NAMZ Custom Cycle Namz Trailer Isolators - Isolator ALL Flhr 14-UP — Harley-Davidson Road King, Road King Special, Road King Classic (2014-2025)

NAMZ Trailer Isolator for Harley-Davidson FLHR models 2014 and up, a relay-based module that protects your OEM turn signal module by drawing trailer signal power directly from the battery instead of through factory circuits. Prevents premature module failure when towing.

Features

• Draws power from battery, not OEM turn signal module
• 4-relay bank isolates trailer signals
• Protects factory turn signal module from overload
• 12 in × 6 in × 2 in compact size

Specifications

• Brand: NAMZ Custom Cycle
• Manufacturer Part #: NTIC-07
• UPC: 810088716539
• Length: 12 in
• Width: 6 in
• Height: 2 in
• Weight: 0.5 lbs

Fitment

Fits Harley-Davidson FLHR models 2014 and newer.

Frequently Asked Questions

Why do I need a trailer isolator?

It protects your factory turn signal module from overload by routing trailer signal current through relays powered by the battery, rather than through the OEM module circuits.

What connector does this use?

NAMZ offers two styles: a 5-wire output (left, right, brake, turn, ground) and a 4-wire flat connector (left/brake, right/brake, run, ground). Verify which fits your trailer wiring before ordering.

Will this prevent my turn signal module from failing?

Yes — by isolating trailer loads, it eliminates the main cause of premature OEM module failure on tow bikes.

Is installation difficult?

Installation requires routing battery power and brake/signal taps to the isolator. Consult the wiring diagram or have a shop experienced with Harley trailer installs do the work.