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
-
CUSTOM DYNAMICS Harness Extension - Smart 3-Play CD-TPU-EXT
CUSTOM DYNAMICS
$15.95If you're running multiple Custom Dynamics® lighting products and need independent control over run, brake, and turn functions, this harness extension is essential. The CD-TPU-EXT eliminates the...21200976- SKU:
- 21200976
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- POWER CONNECTION TYPE:
- CONNECTING HARNESS
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE HARNESS
- TYPE:
- EXTENSION
$15.95 -
CUSTOM DYNAMICS 4-Pin Trailer Wire Harness - Universal CD-TRAILER-HARN
CUSTOM DYNAMICS
$7.95Whether you're towing a race trailer, equipment hauler, or utility bed, a reliable electrical connection is non-negotiable. This Custom Dynamics harness eliminates the guesswork of splicing and...21200929- SKU:
- 21200929
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- WIRING HARNESS KIT
- RIDING STYLE:
- UTV
- TYPE:
- TRAILER HITCH
- UNITS:
- KIT
$7.95 -
CUSTOM DYNAMICS Wiring Harness - Harley Davidson RKINSTALL
CUSTOM DYNAMICS
$12.95Custom Dynamics LED fender tip kits transform your Harley's visual presence with integrated lighting while maintaining factory aesthetics. This wiring harness eliminates the guesswork of custom...21200887- SKU:
- 21200887
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- WIRE/CABLE LENGTH IMPERIAL:
- 12'
- RIDING STYLE:
- STREET
- TYPE:
- MARKER LIGHT
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- PRODUCT NAME:
- WIRE KIT
$12.95Qty in Cart: 0Quantity:Price:$12.95Subtotal: -
CUSTOM DYNAMICS Passing Lamp Control Harness - Harley Davidson TB-PLHLK-2
CUSTOM DYNAMICS
$19.95Stock Harley-Davidson headlamp switching logic cuts passing lamp power when you engage high beam—a safety compromise that reduces visibility during critical passing maneuvers. The CUSTOM DYNAMICS...21200870- SKU:
- 21200870
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- INCLUDES TERMINAL ENDS
- MODEL:
- TRUBEAM®
- PRODUCT NAME:
- WIRING HARNESS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- PASSING LAMP
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
CUSTOM DYNAMICS Passing Lamp Control Harness - Harley Davidson TB-PLHLK-1
CUSTOM DYNAMICS
$24.95Stock Harley-Davidson passing lamp circuits shut down when you switch to high beam—a safety liability that Custom Dynamics solves with this purpose-built control harness. By allowing your passing...21200869- SKU:
- 21200869
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- WIRING HARNESS
- TYPE:
- PASSING LAMP
- RIDING STYLE:
- STREET
- FEATURES:
- INCLUDES TERMINAL ENDS
- MODEL:
- TRUBEAM®
- UNITS:
- EACH
$24.95 -
CUSTOM DYNAMICS Headlight Adapter - FLHT/X/TG H4-TOUR-ADPT
CUSTOM DYNAMICS
$19.95If you're upgrading your FLHT/X/TG to a modern LED headlamp, this adapter is essential. The stock dual-halogen housing won't accommodate aftermarket H4-based units without proper integration, which...21200647- SKU:
- 21200647
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- WIRE/CABLE LENGTH IMPERIAL:
- 12'
- PRODUCT NAME:
- WIRING HARNESS
- TYPE:
- LED HEADLAMP ADAPTER
- UNITS:
- EACH
$19.95 -
CUSTOM DYNAMICS Mini Fuse Holder FUSE3PAK
CUSTOM DYNAMICS
$9.95Auxiliary electrical circuits demand reliable protection, and the CUSTOM DYNAMICS Mini Fuse Holder FUSE3PAK delivers exactly that without compromising on installation simplicity. Whether you're...21200638- SKU:
- 21200638
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- AMPS:
- 3 A
- FEATURES:
- FUSED
- RIDING STYLE:
- SNOW
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- CONNECTOR PIN COUNT:
- 2 PINS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- FUSE HOLDER
- TYPE:
- ATC
- UNITS:
- 5 PACK
$9.95 -
CUSTOM DYNAMICS Wiring Cage Clamps 3-Spot - 10PK CG23
CUSTOM DYNAMICS
$7.95Clean wiring harnesses are fundamental to reliable electrical systems in high-performance applications. These stainless steel wiring cage clamps provide secure, repeatable connections for multiple...21200562- SKU:
- 21200562
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- UNITS:
- 10 PACK
- WIRE GAUGE:
- 24 AWG
- WIRE/CABLE LENGTH IMPERIAL:
- 12'
- AMPS:
- 20 A
- CONNECTOR PIN COUNT:
- 3 PINS
- RIDING STYLE:
- SNOW
- TYPE:
- CAGE CLAMP
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- WIRING CONNECTOR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$7.95 -
CUSTOM DYNAMICS Wiring Cage Clamps 5-Spot - 10PK CG25
CUSTOM DYNAMICS
$9.95Clean, reliable wiring is non-negotiable in a performance build, and managing multiple circuits requires connectors you can trust. The CUSTOM DYNAMICS Wiring Cage Clamps consolidate up to five wires...21200561- SKU:
- 21200561
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- AMPS:
- 20 A
- CONNECTOR PIN COUNT:
- 5 PINS
- WIRE GAUGE:
- 24 AWG
- WIRE/CABLE LENGTH IMPERIAL:
- 12'
- PRODUCT NAME:
- WIRING CONNECTOR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- TYPE:
- CAGE CLAMP
- UNITS:
- 10 PACK
$9.95 -
CUSTOM DYNAMICS Leverlocks¢â€žÂ¢ - Accent Light Installation Kit CD101
CUSTOM DYNAMICS
$17.95Adding custom accent lighting transforms your vehicle's aesthetic while maintaining a professional appearance—but only if the installation is executed properly. The CUSTOM DYNAMICS Leverlocks¢â€žÂ¢...21200549- SKU:
- 21200549
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MODEL:
- LEVERLOCKZ
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- WIRING HARNESS
- RIDING STYLE:
- SNOW
- AMPS:
- 3 A
- FEATURES:
- FUSED
- FEATURES:
- INCLUDES TERMINAL ENDS
- TYPE:
- LED ACCENT LIGHTING KIT
- WIRE GAUGE:
- 18 AWG
- WIRE/CABLE LENGTH IMPERIAL:
- 12'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$17.95 -
CUSTOM DYNAMICS Posi-Lock Wire Connectors 20-22 Gauge - 6PK 604
CUSTOM DYNAMICS
$10.95Unreliable wire connections compromise electrical performance and create safety hazards in high-vibration racing environments. The CUSTOM DYNAMICS Posi-Lock Wire Connectors eliminate connection...21200548- SKU:
- 21200548
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- POSI-LOCK
- RIDING STYLE:
- OFF-ROAD
- WIRE GAUGE:
- 24-18 AWG
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRING CONNECTOR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- 6 PACK
- RIDING STYLE:
- SNOW
$10.95 -
CUSTOM DYNAMICS Magic Power Blocks¢â€žÂ¢ MPB
CUSTOM DYNAMICS
$10.95Adding aftermarket electrical accessories shouldn't mean drilling into your bike's wiring harness or relying on jury-rigged connections. The CUSTOM DYNAMICS Magic Power Blocks MPB gives you a clean,...21130318- SKU:
- 21130318
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- AMPS:
- 15 A
- MODEL:
- MAGIC POWER BLOKS
- TYPE:
- BATTERY
- PRODUCT NAME:
- TERMINAL BOX ASSEMBLY
- RIDING STYLE:
- SNOW
- VOLTS:
- 12 V
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- WIRE/CABLE LENGTH IMPERIAL:
- 16'
- COLOR/FINISH:
- GRAY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$10.95 -
COLONY Terminal Plate 9639-22
COLONY
$42.95A quality terminal plate is essential for maintaining clean electrical connections and preventing corrosion in high-vibration racing environments. The COLONY Terminal Plate 9639-22 arrives fully...DS189939- SKU:
- DS189939
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- COLOR/FINISH:
- BLACK
- CONNECTOR TYPE:
- THREADED
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- TERMINAL PLATE
- UNITS:
- KIT
$42.95 -
CUSTOM DYNAMICS Posi-Lock Wire Connectors 18-24 Gauge - 9PK 600
CUSTOM DYNAMICS
$10.95Reliable electrical connections are non-negotiable in high-performance applications where vibration, heat cycling, and demanding current loads constantly test your wiring integrity. The CUSTOM...21200547- SKU:
- 21200547
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- WIRING CONNECTOR
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 9 PACK
- WIRE GAUGE:
- 24-18 AWG
- MODEL:
- POSI-LOCK
- RIDING STYLE:
- SNOW
$10.95 -
DRAG SPECIALTIES Circuit Breaker - 40A - Harley Davidson MC-DRAG055
DRAG SPECIALTIES
$7.95A reliable circuit breaker is the backbone of your electrical system—protecting your bike's wiring harness and components from catastrophic damage due to shorts or overloads. The DRAG Specialties 40A...09131001- SKU:
- 09131001
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- CIRCUIT BREAKER
- AMPS:
- 40 A
- CONNECTOR TYPE:
- THREADED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$7.95Qty in Cart: 0Quantity:Price:$7.95Subtotal: -
DRAG SPECIALTIES Tachometer Wiring Kit - Harley Davidson DRAG008
DRAG SPECIALTIES
$5.95If you're upgrading to a combination speedometer and tachometer setup, you need a wiring harness that's engineered for reliability—not improvised with splice tape and crossed fingers. This Drag...21200348- SKU:
- 21200348
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- WIRING HARNESS
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- TYPE:
- TACHOMETER
$5.95 -
DRAG SPECIALTIES Circuit Breaker - 30A - Harley Davidson MC-DRAG019
DRAG SPECIALTIES
$7.95A faulty or undersized circuit breaker compromises your electrical system's ability to protect critical circuits from overload and short-circuit damage. The DRAG Specialties 30A Circuit Breaker is...DS325647- SKU:
- DS325647
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- AMPS:
- 30 A
- UNITS:
- EACH
- CONNECTOR TYPE:
- THREADED
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CIRCUIT BREAKER
$7.95Qty in Cart: 0Quantity:Price:$7.95Subtotal: -
NAMZ Speedometer and Instrument Extension Harness - 36" NSXH-CB36-A
NAMZ
$79.95Custom gauge clusters and relocated instrument panels are essential for purpose-built vehicles, but stock harnesses rarely accommodate your desired layout. The NAMZ Speedometer and Instrument...21201161- SKU:
- 21201161
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SPEEDOMETER AND INSTRUMENT EXTENSION HARNESS
- WIRE/CABLE LENGTH IMPERIAL:
- 36'
- RIDING STYLE:
- STREET
$79.95 -
On Sale
LA CHOPPERS Wire Harness - Handlebar - 33" LA-8997-33
LA CHOPPERS
MSRP: $89.99Now: $81.00Was: $89.99Upgrading to aftermarket 33" handlebars doesn't mean sacrificing factory electrical integration—this LA CHOPPERS wire harness ensures your switch housings communicate properly with your CAN-Bus...21201400- SKU:
- 21201400
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $89.99Now: $81.00Was: $89.99 -
On Sale
LA CHOPPERS Wire Harness - Handlebar - 36" LA-8997-36
LA CHOPPERS
MSRP: $94.99Now: $85.00Was: $94.99Installing aftermarket handlebars shouldn't require cutting wires or jerry-rigging connections—this LA CHOPPERS wire harness eliminates that headache entirely. By maintaining factory pinouts and...21201401- SKU:
- 21201401
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $94.99Now: $85.00Was: $94.99
