Harley Wiring Group
Harley Bike Wiring Groups at JJ Motorsports
Simplify your Harley's electrical upgrades with premium wiring extensions and connectors from JJ Motorsports, featuring plug-and-play harnesses and mating plugs for clean handlebar swaps, throttle-by-wire conversions, and accessory additions on Touring, Softail, Dyna, and Sportster models. These high-quality NAMZ components ensure reliable connections without cutting stock wiring.
Shop NAMZ wiring groups for race-proven reliability. Explore related categories such as Harley lights and electrical for batteries and switches, or Harley for handlebars and levers to complete your electrical refresh.
Top Harley Wiring Groups
- NAMZ Mating Connectors NMD-410017 – Universal mating connector set; weatherproof plugs for custom wiring on Twin Cam and M8 models.
- NAMZ Throttle by Wire Extension Harness Harley-Davidson NTBW-4202 – TBW extension harness for 2014+ Touring; 8-inch length for clean lever swaps.
- NAMZ Handlebar Wiring Extension 8" 96-06 FL NHCX-DB08 – 8-inch extension for 1996-2006 Touring; pre-wired for clutch and brake switches.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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NAMZ AMP Mate-n-Lock Connector 70291-89 - 4 Pin Male NA-1-480426-0
NAMZ
$0.95Reliable electrical connections are the foundation of any well-built harness or custom wiring installation. This OEM-style AMP Mate-n-Lock connector ensures secure, weatherproof connections that...21200420- SKU:
- 21200420
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$0.95 -
CUSTOM DYNAMICS Y-Harness - Brake/Turn Signal CD-STC-Y
CUSTOM DYNAMICS
$29.95If you're running a custom lighting setup with 3-wire turn signals, you need a reliable way to integrate brake signals without replacing your entire harness. The CUSTOM DYNAMICS Y-Harness bridges...21201164- SKU:
- 21201164
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$29.95 -
CIRO Splitter - Rear Lighting - 4-Way 40094
CIRO
$46.99If you're running multiple rear lighting accessories on your motorcycle or powersports vehicle, managing wiring becomes complex fast. The CIRO Splitter consolidates four separate light feeds into a...21201166- SKU:
- 21201166
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$46.99Qty in Cart: 0Quantity:Price:$46.99Subtotal: -
NAMZ Extension Harness - ABS N-FAXH-12
NAMZ
$19.95ABS wiring systems demand clean, organized routing—and factory harnesses often fall short of reach. The NAMZ Extension Harness eliminates guesswork by providing a straightforward 12" plug-and-play...21201165- SKU:
- 21201165
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$19.95 -
NAMZ Harness Kit - Turn Signal - White/Amber LED NCBH-02
NAMZ
$314.95A complete wiring harness is the foundation of a reliable electrical system—without it, even the best components fail. The NAMZ Harness Kit eliminates the guesswork of piecing together mismatched...21201403- SKU:
- 21201403
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
$314.95Qty in Cart: 0Quantity:Price:$314.95Subtotal: -
NAMZ Extension Harness - ABS - 12" - Front - FLHR N-FAXH-12RK
NAMZ
$19.95When you extend your front end, you can't just splice wires and hope the ABS system stays functional—improper connections compromise both safety and diagnostics. This NAMZ extension harness maintains...21201417- SKU:
- 21201417
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$19.95 -
NAMZ Connector Kit w/ Terminals - BCM - FLHX/FLTR NHD-69201932
NAMZ
$84.95If you're working with the Body Control Module (BCM) on your FLHX or FLTR, a quality connector kit isn't optional—it's essential. Corroded or damaged BCM connectors lead to electrical gremlins that...21201423- SKU:
- 21201423
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$84.95 -
NAMZ Female Connector - ECM - Female - 18-Position - Black NHD-72664-12
NAMZ
$12.95If you're fabricating a custom wiring harness or diagnosing ECM connector issues, a quality replacement connector is non-negotiable. The NAMZ Female Connector ensures reliable signal transmission and...21201425- SKU:
- 21201425
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
$12.95 -
NAMZ Connector - Engine Temp Sensor - Harley Davidson NHD-69201397
NAMZ
$8.95Accurate engine temperature monitoring is critical to protecting your Harley Davidson's motor from thermal stress and maximizing performance reliability. A compromised temperature sensor connector...21201420- SKU:
- 21201420
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$8.95 -
NAMZ Female Connector - ECM - Female - 18-Position - Brown NHD-69201415
NAMZ
$12.95A reliable ECM connector is critical to maintaining clean electrical signals throughout your engine management system. This NAMZ 18-position female connector ensures secure, corrosion-resistant...21201421- SKU:
- 21201421
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$12.95 -
NAMZ Female Connector - ECM - Female - 18-Position - Gray NHD-69201440
NAMZ
$12.95If you're building a custom harness or replacing a damaged ECM connector, you need a connector that matches OEM specs and delivers rock-solid electrical continuity. The NAMZ Female Connector ensures...21201422- SKU:
- 21201422
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$12.95 -
NAMZ Connector - Engine Temp Sensor - Female - Harley Davidson NM-CON-02P
NAMZ
$7.95A reliable engine temperature sensor connector is essential for accurate coolant temperature monitoring and proper fuel injection tuning on your Harley Davidson. This OEM-style female connector from...21201424- SKU:
- 21201424
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$7.95 -
NAMZ Bypass Kit - O2 Sensor N-O2BP
NAMZ
$19.95When upgrading to an aftermarket exhaust system, your OEM O2 sensors become incompatible with the new exhaust configuration, triggering check engine lights and potential performance issues. The NAMZ...21201169- SKU:
- 21201169
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
$19.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - CAN Bus - 8" CD-BAR-EXT-1
CUSTOM DYNAMICS
$34.95When you upgrade to extended handlebars, your OEM wiring harness falls short—literally. The Custom Dynamics Wire Extension eliminates the hassle of splicing or fabricating custom solutions by...21201170- SKU:
- 21201170
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$34.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - Throttle-By-Wire - 15" CD-BAR-EXT-2
CUSTOM DYNAMICS
$29.95Extended handlebars demand extended controls—stock throttle-by-wire harnesses won't reach, leaving you with either compromised routing or exposed splices. This Custom Dynamics wire extension...21201171- SKU:
- 21201171
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$29.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - Throttle-By-Wire - 12" CD-BAR-EXT-3
CUSTOM DYNAMICS
$29.95Extended handlebars transform your riding position and control, but OEM throttle-by-wire harnesses fall short of the reach. The Custom Dynamics Wire Extension eliminates the guesswork of custom...21201172- SKU:
- 21201172
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$29.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - Throttle-By-Wire - 8" CD-BAR-EXT-4
CUSTOM DYNAMICS
$29.95Extended handlebars demand extended control cables—running stock wiring will bind and restrict your throttle response. The CUSTOM DYNAMICS Wire Extension eliminates guesswork with pre-cut,...21201173- SKU:
- 21201173
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$29.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - CAN Bus - 15" CD-BAR-EXT-5
CUSTOM DYNAMICS
$49.95Extended handlebars are a popular modification for custom builds, but factory wiring rarely accommodates the extra reach. This extension harness eliminates the need for costly rewiring or makeshift...21201174- SKU:
- 21201174
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
$49.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - CAN Bus - 4" CD-BAR-EXT-6
CUSTOM DYNAMICS
$33.95Extended handlebars demand properly routed wiring—this pre-cut extension kit eliminates guesswork and saves hours of fabrication work. With factory color-matched wires and pre-installed Molex...21201175- SKU:
- 21201175
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$33.95 -
CUSTOM DYNAMICS Wire Extension - Handlebar - CAN Bus - 12" CD-BAR-EXT-7
CUSTOM DYNAMICS
$39.95When you extend your handlebars, your OEM wiring harness falls short—literally. The Custom Dynamics Wire Extension eliminates the headache of custom fabrication by providing pre-cut, color-matched...21201176- SKU:
- 21201176
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$39.95
