Semi Truck Trailer Wiring Harness & Parts
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- United Pacific®Die Cast Light Housing (35001)Universal Die Cast Light Housing (35001) by United Pacific®. 1 Piece. This light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$15.40
- United Pacific®Die Cast Light Housing (35002)Universal Die Cast Light Housing (35002) by United Pacific®. 1 Piece. This light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.36
- United Pacific®Double Contact Pigtail (34202P)Universal Double Contact Pigtail by United Pacific®. 1 Piece. This product is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$2.75
- United Pacific®Electrical Flasher (40006)Universal Electrical Flasher by United Pacific®. 1 Piece. 12V DC. This flasher is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will...12 volt electrical flasherHeavy duty input lead must be fused$9.85
- United Pacific®Flange Round Mounting Bezel for Light (20544)Universal Flange Round Mounting Bezel for Light by United Pacific®. 1 Piece. This product is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...Highly polished 304 grade stainless steelIncludes stainless steel hardware$8.55
- United Pacific®Grakon 1000 Mount Base for Light (39208B)Universal Grakon 1000 Mount Base for Light (39208B) by United Pacific®. Flush. This mount base is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers...2 possible mounting positionsMounting studs can be 1 13/16" or 3" apart$10.97
- United Pacific®Grakon 1000 Mount Base for Light (39209B)Universal Grakon 1000 Mount Base for Light (39209B) by United Pacific®. Flush. This mount base is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers...2 possible mounting positionsMounting studs can be 1 13/16" or 3" apart$10.47
- United Pacific®Holder for Light (30921)Universal Holder for Light by United Pacific®. 1 Piece. This light holder is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will meet...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.55
- United Pacific®Housing for 6.5" LED Light Bar (30890B)Universal Housing for 6.5" LED Light Bar by United Pacific®. 1 Piece. This light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.04
- United Pacific®Housing for LED Light Bar (30495B)Universal Housing for LED Light Bar by United Pacific®. 1 Piece. This light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...For flush mount on any flat surfaceUniversal application, stainless steel mounting screws can be adjusted to accommodate mounting distance from 2 3/8”-4 7/8” apart$13.35
- United Pacific®Housing for LED Light Bar (30494B)Universal Housing for LED Light Bar by United Pacific®. 1 Piece. This light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...For flush mount on any flat surfaceUniversal application, stainless steel mounting screws can be adjusted to accommodate mounting distance from 4 1/2"-7 3/8" apart$13.82
- United Pacific®Housing for Light (30946-1)Universal Housing for Light by United Pacific®. 1 Piece. This light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$39.82
- United Pacific®Housing for Light (30956-1)Universal Housing for Light by United Pacific®. 1 Piece. This light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$69.71
- United Pacific®Housing for Light (30927-1)Universal Housing for Light by United Pacific®. 1 Piece. This light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$38.17
- United Pacific®Housing for Light Bar (30932B)Universal Housing for Light Bar (30932B) by United Pacific®. 1 Piece. This light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...For flush mount on any flat surfaceDesigned to deliver trouble-free, consistent performance$7.94
- United Pacific®Housing for Light Bar (30945B)Universal Housing for Light Bar by United Pacific®. 1 Piece. This light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.94
- United Pacific®Housing for Light Bar (37880B)Universal Housing for Light Bar by United Pacific®. 1 Piece. This light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It...Mounting studs are 2 1/8" apartDesigned to deliver trouble-free, consistent performance$13.59
- United Pacific®Housing for Light Bar (30932)Universal Housing for Light Bar (30932) by United Pacific®. 1 Piece. This light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...For flush mount on any flat surfaceDesigned to deliver trouble-free, consistent performance$8.49
- United Pacific®Housing for Tail Light (39544B)Universal Housing for Tail Light by United Pacific®. 1 Piece. This tail light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind....Single stud mounting, hard wired with three 0.180 bullet plugsSpecially designed for up watermelon lens$24.84
- United Pacific®Housing for Tail Light (30568-1)Universal Housing for Tail Light by United Pacific®. 1 Piece. This tail light housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$17.87
- United Pacific®Housing for Tail Light Bar (39200B)Universal Housing for Tail Light Bar by United Pacific®. 1 Piece. This tail light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers...Mounting studs are 2 1/8" apartDesigned to deliver trouble-free, consistent performance$17.24
- United Pacific®Housing for Tail Light Bar (30933B)Universal Housing for Tail Light Bar (30933B) by United Pacific®. 1 Piece. This tail light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with...For flush mount on any flat surfaceDesigned to deliver trouble-free, consistent performance$14.05
- United Pacific®Housing for Tail Light Bar (39203B)Universal Housing for Tail Light Bar (39203B) by United Pacific®. 1 Piece. This tail light bar housing is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with...Mounting studs are 2 1/8" apartDesigned to deliver trouble-free, consistent performance$21.00
- United Pacific®Light Bar Bezel for Light Bar (34059B)Universal Light Bar Bezel for Light Bar by United Pacific®. 1 Piece. This light bar bezel is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in...Double sided tape mountDesigned to deliver trouble-free, consistent performance$13.82
- United Pacific®Light Bezel (10501)Universal Light Bezel by United Pacific®. 1 Piece. This light bezel is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and with customers in mind. It will meet your...Specially design to mount lights without the need of rubber grommetsDesigned to deliver trouble-free, consistent performance$2.92
- United Pacific®Light Brackets for Backup lights (29072)Universal Light Brackets for Backup lights by United Pacific®. From housings, LED headlight brackets, lens guards, light brackets, to mounting brackets for clearance/marker lights, you name it and United Pacific is your source for all...Stainless steel backup light bracket for International trucks430 stainless steel$74.11
- United Pacific®Marker Light Mount for Marker Light (33006)Universal Marker Light Mount for Marker Light (33006) by United Pacific®. 1 Piece. This marker light mount is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$2.37
- United Pacific®Marker Light Mount for Marker Light (33003B)Universal Marker Light Mount for Marker Light (33003B) by United Pacific®. 1 Piece. This marker light mount is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$1.61
- United Pacific®Marker Light Mount for Marker Light (33002P)Universal Marker Light Mount for Marker Light (33002P) by United Pacific®. 1 Piece. This marker light mount is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and...Available for 1 bulb small rectangular clearance/marker lightDesigned to deliver trouble-free, consistent performance$4.00
- United Pacific®Marker Light Mount for Marker Light (33002)Universal Marker Light Mount for Marker Light (33002) by United Pacific®. 1 Piece. This marker light mount is made of high-quality materials to serve you for years to come. This product designed using state-of-the-art technology and...Available for 1 bulb small rectangular clearance/marker lightDesigned to deliver trouble-free, consistent performance$2.04
Semi truck trailers are exposed to a tremendous amount of heat and pressure and tons of mud, sand, and debris. All parts of a trailer, including the lighting wiring harness, must be able to withstand the stress they undergo. Failure or damage in any of the components can undermine the lights' performance. We understand the full range of abuse your semi truck trailer endures and offer a range of reliable wires and components to keep your lighting system running, whatever comes your way. Whether you want to replace the old wiring, slightly upgrade the wiring system or get a custom harness assembly, we have you covered.
The wiring harness itself is an organized set of wires, terminals, and connectors that run all the way around the trailer and serve the purpose to carry power and transfer signals to various components of the lighting system, thereby playing a critical role in the overall operation. To put the highest grade products in the hands of our customers, we cooperate with prominent manufacturers using cutting-edge technologies and up-to-date equipment. Apart from wires on our digital shelves, you can find superior lighting modules, adaptor plugs, fuses, and relays. We also provide a host of grommets, brackets, gaskets, snap rings, sleeves, clamps, seals, and many, many more.
All wiring harness and components we offer are made using heavy-duty materials to ensure durability and robustness demanded by harsh driving conditions you face on a day-to-day basis. They are ready to handle high temperatures, vibration, noise, and moisture. The wires will reliably relay signals and electric power, accurately and rapidly assembling connections. Made to strict industry standards with longevity in mind, all products guarantee to faithfully serve you for years to come. So, when looking for reliable harness or wiring components for your trailer lighting system, look no further. We have the products you can trust.
To help you securely connect your wires or cables and provide the terminals with necessary insulation we offer a bunch of high-grade connectors. They are resistant to the harsh environment and water intrusion. On our website, you can also get top-grade grommets used to protect the wires when they are routed through the trailer as well as to waterproof the wires if the sealing agent is provided below it. The grommets are impervious to chemicals, salt sprays, and heat. To support and fix up wires firmly, choose from our first-rate clamps. And to keep cables manageable in the assembly, get superior wire harness clips.
Apart from high dependability, the wires ensure ease of use and maximum effectiveness. They offer effortless and worry-free installation that won't take much of your time. You will be able to quickly connect the wires of all your trailer lights and enjoy their smooth, consistent performance. Whether you need to connect the tail, tow, turn signal, reverse, or clearance and marker lights, we have the right wires to meet your needs. And don't forget about numerous high-grade wiring components we stock. They will help you complete your replacement project or custom upgrade of your trailer lighting system.