NAMZ Custom Cycle Namz Trailer Isolators - Isolator 8-Position Multilock (5 Wir…

The NAMZ Trailer Isolator is an 8-position multilock relay module that powers trailer lights directly from your motorcycle battery instead of drawing from the OEM turn signal module. By relaying brake, running light, and turn signal power through a dedicated 4-relay bank, it prevents premature factory module failure on bikes towing a trailer.

Features

• Takes power directly from battery, not OEM turn signal module
• 4-relay bank isolates trailer load from factory electrics
• Available in 5-wire or 4-pin flat connector configurations
• 12 in × 6 in × 2 in compact housing

Specifications

• Brand: NAMZ Custom Cycle
• Manufacturer Part #: NTI-01
• UPC: 810088716416
• Length: 12 in
• Width: 6 in
• Height: 2 in
• Weight: 0.75 lbs

Frequently Asked Questions

Why do I need a trailer isolator?

It protects your OEM turn signal module by powering the trailer lights from the battery via relays instead of drawing through the factory module, which can overheat and fail under trailer load.

Will this work with my trailer's flat 4-pin connector?

Yes — NAMZ offers both a 5-wire configuration and a 4-pin flat connector version. Specify which you need when ordering.

Does this require a separate ground wire to the trailer?

Yes — ground is included in both 5-wire and 4-pin configurations and must be connected to complete the circuit.

Can I install this myself?

Basic installation requires splicing or soldering battery power and brake/turn signal inputs, plus grounding. If you're not comfortable with electrical work, have a shop install it.