SKU: 39556802270

CURT 56077 - Custom Wiring 4-Way Flat Select Montana Relay Terraza Uplander

Sale price$25.20 Regular price$28.00
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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30

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Description

CURT 56077 - Custom Wiring 4-Way Flat Select Montana Relay Terraza UplanderIf your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness also called a T connector is a simple, plug and play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle specific, OEM compatible connectors to plug into the taillight assembly, eliminating the need for

If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Pontiac Montana, Saturn Relay, Buick Terraza and Chevy Uplander (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.

Shipping Notes
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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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SKU: 39556802270

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4.1 ★★★★★
Based on 8 reviews
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Verified Purchase
Becca
New York, US
★★★★★ 4
Affordable priced. Fits well
Size: AF377
They work good in my 2019 Toyota RAV4
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
M
Verified Purchase
MarkC
Carnegie, US
★★★★★ 5
Perfect fit, slid right into place and locked like it should
Size: AF943
Wanting to correct my previous review (I reviewed the incorrect item). This product fit perfectly in my vehicle- my apologies for the first review; perhaps Amazon or the vendor can replace the first review with this one. I am very pleased with this item.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
C
Verified Purchase
Carole R. NAPOLI
Pawtucket, US
★★★★★ 5
Great filter
Size: AF741
Fit out Toyota Prius V 2014 perfect. Well made too.
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Reviewed in the United States on May 26, 2026
D
Verified Purchase
Dave C
Lexington, US
★★★★★ 5
Quality socket
Size: 27mm
Beefy socket, worked great for removing filter housing for 2004 Mini.
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Reviewed in the United States on November 22, 2024
J
Verified Purchase
Jonathan Gerber
Waukegan, US
★★★★★ 5
Fits really well. Materials appear sturdy.
Size: 36mm
Fits my 05 Z4 prefect. Materials seem sturdy. Will probably last longer than the car.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025

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