GMC I-Series Hitch Wiring

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    • Hopkins® - Endurance™ Easy-Pull™ 4 Flat Extension
      (0 reviews)
      # 649599428
      Universal Endurance™ Easy-Pull™ 4 Flat Extension by Hopkins®. When attaching a trailer to your vehicle, a premium quality wiring kit or harness is a vital necessity. An automotive trailer must have a reliable connection with the...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $7.35 - $12.74
    • Hopkins® - Endurance™ Easy-Pull™ 4-Flat Y-Harness
      (0 reviews)
      # mpn4555775872
      Endurance™ Easy-Pull™ 4-Flat Y-Harness by Hopkins®. When attaching a trailer to your vehicle, a premium quality wiring kit or harness is a vital necessity. An automotive trailer must have a reliable connection with the signaling...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $17.25
    • Hopkins® - Endurance™ Flex Adapter 6-Pole Round to 4-Wire Flat Adapter
      (1 review)
      # mpn2227596
      Universal Endurance™ Flex Adapter 6-Pole Round to 4-Wire Flat Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right...
      Provides for flexible reach3-Year Warranty
      $17.52
    • Hopkins® - Endurance™ Multi-Tow® 4-Flat to 7 Blade and 4-Flat Connector
      (0 reviews)
      # mpn3526390343
      Universal Endurance™ Multi-Tow® 4-Flat to 7 Blade and 4-Flat Connector by Hopkins®. When attaching a trailer to your vehicle, a premium quality wiring kit or harness is a vital necessity. An automotive trailer must have a reliable...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $34.17
    • Hopkins® - Endurance™ Multi-Tow® 7 RV Blade to 6 Round, 4 / 5-Wire Flat Adapter
      (1 review)
      # mpn2227606
      Universal Endurance™ Multi-Tow® 7 RV Blade to 6 Round, 4 / 5-Wire Flat Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as...
      Patented Quick-Change™ plug quickly accommodates both 6 pole wiring codesMulti-Tow® Adapter provides four different trailer towing options from a single device
      $20.96
    • Hopkins® - Endurance™ OE to 7 RV Blade, 4-Wire Flat and 5-Wire Flat Adapter
      (1 review)
      # mpn29441649
      Universal Endurance™ OE to 7 RV Blade, 4-Wire Flat and 5-Wire Flat Adapter by Hopkins®. To have a greater peace of mind when driving with a trailer, go with this perfect accessory that is sure to provide you with a safe, secure...
      Incorporating Endurance design features enables this connector to last for years of trouble-free useMulti-Tow® provides multiple towing options from one connector
      $26.83
    • Hopkins® - Endurance™ Quick-Install™ 4-Flat to 7 Blade Wiring Kit
      (1 review)
      # mpn2227594
      Universal Endurance™ Quick-Install™ 4-Flat to 7 Blade Wiring Kit by Hopkins®. To have a greater peace of mind when driving with a trailer, go with this perfect accessory that is sure to provide you with a safe, secure connection....
      Allows existing 4 flat to adapt to the Quick-Install™ 7 RV BladeQuick and easy installation or replacement
      $29.51
    • Hopkins® - Endurance™ Quick-Install™ 7 Blade OEM Wiring Kit
      (0 reviews)
      # mpn2227581
      Universal Endurance™ Quick-Install™ 7 Blade OEM Wiring Kit by Hopkins®. To have a greater peace of mind when driving with a trailer, go with this perfect accessory that is sure to provide you with a safe, secure connection. Made of...
      Allows for Dodge trucks to adapt to the Quick-Install™ 7 RV BladeReinforced lid opens 180 degrees to prevent breaking
      $27.08
    • Hopkins® - LED Test 7 Blade to 6 Round Adapter with LED's
      (1 review)
      # 566238923
      Universal LED Test 7 Blade to 6 Round Adapter with LED's by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right turn, tail...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $15.32 - $15.49
    • Hopkins® - Multi-Tow™ 4-Wire Flat Adapter
      (1 review)
      # 267968936
      Universal Multi-Tow™ 4-Wire Flat Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right turn, tail light, auxiliary,...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $28.32 - $28.33
    • Hopkins® - Multi-Tow™ 7 RV Blade to 5-Wire and 4-Wire Flat Adapter
      (1 review)
      # 566276335
      Universal Multi-Tow™ 7 RV Blade to 5-Wire and 4-Wire Flat Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right turn,...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $16.37 - $16.49
    • Hopkins® - Multi-Tow™ 7 RV Blade to 6 Round and 4 Flat Adapter
      (1 review)
      # 566265945
      Universal Multi-Tow™ 7 RV Blade to 6 Round and 4 Flat Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right turn,...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $16.37 - $19.96
    • Hopkins® - Nite-Glow™ 7-Way RV Blade To 4-Wire Flat Adapter
      (1 review)
      # mpn2227513
      Universal Nite-Glow™ 7-Way RV Blade To 4-Wire Flat Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right turn, tail...
      Nite-Glow™ illuminates on taillight function verifying continuityFind you connection in the dark
      $12.77
    • Wesbar® - 4-Flat Trailer End with 4 Square Car End Loop
      (4 reviews)
      # mpn2569447
      Universal 4-Flat Trailer End with 4 Square Car End Loop by Wesbar®. One-year warranty. 7-1/3' Length. Color coded sealed cable available with trailer end connector, jacketed cable and 4' stripped wire leads. No exposed wires and sealed...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $15.21
    • Wesbar® - 5-Flat To 5-Flat Coiled Adapter
      (1 review)
      # 470449791
      Universal 5-Flat To 5-Flat Coiled Adapter by Wesbar®. Length: 4'. One-year warranty. Wire up your tow vehicle and trailer with whatever it takes to get your trailer lights on, the electric brakes slowing down, and the trailer battery...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $14.51 - $16.68
    • Wesbar® - 6-Way Round Pin to 4-Flat Adapter
      (1 review)
      # mpn2569776
      Universal 6-Way Round Pin to 4-Flat Adapter by Wesbar®. One-year warranty. Adapters for a quick switch from one style plug to another when towing multiple trailers. Wire up your tow vehicle and trailer with whatever it takes to get your...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $15.12
    • Wesbar® - AG Tandem Haul Adapter
      (0 reviews)
      # mpn2569024
      Universal AG Tandem Haul Adapter by Wesbar®. Limited 1-Year Warranty. The Tandem Haul Adapter allows implements to be towed in tandem, providing versatility and economy. Don't tow around a trailer with malfunctioning lighting. Give...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $46.58
    • Wesbar® - AG Tandem Haul Adapter Kit
      (0 reviews)
      # mpn2569029
      Universal AG Tandem Haul Adapter Kit by Wesbar®. Limited 1-Year Warranty. The Tandem Haul Adapter allows implements to be towed in tandem, providing versatility and economy. Don't tow around a trailer with malfunctioning lighting. Give...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $39.33
    • Wesbar® - Coiled Adapter
      (1 review)
      # 470432787
      Universal Coiled Adapter by Wesbar®. One-year warranty. Environmentally sealed 16 gauge coiled wire prevents tangling. Attractive marine yellow, no fade color. 7-way mates with OE style 7-way blade connectors. 5-way mates with either a...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $18.35 - $25.41
    • Westin® - 7-Way / 4-Way Flat Adapter
      (0 reviews)
      # 422140349
      Universal 7-Way / 4-Way Flat Adapter by Westin®. 1-Piece Desing. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $18.74 - $34.21
    • Anzo® - 7-Pin Trailer Wire Adapter
      (0 reviews)
      # mpn1406940
      Universal 7-Pin Trailer Wire Adapter by Anzo®. Every Anzo USA product is backed by a One Year Warranty against manufacturer defects. With over three decades of professional manufacturing experience and with ISO 9002 and German T.U.V...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $30.41
    • Anzo® - Dual 4-Wire Flat Trailer Wire Adapter
      (0 reviews)
      # mpn1406939
      Universal Dual 4-Wire Flat Trailer Wire Adapter by Anzo®. Every Anzo USA product is backed by a One Year Warranty against manufacturer defects. With over three decades of professional manufacturing experience and with ISO 9002 and...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $13.09
    • Pollak® - Die-Cast Connector with Cable Guard
      (0 reviews)
      # mpn1558908452
      Universal Die-Cast Connector with Cable Guard by Pollak®. 7-way die cast plug with cable guard. Will accept a large range of wire gauges. Interchangeable. This superior product is perfect to make your trailer towing experience safe and...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $14.98
    • Reese Towpower® - 4-Round to 4-Way Adapter
      (0 reviews)
      # mpn4565701112
      Universal 4-Round to 4-Way Adapter by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the highest-quality materials and the latest manufacturing...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $16.93
    • Reese Towpower® - 6-Pin to 4-Way Adapter with LED Tester
      (0 reviews)
      # mpn4565700969
      Universal 6-Pin to 4-Way Adapter with LED Tester by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the highest-quality materials and the latest...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $13.78
    • Reese Towpower® - 6-Way Round Pin 4-Way Combo Harness T-Connector Adapter with Mounting Bracket
      (0 reviews)
      # mpn4565700306
      Universal 6-Way Round Pin 4-Way Combo Harness T-Connector Adapter with Mounting Bracket by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $25.20
    • Reese Towpower® - 6-Way Round Pin to 4-Way Adapter
      (0 reviews)
      # mpn4565701257
      Universal 6-Way Round Pin to 4-Way Adapter by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the highest-quality materials and the latest manufacturing...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $6.12
    • Reese Towpower® - 7-Way Blade to 4-Way Adapter
      (0 reviews)
      # 1419002604
      Universal 7-Way Blade to 4-Way Adapter by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the highest-quality materials and the latest manufacturing...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $6.86 - $10.25
    • Reese Towpower® - 7-Way Blade to 6-Way Center Pin Brake Adapter
      (0 reviews)
      # mpn4565700169
      Universal 7-Way Blade to 6-Way Center Pin Brake Adapter by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the highest-quality materials and the latest...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $10.21
    • Reese Towpower® - 7-Way Round Blade to 4-Way Flat Towing Electrical Adapter with LED Circuit Tester
      (0 reviews)
      # mpn4565700278
      Universal 7-Way Round Blade to 4-Way Flat Towing Electrical Adapter with LED Circuit Tester by Reese Towpower®. Transform your vehicle into a reliable load-hauling machine with this superior trailer hitch. Made using only the...
      Ideal to make trailer towing safer and easierMade from the highest-quality materials to last for years to come
      $12.19




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