Harley Plug Wire
Harley Bike Plug Wires at JJ Motorsports
Boost your Harley's spark with premium plug wire sets from JJ Motorsports, featuring 10.4mm braided and chromite designs for stronger ignition, reduced resistance, and reliable performance on Sportster, Dyna, Softail, Touring, and XL models. These high-quality wires deliver hotter sparks and custom looks.
Shop Magnum, Drag Specialties, and Sumax plug wires for proven durability. Explore related categories such as Harley lights and electrical for coils and batteries, or Harley for exhaust and cams to complete your ignition upgrade.
Top Harley Plug Wires
- Magnum Spark Plug Wire Set Sterling Chromite LL FL 17-3046C – Sterling Chromite braided set for late-model FL Touring; 10.4mm core for maximum spark energy.
- Drag Specialties Plug Wires 71-E78 XL SPW2-DS – Black 8.5mm wire set for 1971-1978 XL Sportster; direct-fit with silicone insulation.
- Sumax 10.4 mm Spark Plug Wire 00-17 ST Red 40231 – Red 10.4mm silicone wire set for 2000-2017 Softail; high-voltage for Twin Cam performance.
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
-
DRAG SPECIALTIES 8.8 mm Plug Wires - Universal SPW4-DS
DRAG SPECIALTIES
$35.26Reliable spark plug wires are non-negotiable for consistent ignition timing and peak engine performance. These Drag Specialties 8.8 mm universal wires deliver the high-temperature stability needed...21040139- SKU:
- 21040139
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 39'
- TYPE:
- SPARK PLUG
- UNITS:
- KIT
- WIRE DIAMETER:
- 8.8 MM
- COLOR/FINISH:
- BLACK
- MODEL:
- UNIVERSAL
- RIDING STYLE:
- STREET
$35.26 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '82-'99 FXR SPW7-DS
DRAG SPECIALTIES
$27.77Reliable ignition is non-negotiable on your FXR, and substandard plug wires compromise both performance and engine longevity. These Drag Specialties wires are engineered to handle the heat cycles of...21040142- SKU:
- 21040142
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 6-3/4'
- WIRE DIAMETER:
- 8.8 MM
$27.77 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '97-'98 FL SPW9-DS
DRAG SPECIALTIES
$30.98Reliable ignition delivery is non-negotiable in performance applications, and these Drag Specialties plug wires are engineered to handle the demands of high-heat environments without compromising...21040144- SKU:
- 21040144
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- WIRE DIAMETER:
- 8.8 MM
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 18'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$30.98 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '99-'17 FXD SPW11-DS
DRAG SPECIALTIES
$30.98Reliable ignition is non-negotiable in high-performance applications, and factory plug wires often fail under sustained heat and load. These Drag Specialties 8.8 mm wires are engineered for...21040146- SKU:
- 21040146
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- WIRE
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8.8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 17'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 19'
$30.98Qty in Cart: 0Quantity:Price:$30.98Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - '98-'03 XL 1200S SPW12-DS
DRAG SPECIALTIES
$54.52Reliable ignition is non-negotiable in a high-performance motorcycle engine, and factory plug wires often fail under sustained heat and aggressive tuning. These DRAG SPECIALTIES 8.8mm wires are...21040147- SKU:
- 21040147
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- PRODUCT NAME:
- WIRE
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 13-1/2'
- UNITS:
- KIT
- WIRE DIAMETER:
- 8.8 MM
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$54.52Qty in Cart: 0Quantity:Price:$54.52Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - Universal - Dual SPW14-DS
DRAG SPECIALTIES
$54.52Unreliable spark plug wires are a common culprit behind misfires, power loss, and inconsistent ignition timing—especially under high heat and sustained RPM. These Drag Specialties wires eliminate...21040149- SKU:
- 21040149
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8.8 MM
- WIRE LENGTH IMPERIAL:
- 40'
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- MODEL:
- UNIVERSAL
- TYPE:
- SPARK PLUG
- PRODUCT NAME:
- WIRE
$54.52 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '07-'20 XL SPW16-DS
DRAG SPECIALTIES
$30.98Reliable ignition systems are the foundation of consistent engine performance, and inferior plug wires will cost you on the strip and on the street. These Drag Specialties wires deliver thermal...21040186- SKU:
- 21040186
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 9'
- WIRE DIAMETER:
- 8.8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 21'
$30.98 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '99-'08 FL SPW10-DS
DRAG SPECIALTIES
$34.19Ignition reliability is non-negotiable in any performance application, and compromised plug wires will cost you consistency on the track or street. The DRAG Specialties 8.8 mm plug wires deliver...21040145- SKU:
- 21040145
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8.8 MM
- WIRE LENGTH IMPERIAL:
- -
- COLOR/FINISH:
- BLACK
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$34.19Qty in Cart: 0Quantity:Price:$34.19Subtotal: -
DRAG SPECIALTIES Plug Wires - '68-E'78 FX/XL SPW3-DS
DRAG SPECIALTIES
$27.77If you're running classic FX/XL Harley iron with points or magneto ignition, reliable spark delivery is non-negotiable for consistent performance and engine longevity. DRAG Specialties plug wires are...21040138- SKU:
- 21040138
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- WIRE DIAMETER:
- 8.8 MM
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
$27.77 -
DRAG SPECIALTIES 8.8 mm Plug Wires - Universal Twin Cam SPW18-DS
DRAG SPECIALTIES
$37.40Reliable ignition is non-negotiable in high-performance applications, and substandard plug wires will cost you consistency on the track or street. The DRAG SPECIALTIES 8.8 mm Plug Wires deliver the...21040247- SKU:
- 21040247
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 38'
- UNITS:
- KIT
- WIRE DIAMETER:
- 8.8 MM
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- MODEL:
- UNIVERSAL
- RIDING STYLE:
- STREET
$37.40 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '04-'06 XL SPW15-DS
DRAG SPECIALTIES
$30.98Reliable ignition is non-negotiable in high-performance riding. These Drag Specialties plug wires are engineered to withstand the extreme heat cycles of your '04-'06 Sportster, delivering consistent...21040185- SKU:
- 21040185
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 20'
- PRODUCT NAME:
- WIRE
- WIRE DIAMETER:
- 8.8 MM
$30.98 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '86-'03 XL SPW8-DS
DRAG SPECIALTIES
$32.05Reliable ignition is non-negotiable in high-performance applications, and inferior plug wires invite misfires, fouled plugs, and lost power. These DRAG SPECIALTIES wires deliver consistent spark...21040143- SKU:
- 21040143
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 20'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 7'
- WIRE DIAMETER:
- 8.8 MM
$32.05 -
DRAG SPECIALTIES 8.8 mm Plug Wires - '09-'16 FLHT DS-SPW17
DRAG SPECIALTIES
$34.19Reliable ignition is non-negotiable in high-performance applications, and factory plug wires often fail under sustained heat and electrical stress. Drag Specialties' 8.8mm wires are engineered...21040227- SKU:
- 21040227
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- -
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8.8 MM
$34.19Qty in Cart: 0Quantity:Price:$34.19Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - '00-'15 Softail SPW13-DS
DRAG SPECIALTIES
$28.84Reliable ignition is non-negotiable on the dyno or the street. Drag Specialties' 8.8mm plug wires are engineered to handle the thermal demands of high-revving Softail engines, with silicone...21040148- SKU:
- 21040148
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- WIRE DIAMETER:
- 8.8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 20'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 7'
$28.84Qty in Cart: 0Quantity:Price:$28.84Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - '85-'96 FL SPW6-DS
DRAG SPECIALTIES
$28.84Reliable ignition is non-negotiable in high-performance applications, and deteriorating plug wires compromise both power delivery and engine stability. DRAG Specialties 8.8mm wires are engineered for...21040141- SKU:
- 21040141
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17-1/2'
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 6-1/2'
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8.8 MM
$28.84Qty in Cart: 0Quantity:Price:$28.84Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - '85-'99 Softail SPW5-DS
DRAG SPECIALTIES
$29.91Reliable ignition is non-negotiable when you're pushing your Softail to the limit. These Drag Specialties plug wires handle extreme under-hood temperatures without degradation, ensuring consistent...21040140- SKU:
- 21040140
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
- WIRE LENGTH IMPERIAL:
- 7'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- TYPE:
- SPARK PLUG
- WIRE DIAMETER:
- 8.8 MM
$29.91Qty in Cart: 0Quantity:Price:$29.91Subtotal: -
DRAG SPECIALTIES Spark Plug Wires - Square Coil 19-0380/1-W
DRAG SPECIALTIES
$21.35Reliable spark plug wires are the backbone of consistent ignition timing and engine performance. OEM wires degrade over time, leading to misfires, rough idle, and lost horsepower—especially critical...21040220- SKU:
- 21040220
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- SET
- WIRE DIAMETER:
- 8.8 MM
- WIRE LENGTH IMPERIAL:
- 21-1/2'
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 12-1/2'
$21.35Qty in Cart: 0Quantity:Price:$21.35Subtotal: -
DRAG SPECIALTIES Plug Wires - Braided - Orange/Black 40177
DRAG SPECIALTIES
$22.42Reliable ignition delivery is non-negotiable in high-performance racing, and these DRAG SPECIALTIES plug wires are engineered to handle the demands of serious competitors. The tin-plated copper core...21040400- SKU:
- 21040400
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
$22.42Qty in Cart: 0Quantity:Price:$22.42Subtotal: -
SUMAX 10.4 mm Spark Plug Wire - '80-'98 XL/FLT - Blue 49633
SUMAX
$59.95SUMAX 10.4mm spark plug wires deliver the same reliable ignition performance as their 8mm counterparts, but with the aggressive visual presence that commands attention in any engine bay. Built for...DS242119- SKU:
- DS242119
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MODEL:
- 409 PRO RACE
- WIRE LENGTH:
- 51 CM (20')
- COLOR/FINISH:
- BLUE
- WIRE LENGTH IMPERIAL:
- 20'
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 9-1/2'
- PRODUCT NAME:
- WIRE
- WIRE DIAMETER:
- 10.4 MM
- WIRE LENGTH:
- 241 MM (9-1/2')
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUMAX 10.4 mm Spark Plug Wire - '65-'99 FX/FL - Red 49231
SUMAX
$59.95If you're running a classic FX/FL Harley and want ignition reliability that matches your bike's attitude, SUMAX 10.4mm spark plug wires deliver consistent spark delivery with the aggressive stance...DS242005- SKU:
- DS242005
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- WIRE LENGTH:
- 40,5 CM (16')
- MODEL:
- 409 PRO RACE
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 10.4 MM
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 16'
$59.95
