Top 10 Trailer Wiring Harness Manufacturers in USA

Trailer wiring harness is a relatively subdivided and professional industry in wiring harness products. The electrical requirements for the American trailer industry are fully in accordance with SAE standards.

For the choice of trailer wiring harness manufacturers, not only processing capabilities, but also continuous innovation of trailer wiring harness solutions is required. Some manufacturers of trailer wire harnesses in the US are mentioned below for who you can trust and reply on.

Table of Contents

Top 10 Trailer Wiring Harness Manufacturers in USA

You won’t have to worry about risking your life if you opt for any of the above companies as they all have certified quality products.

Phillips Industries Inc.

Location: 12012 – 12070 Burke Street, Santa Fe Springs, CA 90670, USA

Founded nearly 100 years, Phillips evolved from a parts distributor to an innovator and manufacturer of advanced concept air and electrical parts for the commercial vehicle transportation industry.

Phillips products are standard on nearly 100% of Class 8 trucks and are available at nearly all premium dealers.

Phillips’ products include electrical assemblies, electrical connectors, battery terminals, wires, harness systems, and other tools and accessories.

Phillips trailer wiring or connector designs like QBOX™ Trailer Wire DUAL POLE, QCS2® QUICK-CHANGE SOCKET DUAL POLE, QCS2® STRAIGHT BACK KIT DUAL POLE, QCS2® QUICK-CHANGE SOCKET, STA-DRY® S7™, VOLT-BOX™ make a difference and lead the industry way.

Grote Industries Inc.

Location: 2600 Lanier Drive Madison, Indiana 47250 USA

Grote Industries is an automotive company offering manufactures LED Lights and lighting products for heavy duty trucks.

Grote’s power delivery product offering includes nose boxes, pigtails, harnesses, connection from the front of your truck to the back of your trailer.

Cut-To-Fit® Wire Harness Systems and ULTRA-BLUE-SEAL® Main Harness are Grote featured trailer wiring solutions. Besides harnesses, Grote also provide Electrical Trailer connectors, Terminal and Connectors.

Grote’s trailer connectors and Communication Product Guarantee provide enough power to vehicle lighting and security systems.

Truck-Lite Co., LLC

Location: 310 East Elmwood Avenue Falconer, NY 14733 USA

Truck-Lite is a worldwide leader in heavy-duty forward and signal lighting, mirrors, trailer harnesses and other safety and visibility systems.

Truck-Lite Trailer wiring systems are designed using varying colors of wire within the main harness assembly. These different colors designate which lighting applications the wires are being routed to. This makes finding the culprit in electrical malfunctions a bit easier.

Truck-Lite’s lighting and harness systems such as 28’ 50 Series Harness System, 48’ 50 Series Harness System, 28’ Van Trailer Harness System, 48’/53’ Van Trailer Harness System, 48’ Trailer Harness System can be used directly or customize each system to your exact needs.

JKD Products Inc

Location: Freeport West F-4 Section 2, Clearfield, UT 84016 USA

JKD Products has been providing custom wiring needs since 2001, which is a family-owned business specializing in custom trailer wiring harnesses.

Most Trailer Harnesses are made with 7-Way RV Plug, 4-Way RV Plug, 7-Way RV to Flat 4-Way Adapter, Flat 4-Way.

Although it’s not a very large company, their quality and product innovation of injection molded trailer wire harnesses is reliable. JKD Products Inc is main harness supplier of Load Trailer and PJ trailers.

CURT MANUFACTURING LLC

Location: 6208 Industrial Drive Eau Claire, WI 54701 USA

CURT Manufacturing, LLC manufactures towing products. The Company offers towing trailer hitches, ball mounts, cargo management, security, and Vehicle electrical Trailer wiring products. CURT Manufacturing serves customers in the United States and Canada.

CURT custom wiring allows you to outfit your vehicle with a standard connector for plugging in trailer wiring. Each T-connector is vehicle-specific and plugs into existing wiring without any splicing required.

All CURT custom wiring is also thoroughly tested for reliability.

Mar-Lan Industries

Location: 1624 W. Walnut Hill Ln, Irving, TX USA

Mar-Lan Industries is located in Irving, TX, United States and one of the largest, fully integrated wire harness and electrical panel manufacturer in North America and have been servicing our customers for over 50-years. Harnesses services include cutting, stripping and molding of various wire connectors and harnesses used in a wide range of industries such as Marine, Automotive, RV, Trailer Manufacturing, Truck and Van Accessory markets. Trailer wiring harness is mainly with Two Pole Flat Connectors, Three Pole Flat Connectors, Four Pole Flat Connectors, Five Pole Flat Connectors.

Vanguard Manufacturing Inc.

Location: 1975 Waldorf St NW Suite B Grand Rapids, MI 49544 USA

Vanguard Manufacturing Inc. was established in 1968 and is a division of the LYN-LAD Group, LTD.

Vanguard is a B2B wire harness and cable assembly’s manufacturer located in Grand Rapids, Michigan and build and stock many standard connectors in 7 Way, 5 Way and 4 Way Flat Connector Product Line.

Vanguard also stock many of our 4-way wishbone trailer harnesses to help keep their customers’ production lines running full time and provide customization services of trailer harness products to meet their special needs.

Cypress Industries

Location: 8027 Exchange Drive Austin, TX 78754 USA

Cypress Industries is a global, manufacturer of custom cable assemblies and wire harnesses, custom control panels, plastic injection molding, machining.

Cypress Industries build custom wiring harnesses for rigs of all types, from the lift trucks that load and unload ships to the semi-trailers.

Custom braiding equipment allows Cypress to craft the most rugged trailer wire harnesses available, keeping the cab in control of every part of the electrical system, from lights to braking.


Cypress also develops custom potting for harnesses or connectors to improve durability and minimize replacement costs, fabricating just the right materials for each application.

USA Harness Inc

Location: 1201 E Coke Road, Winnsboro, TX 75494 USA

USA Harness, Inc. provides electronic control systems. The Company offers trailer and wiring harnesses, L.E.D. lamps, and circuit products. USA Harness serves customers in the State of Texas.

USA Harness provides the finest electrical wiring harnesses to the heavy-duty commercial vehicle industry. From tagalong trailers to heavy duty off-road and military applications, our harnessing components meet and exceed industry standards.

USA Harness custom design and manufacture to your requirements, and deliver your product in an efficient, timely manner. 

WiringLabs

Location: 201, WiringLabs Factory,  Lanhai Street, Hi-Tech District, Yantai

WiringLabs is a trailer wire harness manufacturer in China, and its main service customers are American trailer manufacturers. At present, we have cooperated with many American trailer manufacturers for 5 years.

The trailer wiring harnesses are produced with all material and processed ways according to customer drawings and requirements. WiringLabs advantages of production cost and labor cost enable us to maintain a low cost and maintain strong competitiveness. 

At the same time, we focus on the innovation and research and development of trailer wiring harness products to continuously meet customers’ cost control and product quality improvement.

With our increase of trailer product categories and technical exchanges with customers, our company’s product quality and solutions have become more and more mature.

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