Towing & Trailer Wiring Experts – Your Local Leader in Tow Wiring, Lighting, and Hitches
At Millennium Linings, we are proud to be the area’s premier retailer, installer, and diagnostic service center for vehicle towing wiring, trailer lighting, brake systems, and hitch setups. Whether you're hauling a utility trailer, camper, boat, or heavy-duty equipment, we provide professional-grade products, expert installations, and reliable diagnostics and repairs to keep you safe and compliant on the road.
Complete Trailer Wiring & Lighting Solutions
Your trailer’s electrical system is critical for safety, legal compliance, and towing performance. Our team specializes in custom and universal wiring installations, trailer lighting upgrades, and electrical diagnostics for both vehicles and trailers.
⚙️ Trailer Wiring Connectors We Install & Service:
• 4-Pin Flat – For small trailers without brakes
• 5-Pin Flat/Round – Adds reverse or brake function
• 6-Pin Round – Supports electric brakes and battery charging
• 7-Pin Round/RV Blade – Standard for electric brake systems, reverse lights, and auxiliary power
• Adapters – For connector compatibility between vehicle and trailer
Trailer Wiring Installation Options:
• Custom Vehicle-Specific Harnesses – Plug-and-play
• Splice-In Wiring – Universal and cost-effective
• Converters (Modulite/Powered) – Prevent system overload, protect electronics
Trailer Lighting Systems – Safe, Legal, and Built to Last
We install DOT-compliant trailer lighting for all trailer sizes and types.
Lighting Options Include:
• Tail, Brake & Turn Signal Lights
• Reverse Lights
• Side Marker & Clearance Lights
• License Plate & ID Lights
• LED Upgrades for Durability and Efficiency
• Work & Cargo Interior Lighting
Our team also offers lighting diagnostics to identify and resolve issues like flickering, short circuits, or non-functioning LEDs.
Trailer Brake Repair & Maintenance Services
Safety starts with stopping power. Trailer brakes are essential when towing heavier loads, and faulty brake systems put your vehicle, cargo, and others at risk. At Millennium Linings, we provide expert diagnostics, repairs, and upgrades for all types of trailer braking systems.
Our Trailer Brake Services Include:
• Electric brake system diagnostics & repair
• Brake magnet and hub inspection
• Brake controller installation & testing
• Wiring and connector repair for brake signals
• Brake drum cleaning, lubrication, and adjustment
• Complete electric brake kit replacement (when needed)
Whether you're experiencing uneven braking, no trailer brake response, or controller error codes, we’ll troubleshoot the system and restore safe, reliable braking performance.
⚖️ Hitch Systems for Every Tow Job
We install and service all major hitch types, ensuring safe, efficient towing for every application—from daily hauling to heavy-duty commercial use.
⚒️ Hitch Types We Specialize In:
• Receiver Hitches (Class I–V)
• 5th Wheel Hitches
• Gooseneck Hitches
• Weight Distribution Hitches
• Pintle Hitches
We also offer hitch-mounted accessories including brake controllers, sway control kits, and jack upgrades.
Diagnostic & Repair Services
Towing issues can be caused by anything from corroded connectors to bad grounds or failing brake controllers. Our certified technicians provide:
• Electrical diagnostics for trailer and vehicle wiring
• Brake controller troubleshooting
• Plug & socket testing or replacement
• Grounding and continuity testing
• Trailer light repairs or rewiring
• Hitch system inspection and torque adjustment
• Complete trailer brake system troubleshooting and repair
Who We Serve
We proudly serve customers across Indianapolis, including:
• RV & camper owners
• Boat & motorsport enthusiasts
• Contractors & tradesmen
• Agricultural & farm equipment haulers
• Municipal and emergency fleet departments
• Commercial towing operators