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Oct 30, 2020
Very good buy , great replacement on my 99 FXD that had no Brake light or blinkers this purchase fixed all five lighting problems
NAMZ CUSTOM CYCLE
SKU: 850-09071
NAMZ Custom Cycle Trailer Isolator 8-Position Multilock - 5-Wire or 4-Pin Flat
$125.95
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About NAMZ Custom Cycle
NAMZ Custom Cycle builds plug-and-play wiring harnesses, extension kits and electrical components for Harley-Davidson. Its handlebar extension and connector kits are what make an ape hanger or bagger bar swap a bolt-in job instead of a splicing project.
Ensure the longevity of your V-twin's electrical system when towing with the NAMZ Custom Cycle Trailer Isolator. This 8-position multilock relay module directly powers your trailer lights from the motorcycle battery, safeguarding your OEM turn signal module.
Why riders pick this
- Powers trailer lights directly from battery
- Protects OEM turn signal module from overload
- Features a robust 4-relay isolation bank
- Available in 5-wire or 4-pin flat connector options
- Prevents premature factory electrical failure
Towing a trailer can put undue stress on your motorcycle's factory turn signal module, potentially leading to premature failure. The NAMZ Trailer Isolator mitigates this risk by providing a dedicated power source for your trailer's lights. Its robust 4-relay bank handles the load, keeping your bike's sensitive electronics protected.
Reliable Trailer Light Isolation
- Draws power directly from the motorcycle battery, not the OEM turn signal module
- Utilizes a 4-relay bank to isolate the trailer load from factory electrics
- Prevents premature factory module failure when towing a trailer
- Available in both 5-wire and 4-pin flat connector configurations
Essential for Towing V-Twins
Whether you're hauling a small utility trailer or a camping setup, this NAMZ Trailer Isolator is a critical component for any V-twin owner who tows. It ensures your trailer lights function flawlessly without compromising your motorcycle's electrical integrity. Choose the configuration that matches your trailer's wiring for a seamless connection.
Specifications
- Brand: NAMZ Custom Cycle
- Manufacturer Part #: NTI-01
- UPC: 810088716416
- Length: 12 in
- Width: 6 in
- Height: 2 in
- Weight: 0.75 lbs
Common questions
Why is a trailer isolator necessary?
It protects your OEM turn signal module by routing trailer light power directly from the battery through relays, preventing the factory module from overheating and failing under trailer load.
What connector options are available?
NAMZ offers this isolator in a 5-wire configuration or with a 4-pin flat connector to suit various trailer setups.
Will this work with any Harley or Indian V-twin?
This is a universal isolator for V-twins that requires an 8-position multilock connection. Always confirm fitment with your specific motorcycle and trailer setup.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | NAMZ Custom Cycle |
| TYPE | Electrical |
| SKU | 850-09071 |
| WEIGHT | 0.75 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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