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CURT Extension Harnesses

Looking for top-rated CURT Extension Harnesses for your brake controllers? Look no further than Southwest Wheel®! With over 100 years of trust and reliability, we offer a wide range of extension harnesses to meet your towing needs.

Choose from a variety of options such as the 10' Custom Wiring Extension Harness or the 7' Custom Wiring Extension Harness, designed to add 7-Way RV Blade functionality to your truck bed. For added convenience, check out the 24" USCAR Wiring Extension Harness and more available at competitive prices.

Upgrade your towing experience with CURT Extension Harnesses from Southwest Wheel® today. Explore our selection and find the perfect solution for your brake controller setup. Visit our Brake Controllers category for more towing essentials.

Curt 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) - 56000

CURT 56000 10-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Chevrolet, Dodge, Ford, GMC, Nissan, Ram, Toyota 10' Custom Wiring Extension Harness (Adds 7-Way RV Bl

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Price: $117.95

Curt 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) - 56001

CURT 56001 10-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Dodge Ram 1500, 2500, 3500, Dakota 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck B

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Price: $105.95

Curt 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed, Packaged) - 57010

CURT 57010 10-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Ford F-150, F-250, F-350 Super Duty 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck

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Price: $131.95

Curt 10' Custom Wiring Extension Harnesses (Adds 7-Way RV Blade to Truck Bed, 10-Pack) - 56000010

CURT 56000010 10-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extensions, Select Chevy, Dodge, Ford, GMC, Nissan, Ram, Toyota, 10-Pk 10' Custom Wiring Extension Harnesses (A

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Price: $1,146.95

Curt 24" USCAR Wiring Extension Harness (USCAR to USCAR) - 56475

CURT 56475 24" USCAR Wiring Extension Harness 24" USCAR Wiring Extension Harness (USCAR to USCAR) Adds extra length for easier installation of CURT Echo in-line brake controller

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Price: $26.95

Curt 7' 7-Way RV Blade Extension Harness (Routes to Truck Bed) - 56080

CURT 56080 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension Routes existing 7-way RV blade socket into full-size pickup truck bed Universal size fits any 7-way

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Price: $59.95

Curt 7' Custom Wiring Extension Harness (Adds 4-Way, 7-Way RV Blade to Truck Bed) - 56003

CURT 56003 7-Foot Vehicle-Side Truck Bed 4-Pin, 7-Pin Trailer Wiring Harness Extension, Select Chevrolet, Dodge, Ford, GMC, Nissan, Ram, Toyota 7' Custom Wiring Extension Harness (Adds 4-Way,

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Price: $95.95

Curt 7' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) - 56071

CURT 56071 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Dodge Ram 1500, 2500, 3500, Dakota 7' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed

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Price: $91.95

Curt 7' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed, Packaged) - 56070

CURT 56070 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Chevrolet, Dodge, Ford, GMC, Nissan, Ram, Toyota 7' Custom Wiring Extension Harness (Adds 7-Way RV Blad

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Price: $72.95

Curt 7' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed, Packaged) - 57008

CURT 57008 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Ford F-150, F-250, F-350 Super Duty 7' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Be

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Price: $114.95

Curt 7' Custom Wiring Extension Harnesses (Adds 7-Way RV Blade to Truck Bed, 10-Pack) - 56070010

CURT 56070010 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extensions, Select Chevy, Dodge, Ford, GMC, Nissan, Ram, Toyota, 10-Pk 7' Custom Wiring Extension Harnesses (Adds 7-Wa

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Price: $714.95

Curt 7' GM Wiring Extension Harness & Cover (Adds 7-Way RV Blade to Truck Bed) - 56072

CURT 56072 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension & Cover, Select Chevrolet, GMC 7' GM Wiring Extension Harness & Cover (Adds 7-Way RV Blade to Truck Bed

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Price: $96.95

Curt Custom Wiring Harness Extension Isolator Kit for Aluminum Truck Beds - 57007

CURT 57007 Truck Bed Trailer Wiring Extension Isolator Kit for Ford F-150 with Aluminum Body Securely mounts a 7-way RV blade extension harness in an aluminum truck bed Neoprene we

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Price: $10.95

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CURT Extension Harnesses

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