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Wiring Adapter - 4L60E Harness to 4L80E Transmission
Wiring Adapter - 4L60E Harness to 4L80E Transmission
Wiring Adapter - 4L60E Harness to 4L80E Transmission
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Wiring Adapter - 4L60E Harness to 4L80E Transmission

Marsoni M251S
Sale price$126.95
Pay 4 payments of $31.74 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Wiring Adapter - 4L60E Harness to 4L80E TransmissionLS Transmission Adapter Harness Used when converting a 4L60E vehicle to a 4L80E transmission. Simply plug in this adapter, add the 2 wires to the ECM for the speed sensor, then segment swap your tune 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 GM Vehicles originally equipped with LS series 4L60E Transmissions Includes:
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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.
  • To process your return/exchange, please contact us at [email protected]
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4.2 ★★★★★
Based on 1464 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Excellent pillows!
Size: Queen, Number of Items: 2
This pack came with 2 pillows, one firm and one that was flatter and squishy. I absolutely love the flatter one! Most comfortable pillow I've ever used! The firm one was a bit too much for me, but my husband loves it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
P
Verified Purchase
Phanessa Hernandez
Lake Worth, US
★★★★★ 3
It’s alright.
Size: Queen, Number of Items: 2
Not bad pillows. They are comfortable but mine came with an odd odor, kind of mildewy smell to it. Had to spray it down to tolerate sleeping on it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
A
Verified Purchase
ALEXANDRA W.
Louisville, US
★★★★★ 5
Nice pillows
Size: Queen, Number of Items: 2
Have had these a few months and so far really like them! They don’t really feel very cooling, but I also run VERY HOT so it could just be me. The foam holds up well and hasn’t flattened like others I’ve tried. They come very compacted- I was shocked how much they expanded!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
B
Verified Purchase
Balous belote
Phoenix, US
★★★★★ 5
Mr.b
Size: Standard, Number of Items: 2
The pillows are cool and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
M
Verified Purchase
Mopardodgegirl
Birmingham, US
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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