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Wiring Group

Wiring Group

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

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
  • NAMZ Throttle-By-Wire Externsion Harness - Harley Davidson NTBW-J12

    NAMZ Throttle-By-Wire Externsion Harness - Harley Davidson NTBW-J12

    NAMZ

    $48.95
    Designed and tested to extend your wiring without causing any harm or interference to the motorcycle's computer when installing taller handlebars, Color coded to connect to the existing Molex connector; simply plug and play (except models with hardwired...
    21200838
    SKU:
    21200838
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    CONNECTOR TYPE:
    MOLEX
    WIRE/CABLE LENGTH IMPERIAL:
    12'
    CONNECTOR TYPE:
    PIN
    COLOR/FINISH:
    BLACK
    TYPE:
    THROTTLE-BY-WIRE
    UNITS:
    KIT
    PRODUCT NAME:
    WIRE HARNESS EXTENSION
    RIDING STYLE:
    STREET
    $48.95
    Qty in Cart: 0
    Quantity:
    Price:
    $48.95
    Subtotal:
  • NAMZ Throttle-By-Wire Externsion Harness - Harley Davidson NTBW-J15

    NAMZ Throttle-By-Wire Externsion Harness - Harley Davidson NTBW-J15

    NAMZ

    $52.95
    Designed and tested to extend your wiring without causing any harm or interference to the motorcycle's computer when installing taller handlebars, Color coded to connect to the existing Molex connector; simply plug and play (except models with hardwired...
    21200839
    SKU:
    21200839
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    CONNECTOR TYPE:
    MOLEX
    WIRE/CABLE LENGTH IMPERIAL:
    15'
    PRODUCT NAME:
    WIRE HARNESS EXTENSION
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    TYPE:
    THROTTLE-BY-WIRE
    UNITS:
    KIT
    CONNECTOR TYPE:
    PIN
    $52.95
    Qty in Cart: 0
    Quantity:
    Price:
    $52.95
    Subtotal:
  • NAMZ Handlebar Extension Harness 24" - Indian NHCX-I24

    NAMZ Handlebar Extension Harness 24" - Indian NHCX-I24

    NAMZ

    $89.95
    All the items needed to successfully extend the wiring to a set of OEM handlebar switches, 100% Plug-n-Play, Made in the U.S.A.
    21200867
    SKU:
    21200867
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    PRODUCT NAME:
    WIRE HARNESS EXTENSION KIT
    WIRE/CABLE LENGTH IMPERIAL:
    24'
    RIDING STYLE:
    STREET
    TYPE:
    HANDLEBAR
    $89.95
    Qty in Cart: 0
    Quantity:
    Price:
    $89.95
    Subtotal:
  • NAMZ Mating Connectors NMD-410027

    NAMZ Mating Connectors NMD-410027

    NAMZ

    $6.95
    Kit includes four each of the AMP and Delphi connectors, Connectors include terminal ends and wire seals, Made in the U.S.A.
    21200554
    SKU:
    21200554
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    BLACK
    CONNECTOR TYPE:
    DELPHI
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    CONNECTOR PIN COUNT:
    3 PINS
    CONNECTOR TYPE:
    ROUND
    PRODUCT NAME:
    WIRING CONNECTOR
    TYPE:
    DELPHI
    $6.95
    Qty in Cart: 0
    Quantity:
    Price:
    $6.95
    Subtotal:
  • NAMZ Deutsch Hole Plugs DTM DTM-HP

    NAMZ Deutsch Hole Plugs DTM DTM-HP

    NAMZ

    $6.95
    Refill your Deutsch Builder Kits with these connector components, Each connector features a silicon rubber seal to reduce corrosion and moisture, The same connectors, receptacles and plugs used on factory wiring harnesses, Can also be used for...
    21200309
    SKU:
    21200309
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    CONNECTOR GENDER:
    -
    TYPE:
    MATING CONNECTOR
    COLOR/FINISH:
    RED
    CONNECTOR TYPE:
    DEUTSCH DTM
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    HOLE PLUG
    CONNECTOR PIN COUNT:
    1 PIN
    UNITS:
    10 PACK
    $6.95
    Qty in Cart: 0
    Quantity:
    Price:
    $6.95
    Subtotal:
  • NAMZ Regulator Connector Kit - XL HDD-XL-KIT NAMZ Regulator Connector Kit - XL HDD-XL-KIT

    NAMZ Regulator Connector Kit - XL HDD-XL-KIT

    NAMZ

    $25.95
    Used to replace the male and female connectors that are found on the regulator, Designed to save time and labor, Kit includes 1-position plug, receptacle and one male and one female crimp terminal
    21200313
    SKU:
    21200313
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    WIRING CONNECTOR
    RIDING STYLE:
    STREET
    CONNECTOR TYPE:
    DEUTSCH
    UNITS:
    KIT
    CONNECTOR PIN COUNT:
    1 PIN
    $25.95
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 3 Pin Female - Black NM-33471-0301

    NAMZ Molex MX 150 Connector - 3 Pin Female - Black NM-33471-0301

    NAMZ

    $2.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200314
    SKU:
    21200314
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    CONNECTOR GENDER:
    FEMALE
    CONNECTOR TYPE:
    MOLEX MX-150
    CONNECTOR PIN COUNT:
    3 PINS
    PRODUCT NAME:
    WIRING CONNECTOR
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    TYPE:
    SINGLE ROW
    UNITS:
    EACH
    $2.95
    Qty in Cart: 0
    Quantity:
    Price:
    $2.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 4 Pin Female - Black NM-33472-4001

    NAMZ Molex MX 150 Connector - 4 Pin Female - Black NM-33472-4001

    NAMZ

    $4.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200316
    SKU:
    21200316
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    RIDING STYLE:
    STREET
    CONNECTOR GENDER:
    FEMALE
    CONNECTOR PIN COUNT:
    4 PINS
    CONNECTOR TYPE:
    MOLEX MX-150
    PRODUCT NAME:
    WIRING CONNECTOR
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    TYPE:
    DOUBLE ROW
    $4.95
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 4 Pin Female- Gray NM-33472-4002

    NAMZ Molex MX 150 Connector - 4 Pin Female- Gray NM-33472-4002

    NAMZ

    $4.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200317
    SKU:
    21200317
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    CONNECTOR GENDER:
    FEMALE
    RIDING STYLE:
    STREET
    TYPE:
    DOUBLE ROW
    CONNECTOR PIN COUNT:
    4 PINS
    CONNECTOR TYPE:
    MOLEX MX-150
    PRODUCT NAME:
    WIRING CONNECTOR
    UNITS:
    EACH
    COLOR/FINISH:
    GRAY
    $4.95
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 6 Pin Female - Black NM-33472-0601

    NAMZ Molex MX 150 Connector - 6 Pin Female - Black NM-33472-0601

    NAMZ

    $5.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200318
    SKU:
    21200318
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    COLOR/FINISH:
    BLACK
    CONNECTOR GENDER:
    FEMALE
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    WIRING CONNECTOR
    CONNECTOR PIN COUNT:
    6 PINS
    CONNECTOR TYPE:
    MOLEX MX-150
    UNITS:
    EACH
    TYPE:
    DOUBLE ROW
    $5.95
    Qty in Cart: 0
    Quantity:
    Price:
    $5.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 8 Pin Female - Black NM-33472-0801

    NAMZ Molex MX 150 Connector - 8 Pin Female - Black NM-33472-0801

    NAMZ

    $7.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200319
    SKU:
    21200319
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    COLOR/FINISH:
    BLACK
    CONNECTOR GENDER:
    FEMALE
    RIDING STYLE:
    STREET
    TYPE:
    DOUBLE ROW
    CONNECTOR PIN COUNT:
    8 PINS
    CONNECTOR TYPE:
    MOLEX MX-150
    PRODUCT NAME:
    WIRING CONNECTOR
    UNITS:
    EACH
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 12 Pin Female - Black NM-33472-1201

    NAMZ Molex MX 150 Connector - 12 Pin Female - Black NM-33472-1201

    NAMZ

    $3.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200320
    SKU:
    21200320
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    TYPE:
    DOUBLE ROW
    CONNECTOR GENDER:
    FEMALE
    CONNECTOR TYPE:
    MOLEX MX-150
    CONNECTOR PIN COUNT:
    12 PINS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    WIRING CONNECTOR
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $3.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3.95
    Subtotal:
  • NAMZ Molex MX 150 Connector - 16 Pin Female - Black NM-33472-1601

    NAMZ Molex MX 150 Connector - 16 Pin Female - Black NM-33472-1601

    NAMZ

    $5.95
    Male and female connectors and terminals, Simple to use, Watertight construction in a small compact size, Hole plugs are used when a wire/terminal is not present in order to keep connector watertight, Made in the U.S.A.
    21200321
    SKU:
    21200321
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    COLOR/FINISH:
    BLACK
    CONNECTOR GENDER:
    FEMALE
    TYPE:
    DOUBLE ROW
    CONNECTOR PIN COUNT:
    16 PINS
    PRODUCT NAME:
    WIRING CONNECTOR
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    CONNECTOR TYPE:
    MOLEX MX-150
    $5.95
    Qty in Cart: 0
    Quantity:
    Price:
    $5.95
    Subtotal:
  • STANDARD MOTOR PRODUCTS Junction Block - 8 Lug MC-JB1 STANDARD MOTOR PRODUCTS Junction Block - 8 Lug MC-JB1

    STANDARD MOTOR PRODUCTS Junction Block - 8 Lug MC-JB1

    STANDARD MOTOR PRODUCTS

    $20.95
    Bakelite blocks for custom wiring jobs - compact and easy to hide, Come with lug screws; mounting hardware not included, Made in the U.S.A.
    DS272165
    SKU:
    DS272165
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    CONNECTOR PIN COUNT:
    16 PINS
    PRODUCT NAME:
    TERMINAL PLATE
    RIDING STYLE:
    OFF-ROAD
    CONNECTOR TYPE:
    WITH SCREWS
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    COLOR/FINISH:
    BLACK
    MATERIAL:
    BAKELITE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    $20.95
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • STANDARD MOTOR PRODUCTS Junction Block - 6 Lug MC-JB3 STANDARD MOTOR PRODUCTS Junction Block - 6 Lug MC-JB3

    STANDARD MOTOR PRODUCTS Junction Block - 6 Lug MC-JB3

    STANDARD MOTOR PRODUCTS

    $15.95
    Bakelite blocks for custom wiring jobs - compact and easy to hide, Come with lug screws; mounting hardware not included, Made in the U.S.A.
    DS272166
    SKU:
    DS272166
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    CONNECTOR PIN COUNT:
    12 PINS
    PRODUCT NAME:
    TERMINAL PLATE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    MATERIAL:
    BAKELITE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    CONNECTOR TYPE:
    WITH SCREWS
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • STANDARD MOTOR PRODUCTS Junction Block - 4 Lug MC-JB2 STANDARD MOTOR PRODUCTS Junction Block - 4 Lug MC-JB2

    STANDARD MOTOR PRODUCTS Junction Block - 4 Lug MC-JB2

    STANDARD MOTOR PRODUCTS

    $11.95
    Bakelite blocks for custom wiring jobs - compact and easy to hide, Come with lug screws; mounting hardware not included, Made in the U.S.A.
    DS272167
    SKU:
    DS272167
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    CONNECTOR PIN COUNT:
    8 PINS
    MATERIAL:
    BAKELITE
    PRODUCT NAME:
    TERMINAL PLATE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    SNOW
    CONNECTOR TYPE:
    WITH SCREWS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    $11.95
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • ULTRACOOL 4-Pin Access Plug Connector RFB-125

    ULTRACOOL 4-Pin Access Plug Connector RFB-125

    ULTRACOOL

    $14.95
    Recommended for electrical connection for all UltraCool Oil Coolers
    21200987
    SKU:
    21200987
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    PLUG CONNECTOR
    RIDING STYLE:
    STREET
    TYPE:
    CONNECTOR
    FOR MAKE:
    HARLEY DAVIDSON
    POWER CONNECTION TYPE:
    CONNECTING HARNESS
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • ULTRACOOL 4-Pin Dual Accessory Connector RFB-Y126

    ULTRACOOL 4-Pin Dual Accessory Connector RFB-Y126

    ULTRACOOL

    $19.95
    Provides two 12 VDC and ground connections to accessories without overloading the bikes charging system, Recommended for electrical connection of UltraCool Oil Cooler
    21200988
    SKU:
    21200988
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    PLUG CONNECTOR
    RIDING STYLE:
    STREET
    TYPE:
    CONNECTOR
    UNITS:
    EACH
    FOR MAKE:
    HARLEY DAVIDSON
    POWER CONNECTION TYPE:
    CONNECTING HARNESS
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • ULTRACOOL 6-Pin Multiple Accessory Connector SMB-Y129

    ULTRACOOL 6-Pin Multiple Accessory Connector SMB-Y129

    ULTRACOOL

    $19.95
    Provides battery power, ignition/accessory power and ground
    21200989
    SKU:
    21200989
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    MULTIPLE ACCESSORY CONNECTOR
    TYPE:
    CONNECTOR
    UNITS:
    EACH
    FOR MAKE:
    HARLEY DAVIDSON
    POWER CONNECTION TYPE:
    CONNECTING HARNESS
    RIDING STYLE:
    STREET
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • ULTRACOOL 8-Pin Multiple Accessory Connector RFB-Y130

    ULTRACOOL 8-Pin Multiple Accessory Connector RFB-Y130

    ULTRACOOL

    $22.95
    Provides battery power, ignition/accessory power and ground from the 8 way Molex P&A accessory connector to accessories connecting through a 4 pin Deutsch connector
    21200990
    SKU:
    21200990
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    FOR MAKE:
    HARLEY DAVIDSON
    PRODUCT NAME:
    MULTIPLE ACCESSORY CONNECTOR
    UNITS:
    EACH
    TYPE:
    CONNECTOR
    POWER CONNECTION TYPE:
    CONNECTING HARNESS
    RIDING STYLE:
    STREET
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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