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    • (34 reviews)
      # sp7830
      Towing Wiring Harness by CURT®. This provides all you need to connect a trailer to the tow vehicle. Generous length allows plenty of wire. Female end is for tow vehicle, male end for trailer. You can cut it to appropriate length to...
      Custom fitAmple length
      $9.43 - $76.29
    • (1 review)
      # sp39966
      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, ground, and electric brake. The...
      Durable construction to last a long timeHeavily insulated wires with jacketed sleeving
      $5.98 - $53.59
    • (2 reviews)
      # sp35627
      Adapters by Bargman®. 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 charging. From simple wiring connectors, to connectors and...
      Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer
      $9.34 - $16.83
    • (0 reviews)
      # sp62716
      7-4 Led Flex Adapter by Hopkins Towing®. 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 Kooks will last a...
      $18.15
    • (0 reviews)
      # sp62714
      Endurance Flex-Coil™ 7 RV Blade Adapter 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...
      Splice onto tow vehicle's wiring systemCorrosion resistant terminals
      $32.50 - $43.00
    • (0 reviews)
      # sp79096
      7-Pin Wiring Pigtail Harness by Torklift®. Needed when you have a camper on the truck and are using a hitch extender.
      High quality at an affordable priceExpertly made from premium materials
      $76.99
    • (3 reviews)
      # sp35658
      Connectors by Bargman®. 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 charging. From simple wiring connectors, to connectors and...
      Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer
      $5.33 - $51.01
    • (0 reviews)
      # sp39984
      Endurance Accessories MMY Group 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 system of...
      Splice onto tow vehicle's wiring systemCorrosion resistant terminals
      $25.25 - $42.61
    • (0 reviews)
      # sp39987
      Endurance Connector MMY Group 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 sturdy, corrosion-resistant...
      Ensure a perfect, weather-tight fitBuilt of durable materials to last
      $5.03 - $18.76
    • (0 reviews)
      # sp39982
      Connector MMY Group 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 sturdy, corrosion-resistant materials,...
      Ensure a perfect, weather-tight fitBuilt of durable materials to last
      $4.60 - $17.99
    • (0 reviews)
      # sp39991
      Molded Cable by Hopkins®. To ensure a secure and reliable connection and consolidate all of the electrical towing functions of your trailer into a single plug, go with this great add-on by Hopkins. Typically used with larger...
      Designed for larger trailers (RV and industrial)Heavy-duty construction to last a long time
      $20.09 - $38.85
    • (1 review)
      # sp39980
      Connector 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 sturdy, corrosion-resistant materials, the...
      Ensure a perfect, weather-tight fitBuilt of durable materials to last
      $2.36 - $18.37
    • (0 reviews)
      # sp53550
      Wire Terminal Connector by Blue Ox®. Designed to prevent electrical feedback when the towed vehicle light system is connected to the RV's brake light wiring, this superior replacement Diode Block by Blue Ox contains one 6-amp diode...
      Replacement diode for BX8847 wiring kitsPrevents electrical feedback and the damage to your towed vehicle's electrical components
      $15.79 - $31.57
    • (0 reviews)
      # sp54556
      5 Male to 5 Flat Female Trailer Connex Connector by Bully®. Eliminate the hassle and mess of traditional trailer.
      Gives your vehicle a serous off-road lookCustom-crafted for a perfect fit on your vehicle
      $26.02
    • (0 reviews)
      # sp58623
      Trailer Accessories by Dorman®. Dorman offers a line of Trailer Accessories for a wide range of applications. We also carry a full range of electrical terminals, available separately, to help complete the installation.
      Constructed from high-quality rubber for long-lasting durabilityEasy to install
      $2.25 - $2.72




    Mercedes GLK class Trailer Hitch Wiring Reviews

    Average rating:  4.5  4.5 - 154 reviews
    5 of 5
    Best Hitches Made
    This hitch replaced an old one I had to put a bolt through to keep it secure. It had come loose once but I was lucky the safety chains kept it with the truck but the big dent still remains in the fender. Bulldog hitches are simple and I no longer worry about whether the trailer is securely attached to my vehicle. I just cut the old welds, ground everything, smooth, welded the Bulldog in place, added some spray primer, (the whole trailer will get paint when it warms up), and I am ready to roll. Both my trailers have been modified with Bulldog hitches.
    LPosted by Leland (Show Low, AZ) / February 4, 2016
    Was this review helpful for you? Yes
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    Mercedes GLK class Models
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