Hopkins 12in LED Test 4 Flat Extension

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Part #
48143
The price of this item is: 12 dollars and 49 cents
quantity
Specifications:
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Part Number:
48143
SKU Number:
850856
End 2 Terminal Quantity:
4
End 2 Shape:
Flat
Part #48143
SKU #850856
End 2 Terminal Quantity4
End 2 ShapeFlat
Length12.0in
Wire Quantity4
Wire ColorsGreen;Yellow;White;Brown
End 1 GenderMale
End 2 GenderFemale
End 1 Terminal Quantity4
Connector Quantity2
End 1 ShapeFlat
Universal Or Specific FitUniversal
Improve your trailer wiring capabilities with the Hopkins LED Test 4-Flat Extension. This 12-inch trailer wire connector extension provides the extra length needed when your vehicle's trailer electrical connector is mounted in the bumper, ensuring sufficient slack for proper trailer turning radius. Built-in LED test lights make troubleshooting quick and easy by providing visual confirmation of proper connection at a glance. The corrosion-resistant terminals and clearly printed wire functions make installation straightforward, while the universal 4-flat design works with most small boat and utility trailers. This SAE-compliant trailer power connector features male and female connections for seamless integration with your existing trailer wiring harness.
  • Built-in LED test lights provide instant visual confirmation of proper trailer light connectors function
  • 12-inch length offers extra slack for safe trailer turning
  • Universal 4-flat trailer wire connectors design compatible with most small boat and utility trailers
  • Corrosion-resistant terminals ensure lasting durability
  • Clearly printed wire functions simplify trailer wiring installation
  • Male-to-female trailer connectors for easy integration
  • Meets SAE standards for safety and reliability
18 Ratings
82% of reviewers recommend this product.
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12 Reviews

  • It is a standard piece

    JTB
    20 days ago
    Verified Purchase
    Replacement plug

    Helpful?

  • Product defictive.

    RANDY
    3 months ago
    Verified Purchase
    The harness is defective. 1 wire that goes in one end must be broken in the black molded end. 2 time this has happened. Same wire.
    Purchased for: 2025 F250

    Helpful?

  • Inexpensive and a great product.

    Terry Lockard
    6 months ago
    Verified Purchase
    Recommended
    Used for wiring extension. It locked in tight, and worked well. It helped me find a bad connection on the wire the controls the running lights.
    Purchased for: 2013 & 2025 F150’s

    Helpful?

  • easy to install

    Kevin
    11 months ago
    Verified Purchase
    Recommended
    just long enough for extended cable

    Helpful?

  • Trailer lights accessories

    R hawes
    1 year ago
    Verified Purchase
    Recommended
    Exactly what i needed. Thank you
    Purchased for: 2020 f140

    Helpful?

  • Broken

    Shaners9
    1 year ago
    Verified Purchase
    Sweepstakes Entry
    The right turn signal won't work

    Helpful?

  • It has sensors to detect when a light is out.

    Skipp Mitchell
    2 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry
    I bought it to extend from my boat trailer to my pickup, I wanted to have a bit more length in turns.
    Purchased for: 2020 Ford Ranger XLT Sport

    Helpful?

  • Fit for trailer light plug

    WILEY
    2 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry
    Easy install and help fix my trailer lights
    Purchased for: 2019 1500 Ram Bighorn

    Helpful?

  • Easy way to verify tow vehicle signals

    Rdp
    2 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry
    Easy way to verify tow vehicle signals are working without a meter or test light. I chose the extension over the plug model to in case I ever needed a bit longer extension
    Purchased for: 2014 Ford Expedition

    Helpful?

  • easy quick conrction

    Lukes dionne
    4 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry
    verry tight conection no problems..
    Purchased for: 2005 tayotta corolla

    Helpful?

  • Great quality

    Hector
    4 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry
    I used this for my tow trailer and it worked just fine i had no issues with it at all
    Purchased for: Tow trailer

    Helpful?

  • Good product

    chariotofmanliness
    4 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry
    The only problem I had with this was that it was too short for the task. I exchanged it for a 24" extension. If the trailer connection is at the ball connection, this product will work (you need slack for turns).
    Purchased for: 2005 Nissan Xterra

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