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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- Price
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NAMZ 25' GXL Wire Spool - 12 Gauge - Violet NGWR-712
NAMZ
$45.95Reliable wiring is the foundation of any custom automotive electrical system, and undersized or substandard wire creates heat, voltage drop, and potential safety hazards. The NAMZ 25' GXL Wire Spool...21201291- SKU:
- 21201291
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$45.95 -
NAMZ 25' GXL Wire Spool - 16 Gauge - Violet NGWR-716
NAMZ
$28.95Building a custom wiring harness or tackling an electrical upgrade demands wire that can handle temperature extremes and deliver reliable current delivery without compromise. NAMZ GXL wire delivers...21201307- SKU:
- 21201307
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
$28.95 -
NAMZ 25' GXL Wire Spool - 16 Gauge - White NGWR-916
NAMZ
$28.95Reliable wiring is the foundation of any professional electrical system, whether you're building a custom harness or upgrading factory connections. NAMZ GXL wire delivers consistent performance...21201308- SKU:
- 21201308
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
$28.95 -
CUSTOM DYNAMICS Rear Fender Adapter CD-BCM-SS6
CUSTOM DYNAMICS
$39.95Swapping your rear fender shouldn't require rewiring your entire lighting harness or fabricating custom connectors. The CUSTOM DYNAMICS Rear Fender Adapter eliminates guesswork by providing a direct,...21201340- SKU:
- 21201340
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$39.95 -
CUSTOM DYNAMICS Run/Turn Signal Adapter - Front - '06-'13 FLH MPR-13-FTS
CUSTOM DYNAMICS
$24.95If you're upgrading your '06-'13 FLH with Custom Dynamics lighting products, you need a reliable connection point to your OEM electrical system. This adapter harness gives you direct access to run...21201342- SKU:
- 21201342
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$24.95 -
CUSTOM DYNAMICS Run/Turn Signal Adapter - Front - '96-'05 FLHT '93-'17 Softail MPR-ST-FTS
CUSTOM DYNAMICS
$24.95If you're upgrading to Custom Dynamics lighting on your Harley, you need a reliable connection point to your OEM electrical system. This adapter harness eliminates guesswork by providing direct...21201343- SKU:
- 21201343
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$24.95 -
SADDLE TRAMP Amplifier Wiring Kit - Front Fairing - FLH/FLT BC-9703
SADDLE TRAMP
$48.98Installing quality amplifier wiring in your front fairing is critical for reliable power delivery and audio performance. This SADDLE TRAMP kit eliminates guesswork with pre-engineered harness...44021015- SKU:
- 44021015
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
$48.98Qty in Cart: 0Quantity:Price:$48.98Subtotal: -
SADDLE TRAMP Wiring Harness - Front Speaker Pods - '14-'22 FLH/FLT BC-9712
SADDLE TRAMP
$21.95If you're upgrading your '14-'22 FLH/FLT with quality front speaker pods, you need a harness that matches the durability of your build—not some flimsy aftermarket connector setup prone to water...44021017- SKU:
- 44021017
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$21.95 -
SADDLE TRAMP Wiring Harness w/Disconnects - Front Speaker Pods - '14-'22 FLH/FLT BC-9714
SADDLE TRAMP
$29.95If you're upgrading your front speaker system on your '14-'22 FLH/FLT, a quality wiring harness is non-negotiable—poor connections lead to sound dropout, impedance issues, and premature speaker...44021018- SKU:
- 44021018
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
$29.95 -
SADDLE TRAMP Rear Audio T-Harness - '14-'22 FLHTK BC-9717
SADDLE TRAMP
$64.95If you're upgrading your '14-'22 FLHTK with aftermarket audio, factory wiring harnesses create installation headaches and potential damage to OEM components. The SADDLE TRAMP Rear Audio T-Harness...44021019- SKU:
- 44021019
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
SADDLE TRAMP Accessory T-Harness - '14-'22 Touring BC-9718
SADDLE TRAMP
$9.73Installing aftermarket accessories shouldn't require cutting into your factory wiring harness—that's where the SADDLE TRAMP Accessory T-Harness comes in. This plug-and-play solution taps directly...44021020- SKU:
- 44021020
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$9.73 -
CUSTOM DYNAMICS Extension Harness - Throttle-By-Wire - 4" CD-ST-TBW4-HARN
CUSTOM DYNAMICS
$29.95Installing taller handlebars on a throttle-by-wire equipped bike shouldn't force you into rewiring your entire system. The Custom Dynamics Extension Harness solves this with a straightforward 4"...21201358- SKU:
- 21201358
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
$29.95 -
CUSTOM DYNAMICS Extension Harness - Throttle-By-Wire - 8" CD-ST-TBW8-HARN
CUSTOM DYNAMICS
$29.95When upgrading to taller handlebars, your stock throttle-by-wire harness falls short—literally. This 8" extension harness bridges that gap without requiring wire splicing or modification, keeping...21201359- SKU:
- 21201359
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$29.95 -
CUSTOM DYNAMICS Extension Harness - Speedometer/Instrument - 36" CD-ST-SP-HARN
CUSTOM DYNAMICS
$29.95If you're upgrading to taller handlebars on your motorcycle, your factory speedometer harness won't reach—leaving you with exposed wiring or incomplete gauge functionality. This CUSTOM DYNAMICS...21201360- SKU:
- 21201360
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$29.95 -
CIRO Harness - 4-Way Splitter - Front End Lighting 40093
CIRO
$32.99If you're running multiple Ciro front-end lighting fixtures, managing individual wiring harnesses becomes unnecessarily complex. This 4-way splitter consolidates your lighting circuits into a single,...21201362- SKU:
- 21201362
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
$32.99 -
NAMZ Wire Harness - Tour Pak - FLHX/FLTR NCTP-SR23
NAMZ
$83.95Installing or swapping a tour pack shouldn't mean rewiring your entire electrical system. The NAMZ Wire Harness eliminates custom fabrication by delivering a complete, plug-and-play solution that...21201384- SKU:
- 21201384
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$83.95 -
NAMZ Tour Pak Harness - FLHX/FLTR NCTP-SR23-SM
NAMZ
$99.95Adding a tour pak to your FLHX or FLTR requires proper electrical integration to ensure all lighting functions operate correctly. This complete wiring kit eliminates guesswork by providing a...21201385- SKU:
- 21201385
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
NAMZ Wire Harness - Speedometer - +15" - Softail NSPH-FX30
NAMZ
$66.45Custom speedometer placement is essential when you're reconfiguring your Softail's cockpit for ergonomics or aesthetics. The NAMZ +15" extension harness eliminates the guesswork of fabricating custom...21201386- SKU:
- 21201386
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$66.45 -
NAMZ Wire Harness - Handlebar/Gauge - FLHX/FLTR NCPK-01
NAMZ
$341.95A factory-quality handlebar wiring harness saves hours of custom fabrication while ensuring proper fitment and function on your FLHX or FLTR. The pre-assembled switch wiring, speedometer extension,...21201388- SKU:
- 21201388
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
$341.95 -
NAMZ Wire Harness - Speedometer/Tachometer - +15" - Softail NSTPH-FX30
NAMZ
$75.95Custom gauge placement is essential for optimal instrument visibility and cockpit ergonomics on your Softail build. This extended harness eliminates the guesswork of aftermarket gauge installation by...21201389- SKU:
- 21201389
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$75.95
