NAMZ Custom Cycle Namz Trailer Isolators - Isolator 6-PIN Molex Flhtcu/Flhx/FLT… — Harley-Davidson (1955-2026)

NAMZ Custom Cycle trailer isolator draws power directly from the battery and relays brake, running light, and turn signal inputs to a 4-pin molded connector for safe trailer operation. Uses a bank of 4 relays to isolate trailer loads from the OEM turn signal module, preventing premature module failure and expensive repairs.

Features

• 4-wire output with molded flat 4-pin connector
• Left/brake, right/brake, run, and ground wires
• Battery-direct power draw eliminates load on OEM turn signal module
• 12 inches long, compact mounting footprint

Specifications

• Brand: NAMZ Custom Cycle
• Manufacturer Part #: NTI-4-5
• UPC: 810088716492
• Connector Type: 4-pin Molex
• Length: 12 in
• Width: 6 in
• Height: 2 in
• Weight: 0.35 lbs

Frequently Asked Questions

Why do I need a trailer isolator?

A trailer isolator prevents your OEM turn signal module from failing prematurely by drawing trailer power directly from the battery instead of routing through the factory module.

What does this isolator connect to?

The 4-pin output feeds left/brake, right/brake, run, and ground signals to your trailer connector or auxiliary wiring harness.

Will this work with my factory Harley electrical system?

Yes — the isolator taps into the battery and brake/turn signal lines to create a clean, isolated circuit for trailer lighting without stressing stock components.

How many relays does it use?

Four relays handle the signal and power distribution to protect your motorcycle's electrical system.