✓ VERIFIED
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: 850-09083
NAMZ Custom Cycle Trailer Isolator for FLHR - Harley Road King
$125.95
Free shipping on orders $99+ · Best value guarantee
affirm
From $10.49/mo with Affirm.
See if you prequalify
IN STOCK
— Ships within 24 hours
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returns — see policy
Authorized Dealer — sourced direct
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.
The NAMZ Trailer Isolator for Harley-Davidson FLHR models is a crucial relay-based module designed to protect your motorcycle's OEM turn signal module. When towing, it draws all trailer signal power directly from the battery, rather than forcing it through your factory circuits. This prevents premature module failure, a common and costly issue for riders who frequently tow.
Why riders pick this
- Protects OEM turn signal module on FLHR models
- Draws power directly from the motorcycle battery
- Four-relay isolation bank for trailer signals
- Prevents electrical overload and module failure
- Designed specifically for Harley Road King
Harley-Davidson Road King models, while built for the open road, can experience electrical strain when towing a trailer without proper isolation. The NAMZ Trailer Isolator specifically addresses this by creating a dedicated pathway for trailer lighting current. This ensures your factory turn signal module is never subjected to excessive loads, preserving its lifespan and avoiding unexpected breakdowns.
Essential Protection for Your Road King
- Draws trailer power directly from the battery, not the OEM turn signal module
- Features a robust 4-relay bank to isolate all trailer signals
- Specifically engineered to protect the factory turn signal module from overload
- Compact size for easy and discreet installation
Tailored for Harley FLHR Models
This isolator is precisely designed for Harley-Davidson FLHR Road King models, providing a direct and effective solution for towing. By routing trailer current through its own relay system, it maintains the integrity of your bike's sensitive electrical components. NAMZ offers this isolator with different connector styles, allowing you to choose the one that perfectly matches your trailer's wiring setup for a secure and reliable connection.
Specifications
- Brand: NAMZ Custom Cycle
- Manufacturer Part #: NTIC-07
- UPC: 810088716539
- Length: 12 in
- Width: 6 in
- Height: 2 in
- Weight: 0.5 lbs
Common 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.
Is this isolator specific to Road King models?
Yes, this NAMZ Trailer Isolator is specifically designed for Harley-Davidson FLHR Road King models. Always confirm compatibility with your specific year and model using our Shop by Bike tool.
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 | 850-09083 |
| WEIGHT | 0.5 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
1 RATING
5★
1
4★
0
3★
0
2★
0
1★
0
