DORMAN ELECTRICAL TRAILER & TOWING SOLUTIONS

For trailer and towing parts you can trust, Dorman is behind you all the way.

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Trailer and towing electrical systems are constantly exposed to harsh conditions including moisture, corrosion, vibration and repeated connect/ disconnect cycles. When connectors fail or wiring becomes damaged, essential trailer functions like brake lights, turn signals, marker lights and electric brakes can be compromised. Whether maintaining a factory setup or building a custom wiring solution, having the right components is critical for safe, dependable towing.


Dorman’s trailer and towing line offers a comprehensive range of replacement parts, adapters and accessories designed to restore or upgrade electrical connections across a wide variety of vehicles and trailers.

With coverage for common 4-pin (flat), 6-pin and 7-blade connectors, these components support critical lighting functions as well as advanced features such as trailer brakes and auxiliary power. From direct replacements for worn factory connectors to versatile adapters that bridge mismatched configurations, our line takes the headaches out of trailer projects and repairs.

fuel system and accessories

Features and Benefits

Comprehensive coverage

New line of parts supports 4-pin flat, 6-pin and 7-blade connections for lighting, braking and auxiliary power functions across a wide range of vehicles and trailers

Versatile solutions

Including direct replacements, adapters and custom wiring components to repair, upgrade or build complete systems

Built for durability

Designed to withstand harsh environments including moisture, corrosion, vibration and repeated use

Simplify installation

Adapters, connectors and harness components help reduce repair time and ensure reliable connections

Rugged performance

Helps restore or enable critical trailer functions including brake lights, turn signals, marker lights and electric brakes for safer towing

Easily find trailer and towing parts with Dorman’s complete electrical solutions program.

Dorman’s new trailer and towing solutions program simplifies the shopping experience while delivering components your customers need. Featuring a comprehensive range of connectors, adapters, wiring kits, brake accessories and related parts, the program provides coverage for the most common towing electrical applications. Even better, the efficient product mix covers the vast majority of customer needs in a compact footprint.

In addition to replacement connectors, Dorman provides components for custom wiring projects, enabling technicians and installers to create seamless solutions for unique towing setups. Engineered for durability and ease of installation, these products help ensure long-lasting performance in real-world conditions while simplifying repair and customization.

Trailer & Towing
Trailer & Towing
Trailer & Towing

Select Your Connection - Get the Right Fit

Fuel Tanks
Accessory
Flexible Fuel Lines
Adapter
Fuel Pump Driver Module
Braking
Connector
Wiring Kit

Dorman Hopkins Interchange

Search by Dorman or Hopkins part number, connector type (e.g. "7-Blade", "4-Flat") or description, or filter by category.

Showing 43 of 43 parts
14762 40955 7-Blade and 4-Flat Vehicle Side to Ford / GM OEM Connector Connectors
14763 41145 7-Blade Vehicle Side to Chevrolet / GMC Wiring Connector Connectors
14766 42145 7-Blade and 4-Flat Vehicle Side to Dodge OEM Connector Connectors
14767 41153 OE Vehicle Side Tow Connector to 5-Flat Trailer Side Adapter Adapters
38786 48145 4-Flat Vehicle to Trailer Extension 12" Connectors
38787 48255 4-Flat Vehicle Side to Open Wire Y-Harness 25' Wiring Kits
38788 47355 7-Blade Vehicle Side to 4-Flat Trailer Side Adapter Adapters
38792 48675 4-Flat Vehicle Side LED Tester with Dust Cover Accessories
48157 47365 7-Blade Vehicle Side to 4-Flat Trailer Side Flex Adapter Adapters
48158 47207 4-Flat Vehicle Side to 7-Blade Trailer Side Adapter Adapters
48159 47335 7-Blade Vehicle Side to 4-Flat Trailer Side Illuminating Adapter Adapters
48162 47545 7-Blade Vehicle Side to 6-Way Round Trailer Side Adapter-CP Auxiliary Adapters
48163 47555 7-Blade Vehicle Side to 6-Way Round Trailer Side Adapter-CP Brake Adapters Braking
48164 47435 6-Way Round Vehicle Side to 7-Blade Trailer Side Adapter Adapters
48165 47210 7-Blade Vehicle Side Universal Connector Kit Wiring Kits
48166 47575 7-Blade Vehicle Side to 6-Way Round and 4-Flat Trailer Side Adapter-CP Brake Adapters Braking
48170 47015 7-Blade Vehicle Side to 4-Flat Trailer Side Coiled Adapter Adapters
53400 20050 Trailer Breakaway Switch with LED Test Indicator Braking
53410 47715 Ford Plug-In Brake Controller Wiring Harness Braking
53508 47795 Chevrolet / GMC Plug-In Brake Controller Wiring Harness Braking
62000 48505 7-Blade Trailer Side Connector Connectors
62001 48115 4-Flat Trailer Side Connector 12" Connectors
62003 47345 7-Blade Vehicle Side to 4-Flat Trailer Side LED Test Adapter Adapters
62004 48215 4-Flat Vehicle Side and Trailer Side Wiring Connectors (48"/12") Connectors Wiring Kits
62005 48502 7-Blade Trailer Side Illuminating Connector Connectors
62006 47965 2-Flat Extension Connector 12" Connectors
62007 20245 7-Blade Trailer Side Molded Connector with 6' Cable Connectors
62008 48035 4-Flat Vehicle Side Connector 48" Connectors
62009 47115 4-Flat Extension Connector 48" Connectors
62011 48480 7-Blade Vehicle Side Connector Connectors
62013 48445 6-Way Round Trailer Side Connector Connectors
62014 48485 7-Blade Vehicle Side Connector Connectors
62015 48510 7-Blade Trailer Side Ergonomic Grip Connector Connectors
62016 40940 Ford/GM to 7 Blade Vehicle Side OEM Plug In Tow Connector Connectors
62017 47105 4-Flat Extension Connector 32" Connectors
62019 47185 4-Flat Vehicle Side to 7-Blade and 4-Flat Trailer Side Multi-Output Connector Connectors
62022 48435 6-Way Round Vehicle Side Metal Connector Connectors
62023 47895 5-Flat Vehicle Side and Trailer Side Wiring Connectors (48"/12") Connectors Wiring Kits
62024 47205 4-Flat Vehicle Side to 7-Way Trailer Side Adapter Adapters
62025 48295 4-Way Round Vehicle Side and Trailer Side Connectors Connectors
78897 49915 4-Wire Bonded Trailer Wire (16/18 Gauge, 25') Wiring Kits
78898 49905 4-Wire Bonded Trailer Wire (14 Gauge, 25') Wiring Kits
78899 48625 Universal Trailer Connector Mounting Bracket Accessories
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Get vehicle applications and technical details at dormanproducts.com  |  Tech Line: 1-866-933-2911