Skip to content
HEAVY-DUTY HOLIDAY DEALS: Start the Holiday Season with Savings Up to 50%. Shop Now >
Northern Tool Equipment Logo TextNorthern Tool Equipment Logo text link to Home.

Free Gift Card on All Orders Over $100 See Details

Free Gift Card Details

$100 Order
$10
gift card
$250 Order
$25
gift card
$500 Order
$50
gift card
$1000 Order
$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 03/01/27.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.

Trailer Wiring

Trailer Wiring Categories

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.

number of products (106)

Wiring Adapters

Wiring Adapters

number of products (81)

Trailer Connectors

Trailer Connectors

number of products (7)

Testers + Accessories

Testers + Accessories

Filters

Active Filters

  • Sold In Stores

    Find a Store

  • Category

    • Testers + Accessories items
    • Trailer Connectors items
    • Wire, Connector Cables + Wiring Harnesses items
    • Wiring Adapters items

  • Brand

  • Price

    to

    • Below $100.00 (287) items
    • $100.00 - $200.00 (22) items
    • $200.00 - $300.00 (9) items
    • $300.00 - $400.00 (2) items
    • $400.00 - $500.00 (3) items

  • Customer Ratings

    • 5 (27) items
    • 4 (18) items
    • 3 (3) items
    • 2 (1) items

  • More Savings

    • Free Shipping (44) items
    • Sale (1) items
    • Clearance (1) items

  • New Arrival

    • Y (32) items

1-48 of 324 Products

Ultra-Tow 7- and 4-Way Circuit Tester

Ultra-Tow 7- and 4-Way Circuit Tester

Item # 578224

$24.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Trailer End 7Blade Jacketed Cable72in., Connection Location Trailer Side, Model# 9570

TowSmart, Connector Trailer End 7Blade Jacketed Cable72in., Connection Location Trailer Side, Model# 9570

Item # 6547357

$62.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Trailer End, 7 Blade, Connection Location Trailer Side, Model# 1430

TowSmart, Connector, Trailer End, 7 Blade, Connection Location Trailer Side, Model# 1430

Item # 6547111

$14.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
Convoluted Tubing, 3/8in. x 10ft.

Convoluted Tubing, 3/8in. x 10ft.

Item # 639035

$4.50
Reg $8.99Save 50%

Order today to get this price.

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Trailer End, 4 Wire Flat, 12in., Connection Location Trailer Side, Model# 1441

TowSmart, Connector, Trailer End, 4 Wire Flat, 12in., Connection Location Trailer Side, Model# 1441

Item # 6547066

$8.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, ConnectorTrailer End 4 Wire Flat Y-Harness 25ft., Connection Location Trailer Side, Model# 2386

TowSmart, ConnectorTrailer End 4 Wire Flat Y-Harness 25ft., Connection Location Trailer Side, Model# 2386

Item # 6547146

$22.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
Hopkins Towing Solutions 4-Conductor Wire, 14-Ga., 25ft.L

Hopkins Towing Solutions 4-Conductor Wire, 14-Ga., 25ft.L

Item # 649905

$32.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Wire, 4 Wire Bonded, 14 Gauge, 25ft., Connection Location Trailer or Vehicle Side, Model# 1198

TowSmart, Wire, 4 Wire Bonded, 14 Gauge, 25ft., Connection Location Trailer or Vehicle Side, Model# 1198

Item # 6547322

$39.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
IPA Master Trailer Connector Cleaner Set, Model# 8044

IPA Master Trailer Connector Cleaner Set, Model# 8044

Item # 32557

$103.96
 

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter, 7 Blade to 5 and 4 Wire Flat, Connection Location Vehicle Side, Model# 1426

TowSmart, Adapter, 7 Blade to 5 and 4 Wire Flat, Connection Location Vehicle Side, Model# 1426

Item # 6547568

$18.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Extension, 4 Wire Flat to 4 Wire Flat, 48in., Connection Location Vehicle Side, Model# 9565

TowSmart, Extension, 4 Wire Flat to 4 Wire Flat, 48in., Connection Location Vehicle Side, Model# 9565

Item # 6582849

$17.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Wire, 4 Wire Bonded, 16-18 Gauge, 100ft., Connection Location Trailer or Vehicle Side, Model# 2508

TowSmart, Wire, 4 Wire Bonded, 16-18 Gauge, 100ft., Connection Location Trailer or Vehicle Side, Model# 2508

Item # 6582857

$72.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter, 6 Round to 7 Blade, Connection Location Vehicle Side, Model# 2529

TowSmart, Adapter, 6 Round to 7 Blade, Connection Location Vehicle Side, Model# 2529

Item # 6547437

$37.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter, 7 Blade to 4 Wire Flat w/LED Illuminator, Connection Location Vehicle Side, Model# 2355

TowSmart, Adapter, 7 Blade to 4 Wire Flat w/LED Illuminator, Connection Location Vehicle Side, Model# 2355

Item # 6547365

$18.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector 4 Wire Flat Set 12in. Vehicle, 12in. Trailer, Connection Location Trailer or Vehicle Side, Model# 1312

TowSmart, Connector 4 Wire Flat Set 12in. Vehicle, 12in. Trailer, Connection Location Trailer or Vehicle Side, Model# 1312

Item # 6547074

$12.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, OEM to 7 Blade and 4 Flat, Connection Location Vehicle Side, Model# 2379

TowSmart, Connector, Vehicle End, OEM to 7 Blade and 4 Flat, Connection Location Vehicle Side, Model# 2379

Item # 6547091

$59.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, 7 Blade, Connection Location Vehicle Side, Model# 1446

TowSmart, Connector, Vehicle End, 7 Blade, Connection Location Vehicle Side, Model# 1446

Item # 6547293

$13.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Convoluted Tubing, 3/8in., 10ft., Model# 9571

TowSmart, Convoluted Tubing, 3/8in., 10ft., Model# 9571

Item # 6547381

$14.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter 7Blade to 6Round Center Pin Electric Brake, Connection Location Vehicle Side, Model# 1450

TowSmart, Adapter 7Blade to 6Round Center Pin Electric Brake, Connection Location Vehicle Side, Model# 1450

Item # 6547429

$19.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, 2 Wire Flat Set, 12in., Connection Location Trailer or Vehicle Side, Model# 1342

TowSmart, Connector, 2 Wire Flat Set, 12in., Connection Location Trailer or Vehicle Side, Model# 1342

Item # 6547541

$8.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Trailer End, 6 Round, Connection Location Trailer Side, Model# 1470

TowSmart, Connector, Trailer End, 6 Round, Connection Location Trailer Side, Model# 1470

Item # 6547120

$10.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, 4 Wire Flat, 12in. w/Splices, Connection Location Vehicle Side, Model# 9573

TowSmart, Connector, Vehicle End, 4 Wire Flat, 12in. w/Splices, Connection Location Vehicle Side, Model# 9573

Item # 6547218

$8.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Wire Splices, 14-18 Gauge, 6 pc, Connection Location Trailer or Vehicle Side, Model# 9563

TowSmart, Wire Splices, 14-18 Gauge, 6 pc, Connection Location Trailer or Vehicle Side, Model# 9563

Item # 6582911

$5.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector 4 Wire Flat Set 48in. Vehicle, 12in. Trailer, Connection Location Trailer or Vehicle Side, Model# 9547

TowSmart, Connector 4 Wire Flat Set 48in. Vehicle, 12in. Trailer, Connection Location Trailer or Vehicle Side, Model# 9547

Item # 6547242

$17.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Trailer End, 7 Blade w/Wire Tester, Connection Location Trailer Side, Model# 9587

TowSmart, Connector Trailer End, 7 Blade w/Wire Tester, Connection Location Trailer Side, Model# 9587

Item # 6547461

$29.99
 

  • Shipping: 

    Backordered - Expected to ship Tue, Nov 24

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Mounting Bracket, 7 Blade, Model# 1478

TowSmart, Connector, Mounting Bracket, 7 Blade, Model# 1478

Item # 6547390

$14.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter, 7 Blade to 6 Round and 5/4 Flat, Connection Location Vehicle Side, Model# 1323

TowSmart, Adapter, 7 Blade to 6 Round and 5/4 Flat, Connection Location Vehicle Side, Model# 1323

Item # 6547517

$26.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
Buyers Products, 96in. 5200 Series Universal Mount Control Cable, Length 96 in, Model# 5203BBU096

Buyers Products, 96in. 5200 Series Universal Mount Control Cable, Length 96 in, Model# 5203BBU096

Item # 5774048

$49.99
 

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, 4 Flat to 7 Blade 4 Flat, Connection Location Vehicle Side, Model# 2523

TowSmart, Connector, Vehicle End, 4 Flat to 7 Blade 4 Flat, Connection Location Vehicle Side, Model# 2523

Item # 6547138

$57.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Vehicle End Taillight Converter w/4 Flat, Connection Location Vehicle Side, Model# 2525

TowSmart, Connector Vehicle End Taillight Converter w/4 Flat, Connection Location Vehicle Side, Model# 2525

Item # 6547226

$27.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, OEM GM to 7 Blade 4 Flat, Connection Location Vehicle Side, Model# 9534

TowSmart, Connector, Vehicle End, OEM GM to 7 Blade 4 Flat, Connection Location Vehicle Side, Model# 9534

Item # 6547234

$32.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, 7 Blade and 4 Wire Flat, Connection Location Vehicle Side, Model# 2521

TowSmart, Connector, Vehicle End, 7 Blade and 4 Wire Flat, Connection Location Vehicle Side, Model# 2521

Item # 6547200

$32.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Vehicle End OEM to 7 Blade 4 Flat Oval, Connection Location Vehicle Side, Model# 2526

TowSmart, Connector Vehicle End OEM to 7 Blade 4 Flat Oval, Connection Location Vehicle Side, Model# 2526

Item # 6547285

$47.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, 7 Blade Kit, Connection Location Trailer or Vehicle Side, Model# 1444

TowSmart, Connector, 7 Blade Kit, Connection Location Trailer or Vehicle Side, Model# 1444

Item # 6547171

$42.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, 4 Flat to 7 Blade 4 Flat, Connection Location Vehicle Side, Model# 2356

TowSmart, Connector, Vehicle End, 4 Flat to 7 Blade 4 Flat, Connection Location Vehicle Side, Model# 2356

Item # 6547306

$47.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter 7 Blade to 5 and 4 Wire w/LED Illuminator, Connection Location Vehicle Side, Model# 9574

TowSmart, Adapter 7 Blade to 5 and 4 Wire w/LED Illuminator, Connection Location Vehicle Side, Model# 9574

Item # 6547445

$27.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, Vehicle End, OEM to 5 Wire Flat, Connection Location Vehicle Side, Model# 9590

TowSmart, Connector, Vehicle End, OEM to 5 Wire Flat, Connection Location Vehicle Side, Model# 9590

Item # 6547251

$42.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Trailer End 6Round w/ Jacketed Cable 96in., Connection Location Trailer Side, Model# 9552

TowSmart, Connector Trailer End 6Round w/ Jacketed Cable 96in., Connection Location Trailer Side, Model# 9552

Item # 6582873

$57.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
CURT Quick Plug Electric Trailer Brake Controller Wiring Harness, Fits Select Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, Escalade

CURT Quick Plug Electric Trailer Brake Controller Wiring Harness, Fits Select Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, Escalade

Item # 6668749

$19.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Adapter, 7 Blade to 6 Round, Center Pin Auxiliary, Connection Location Vehicle Side, Model# 1455

TowSmart, Adapter, 7 Blade to 6 Round, Center Pin Auxiliary, Connection Location Vehicle Side, Model# 1455

Item # 6547509

$14.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector, ProClass, Vehicle End, OEM to 7 Blade, Connection Location Vehicle Side, Model# 2374

TowSmart, Connector, ProClass, Vehicle End, OEM to 7 Blade, Connection Location Vehicle Side, Model# 2374

Item # 6547154

$23.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
Buyers Products, 7-Way Plastic Trailer Connector - Trailer Side, Connection Location Trailer Side, Model# TC2007P

Buyers Products, 7-Way Plastic Trailer Connector - Trailer Side, Connection Location Trailer Side, Model# TC2007P

Item # 6071521

$6.49
 

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector 5 Wire Flat Set 48in. Vehicle, 12in. Trailer, Connection Location Trailer or Vehicle Side, Model# 2398

TowSmart, Connector 5 Wire Flat Set 48in. Vehicle, 12in. Trailer, Connection Location Trailer or Vehicle Side, Model# 2398

Item # 6547269

$24.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Vehicle End 4 Flat with Wire Tester, 48in., Connection Location Vehicle Side, Model# 1319

TowSmart, Connector Vehicle End 4 Flat with Wire Tester, 48in., Connection Location Vehicle Side, Model# 1319

Item # 6547082

$15.99
 

  • Shipping: 

    Backordered - Expected to ship Fri, Nov 20

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
Hollins 4-Pin Trailer End, Model# ETP300-1

Hollins 4-Pin Trailer End, Model# ETP300-1

Item # 7274194

$17.99
 

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
Activating this checkbox will add this item to the product comparison tool.
CURT Electric Trailer Brake Controller Wiring Kit

CURT Electric Trailer Brake Controller Wiring Kit

Item # 6668765

$47.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.
Pollack 7-Way Flat Pin to 4-Flat Adapters — Plastic, 10-Pack, Model# 37355-10

Pollack 7-Way Flat Pin to 4-Flat Adapters — Plastic, 10-Pack, Model# 37355-10

Item # 6845426

$57.99
 

  • Shipping: 

    Free shipping - Factory shipped

  • Store Pickup: 

    Not available - online only
Activating this checkbox will add this item to the product comparison tool.
TowSmart, Connector Vehicle End Chevy/GMVehicle Wire Harness, Connection Location Vehicle Side, Model# 1311

TowSmart, Connector Vehicle End Chevy/GMVehicle Wire Harness, Connection Location Vehicle Side, Model# 1311

Item # 6547040

$24.99
 

  • Shipping: 

    Available now

  • Store Pickup: 

    Not Available
Activating this checkbox will add this item to the product comparison tool.

Did You Find What You Were Looking For?