12589867, and 12601822.

It's a direct, factory-style replacement.

Don't mess with jury-rigged wiring—get this genuine harness, plug it in, and get that code cleared.

A small part that makes a big difference in engine performance.


4 out of 5