NAMZ Custom Cycle Namz Trailer Isolators - Isolator 5-4 ALL Flhx/FLT 10-UP — Harley-Davidson (2010-2026)

NAMZ Custom Cycle Trailer Isolator intercepts brake, turn signal, and running light signals from your battery, routing them through a bank of 4 relays before sending to the trailer. This protects your OEM turn signal module from the extra load of trailer wiring, preventing premature failure and expensive module replacement.

Features

• Draws relay power directly from battery, not OEM turn signal module
• Available in 5-wire or 4-pin flat connector configurations
• Processes brake, turn signal, and running light circuits
• 12 in × 6 in × 2 in compact housing

Specifications

• Brand: NAMZ Custom Cycle
• Manufacturer Part #: NTIC-03
• UPC: 810088716522
• Length: 12 in
• Width: 6 in
• Height: 2 in
• Weight: 0.5 lbs

Frequently Asked Questions

Why do I need a trailer isolator?

It protects your OEM turn signal module by drawing relay power from the battery instead of overloading your factory module with trailer current, preventing costly premature failure.

What wire configurations are available?

5-wire output with separate left, right, brake, turn and ground, or a 4-pin flat connector combining left/brake, right/brake, run and ground.

Does this work with aftermarket turn signal modules?

Yes. The isolator protects any OEM or aftermarket turn signal module by isolating trailer load from your bike's electrical system.

What's included in the box?

The isolator unit with relay bank and wiring harness — ready to splice into your battery and trailer connector.