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!
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- Qty in Cart
- Quantity
- Price
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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 won't fail under vibration, heat, or demanding track...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 that gap, allowing your brake lights to trigger...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 single, organized connection point, eliminating tangled...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 extension, so you can run your ABS lines exactly where...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 wiring by delivering a purpose-built system with...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 full ABS integration while giving you the extra 12...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 are notoriously difficult to diagnose and costly to fix...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 secure terminal contact in mission-critical engine...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 can cause erratic readings, trigger false warning lights,...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 connections on OEM and custom harnesses, eliminating...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 clean, reliable connections without the guesswork of...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 NAMZ ensures secure, corrosion-resistant connections...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 Bypass Kit eliminates this problem by allowing you to...21201169- SKU:
- 21201169
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
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 providing pre-cut, color-matched leads that integrate...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 eliminates guesswork with pre-cut lengths and factory-matched...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 fabrication by delivering pre-cut, color-matched leads with...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, color-matched harnesses that integrate seamlessly into your...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 solutions by providing pre-cut, color-matched leads that...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 terminals, you get a plug-and-play solution that maintains OEM...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 leads ready to plug directly into your existing CAN Bus...21201176- SKU:
- 21201176
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$39.95
