LS Gen 4 & LT Gen 5 Knock Sensor Wire Extension Harness 36”

LS Gen 4 & LT Gen 5 Knock Sensor Wire Extension Harness 36”

Marsoni

M251S

$36.99

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

LS Gen 4 & LT Gen 5 Knock Sensor Wire Extension Harness 36”Gen 4 Gen 5 Knock Sensor Extension Harness 36" Compact Extension Harness for Relocated Knock Sensor Setups This 36" knock sensor extension reconnects Gen 4 or Gen 5 sensors to the main harness when sensors are repositioned during engine builds. Uses OEM spec connectors and is fully plug and play. Extends knock sensor leads by 36" Supports relocated knock sensors on Gen 4 LS and Gen 5 LT engines OEM style terminals ensure proper signal and fit

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Your LS Gen 4 & LT Gen 5 Knock Sensor Wire Extension Harness 36” orders ship within 1-2 business days.

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Standard: 3-7 business days
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.
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I am extremely satisfied with this product! It worked even better than I expected. The plastic on my car looks like new again—deep, rich color and a nice clean finish. The application process was simple and quick, and a little product goes a long way. I also love how long-lasting the results are. After several washes, it still looks great and provides solid protection. Definitely a high-quality product that delivers on its promises. I highly recommend it 100% to anyone looking to restore and protect their car’s plastic surfaces!

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Reviewed in the United States on April 13, 2026