WIR-2000-KIT · Y-Style 3-Light Rewire Kit
Complete 4-Way Flat Harness · Peterson 3-Light Y-Harness · Jammy LED Markers · TecNiq License Light
Overview
The WIR-2000-KIT Y-Style 3-Light Rewire Kit is a ready-to-install LED wiring solution for small utility, landscape, and cargo trailers using a 4-way flat connector.
This kit includes two complementary harnesses that work together:
- Novalite 4-Way Flat Harness (01-8801-B) — carries power from the tow vehicle to the trailer frame; it’s the main feed line that powers the system.
- Peterson 3-Light Y-Harness (160-493) — splits that feed neatly at the rear, distributing power to the left, right, and center identification lights without splicing or guesswork.
Together, they form a streamlined circuit: the 4-way brings current in, the Y-harness organizes it out — a cleaner, faster, and more reliable setup than a hand-spliced wiring job.
Each kit also includes Jammy sealed LED marker lights and a TecNiq LED license plate light, giving your trailer modern brightness and DOT-approved durability. Perfect for restorations, shop builds, or weekend projects.
Features
- Complete Y-style rear harness with integrated 3-light distribution
- Pre-terminated 4-way flat plug for quick connection to tow vehicle
- DOT-approved LED marker and license lights
- Weather-sealed connectors and grommet mounts
- No-splice installation — plug, route, secure, done
- Compatible with all 12-volt trailer systems
Included Components
| Component | Part Number | Quantity |
|---|---|---|
| Peterson 3-Light Y-Harness | 160-493 | 1 |
| Jammy 2½″ Amber LED Marker Light Kit | J-25-AK | 2 |
| Jammy 2½″ Red LED Marker Light Kit | J-25-RK | 2 |
| TecNiq LED License Plate Light | L34-WC9B-1 | 1 |
| Novalite 4-Way Flat Harness | 01-8801-B | 1 |
Fitment and Use Cases
Designed for most small and mid-size trailers using a 4-way flat plug. Ideal for replacing incandescent wiring, upgrading to LED, or starting from scratch on a new build.
| Trailer Type | Typical Fitment |
|---|---|
| Utility / Landscape Trailer | Single-axle 4-way system, standard marker layout |
| Small Cargo or Enclosed Trailer | Y-harness fits standard rear light spacing |
| Boat Trailer | Freshwater use (not submersible rated) |
| Farm / Utility Wagon | Compatible with 12-volt towing systems |
| Custom Builds | Converts older incandescent wiring to LED without splicing |
Technical Specifications
| Specification | Detail |
|---|---|
| Harness Type | Peterson Y-style 3-light distribution |
| Plug Connector | 4-way flat (standard ground, left, right, tail) |
| Lighting Type | Sealed LED marker and license lights |
| Operating Voltage | 12 V DC |
| Wire Length | Approx. 25 ft overall harness length |
| Compatibility | Fits most 4-way trailer connectors and tow vehicles |
Installation Tips
- Route the 4-way harness first — it’s your main power line from the vehicle.
- Mount the Y-harness at the rear crossmember to split the circuits left, right, and center.
- Secure wiring along the trailer frame with zip ties or clips.
- Ensure a clean ground connection from harness to trailer frame.
- Test lights before travel and apply dielectric grease to connectors for corrosion resistance.
Common Questions
Q: Why do I need both the 4-way and the Y-harness?
A: The 4-way brings power from your tow vehicle; the Y-harness distributes it at the rear to left, right, and center lights. Using both eliminates splicing, speeds installation, and prevents wiring errors.
Q: Can I use this kit on a boat trailer?
A: Yes, for freshwater or light-duty marine use. For submersible setups, choose our WIR-4000-KIT Marine LED Rewire Kit.
Q: Does this work with older vehicles?
A: Yes, the 4-way flat connector fits most trucks and SUVs without adapters.
Q: Do I need extra wire?
A: For trailers longer than 20 ft, an extension harness may be required.
Shipping
We ship quickly and carefully, with tracking provided on every order. Most items ship the same or next business day. Your parts will arrive safely and on time, ready to use.
Returns & Guarantee
Your satisfaction is guaranteed. Returns, refunds, and exchanges are accepted — no hassle. We stand behind every part we sell, so you can purchase with confidence.
Committed to Customer Service
At R and P Carriages, we believe in treating our customers like family. Whether you need a small replacement part or a complete trailer service, we’re here to help with friendly, expert support every step of the way.
