LS Gen 4 & LT Knock Sensor Wire Extension Harness 12”

LS Gen 4 & LT Knock Sensor Wire Extension Harness 12”

Marsoni

M251S

$53.00

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

LS Gen 4 & LT Knock Sensor Wire Extension Harness 12”Gen 4 Gen 5 Knock Sensor Extension Harness 12" Compact Extension Harness for Relocated Knock Sensor Setups This 12" 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 12" Supports relocated knock sensors on Gen 4 and Gen 5 LS engines OEM style terminals ensure proper signal and fit Assembled

Easy Shipping

Quick Dispatch:

Your LS Gen 4 & LT Knock Sensor Wire Extension Harness 12” orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your LS Gen 4 & LT Knock Sensor Wire Extension Harness 12” ships.

Need Help?
Questions about LS Gen 4 & LT Knock Sensor Wire Extension Harness 12”, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for LS Gen 4 & LT Knock Sensor Wire Extension Harness 12” in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

Fit perfectly in the filter box, looks well built as far as gas improvement its to early to tell, car drove fine with is installed but it was just installed last night and I have only driven it 30 miles since the install!! I will update if it changes but the price sold me on this along with other reviews! I would buy again at this point!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 5, 2025

Verified Purchase

Elijio Munoz

Charlottesville, US

★★★★★ 5

Good value

Good filter and cheaper than the auto-shop.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 26, 2026

Verified Purchase

Kindle Customer