


Wiring Adapter - 4L60E Harness to 4L80E Transmission
Marsoni
M251S
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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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Reviewed in the United States on September 6, 2025
★★★★★ 1
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Reviewed in the United States on October 10, 2024
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