LS Gen 3 Knock Sensor Wire Extension Harness 36”

LS Gen 3 Knock Sensor Wire Extension Harness 36”

Marsoni

M251S

$43.99

Get it in 3 business days with 1 day shipping. Friday, May 29

LS Gen 3 Knock Sensor Wire Extension Harness 36”LS Gen III Knock Sensor Extension Harness Extends Gen III knock sensor connector 36 inches Sealed, crimped and assembled in Wichita Kansas, with USA made, OEM grade, TXL wire Every assembly is individually hand tested to ensure it exceeds OEM standards Compatible with: All Gen III harnesses, Gen III knock sensors Fits engine RPO codes: LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 Includes: 1 36" extension harness Assembled using OEM tooling, compatible with

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I have an older truck with badly oxidized headlights. I saw this product advertised and decided to give it a try. It was amazing how easy it was to do. 3 step process and the most remarkable results! I had a question regarding the process, called the number on the QR code and spoke to a person! OhJoy! More than helpful, put a whole new meaning to "service after the sale"I highly recommend this product and this company!

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Reviewed in the United States on September 2, 2025

Verified Purchase

Thomas Clauser

New York, US

★★★★★ 3

Not quite what I expected

Great price but the results, though they did improve the clarity, it was not the full results I HAD EXPECTED.. The foiled packages that had the oxidizer removal and ceramic clear coat were nearly dry when I opened them. They should be made more wet when sealed and possibly better foil paqckaging.

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Reviewed in the United States on March 24, 2026

Verified Purchase

victor

Alexandria, US

★★★★★ 1

Ruined my headlights! Big waste of money!

I decided to try this instead of soda bicarbonate and toothpaste to see if if would be oxidation cleared for longer. Big mistake, it made my headlights completely hazed making it even worst. Don’t waste your money on this or anything else. Soda bicarbonate and toothpaste is better and you can seal it with a lacquer or sealer. Big waste of money. Hopeflly I can fix them…😡

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Reviewed in the United States on February 5, 2025