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
-
On Sale
MAGNUM Spark Plug Wires - Black Pearl - FLT 3033K
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Factory ignition systems demand precision spark delivery, and undersized or poorly constructed wires rob your engine of reliable combustion. The MAGNUM Spark Plug Wires deliver OE-quality performance...21040022- SKU:
- 21040022
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- TYPE:
- SPARK PLUG
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
MSRP: $77.95Now: $72.49Was: $77.95 -
On Sale
MAGNUM Spark Plug Wires - Red - FLST 3041T
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is the foundation of engine performance, and factory spark plug wires often degrade under heat and high voltage demand. MAGNUM Spark Plug Wires eliminate misfire risk and...21040024- SKU:
- 21040024
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- RED
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 6-3/8'
MSRP: $77.95Now: $72.49Was: $77.95 -
On Sale
MAGNUM Spark Plug Wires - Blue - FLST 3041B
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is non-negotiable in high-performance ignition systems, and factory wires often fall short under sustained heat and high voltage demands. The MAGNUM Spark Plug Wires eliminate...21040025- SKU:
- 21040025
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- COLOR/FINISH:
- BLUE
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- TYPE:
- SPARK PLUG
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 6-3/8'
MSRP: $77.95Now: $72.49Was: $77.95 -
On Sale
MAGNUM Spark Plug Wires - Black Pearl - FLST 3041K
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable ignition is non-negotiable for consistent performance, and factory spark plug wires often can't handle the demands of modern H-D engines or extended high-RPM runs. The MAGNUM Spark Plug...21040026- SKU:
- 21040026
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 6-3/8'
- CONNECTOR ANGLE:
- STRAIGHT
MSRP: $77.95Now: $72.49Was: $77.95Qty in Cart: 0Quantity:Price:MSRP: $77.95Now: $72.49Was: $77.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Red - FXD 3040T
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is non-negotiable in high-performance riding. MAGNUM Spark Plug Wires eliminate voltage loss and EMI interference with heavy-walled FEP insulation and a suppression conductor...21040031- SKU:
- 21040031
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE LENGTH IMPERIAL:
- 7-1/4'
MSRP: $77.95Now: $72.49Was: $77.95Qty in Cart: 0Quantity:Price:MSRP: $77.95Now: $72.49Was: $77.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Blue - FXR 3040B
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is the foundation of consistent engine performance, and factory spark plug wires often degrade under heat and high RPM cycles. The MAGNUM Spark Plug Wires eliminate voltage...21040032- SKU:
- 21040032
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLUE
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 7-1/4'
MSRP: $77.95Now: $72.49Was: $77.95 -
On Sale
MAGNUM Spark Plug Wires - Black Pearl - FXD 3040K
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is non-negotiable in high-performance ignition systems, and OE-style suppression combined with quality construction ensures your engine fires consistently under demanding...21040033- SKU:
- 21040033
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 7-1/4'
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
MSRP: $77.95Now: $72.49Was: $77.95 -
On Sale
MAGNUM Spark Plug Wires - Red - XL 3028T
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is critical to engine performance, and compromised ignition wiring leads to misfires, power loss, and inconsistent combustion. The MAGNUM Spark Plug Wires deliver high-voltage...21040037- SKU:
- 21040037
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 6-5/8'
- TYPE:
- SPARK PLUG
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- COLOR/FINISH:
- RED
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20'
MSRP: $77.95Now: $72.49Was: $77.95 -
On Sale
MAGNUM Spark Plug Wires - C/M 2 - FXCW 3044C
MAGNUM
MSRP: $79.95Now: $74.35Was: $79.95Reliable spark delivery is non-negotiable in high-performance applications, and factory ignition wires often fall short under demanding conditions. The MAGNUM Spark Plug Wires deliver consistent,...21040167- SKU:
- 21040167
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- WIRE
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 8-3/4'
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
MSRP: $79.95Now: $74.35Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $74.35Was: $79.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Polished Stainless - FXCW 3044S
MAGNUM
MSRP: $79.95Now: $74.35Was: $79.95A reliable ignition system is the foundation of consistent performance, and factory spark plug wires often degrade under heat and vibration, compromising spark delivery and tuning precision. The...21040170- SKU:
- 21040170
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- COLOR/FINISH:
- STAINLESS STEEL
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 8-3/4'
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
MSRP: $79.95Now: $74.35Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $74.35Was: $79.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - C/M 2 - FLHT 3045C
MAGNUM
MSRP: $90.95Now: $84.58Was: $90.95Reliable spark delivery is non-negotiable in high-performance applications, and compromised ignition wires lead to misfires, power loss, and costly diagnostics. The MAGNUM Spark Plug Wires deliver...21040173- SKU:
- 21040173
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 34-3/4'
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- COLOR/FINISH:
- SILVER
- WIRE LENGTH IMPERIAL:
- 17'
MSRP: $90.95Now: $84.58Was: $90.95 -
On Sale
MAGNUM Spark Plug Wires - Sterling Chromite - FLHT 3045S
MAGNUM
MSRP: $90.95Now: $84.58Was: $90.95Reliable spark delivery is foundational to engine performance, and OEM spark plug wires often degrade under heat and vibration, compromising ignition timing and fuel efficiency. The MAGNUM Spark Plug...21040176- SKU:
- 21040176
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 34-3/4'
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
- COLOR/FINISH:
- STAINLESS STEEL
MSRP: $90.95Now: $84.58Was: $90.95Qty in Cart: 0Quantity:Price:MSRP: $90.95Now: $84.58Was: $90.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Red - FLHT 3045T
MAGNUM
MSRP: $86.95Now: $80.86Was: $86.95If you're running a carbureted or fuel-injected H-D engine, your ignition system is only as reliable as your spark plug wires. The MAGNUM Spark Plug Wires deliver consistent, interference-free spark...21040177- SKU:
- 21040177
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 34-3/4'
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 17'
- CONNECTOR ANGLE:
- 90°
- MATERIAL:
- SILICONE
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
MSRP: $86.95Now: $80.86Was: $86.95Qty in Cart: 0Quantity:Price:MSRP: $86.95Now: $80.86Was: $86.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Polished Stainless - FX 3023S
MAGNUM
MSRP: $79.95Now: $74.35Was: $79.95Reliable spark delivery is non-negotiable in high-performance applications, and substandard ignition wires introduce resistance, heat loss, and misfires that compromise engine efficiency. The MAGNUM...21040096- SKU:
- 21040096
- Availability:
- Ships Same Business Day
- Weight:
- 0.43 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
- COLOR/FINISH:
- STAINLESS STEEL
- TYPE:
- SPARK PLUG
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 6-1/2'
- WIRE DIAMETER:
- 8 MM
MSRP: $79.95Now: $74.35Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $74.35Was: $79.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Polished Stainless - FXR 3030S
MAGNUM
MSRP: $79.95Now: $74.35Was: $79.95Reliable spark delivery is non-negotiable in high-performance applications, and factory spark plug wires often fall short under extreme conditions. The MAGNUM Spark Plug Wires eliminate voltage loss...21040099- SKU:
- 21040099
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- COLOR/FINISH:
- STAINLESS STEEL
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 9-3/4'
MSRP: $79.95Now: $74.35Was: $79.95 -
DAYTONA TWIN TEC LLC 7 mm Universal Plug Wire Kit 3002
DAYTONA TWIN TEC LLC
$32.95Reliable spark plug wire transmission is fundamental to engine performance and ignition consistency. The Daytona Twin Tec 7mm Universal Plug Wire Kit delivers the conductivity and durability required...78061556- SKU:
- 78061556
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- WIRE LENGTH IMPERIAL:
- 36'
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$32.95 -
DAYTONA TWIN TEC LLC 8.5 mm Universal Plug Wire Kit 3003
DAYTONA TWIN TEC LLC
$41.95Reliable ignition delivery is foundational to engine performance, and compromised plug wires rob you of combustion efficiency and throttle response. The DAYTONA TWIN TEC LLC 8.5 mm Universal Plug...78061557- SKU:
- 78061557
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- WIRE LENGTH IMPERIAL:
- 24'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
$41.95Qty in Cart: 0Quantity:Price:$41.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Red - XL 3043T
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is non-negotiable in high-performance applications, and inferior ignition wires introduce resistance, heat loss, and timing inconsistencies that rob you of power. The MAGNUM...21040135- SKU:
- 21040135
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- CONNECTOR ANGLE:
- 90°
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 7-1/4'
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
MSRP: $77.95Now: $72.49Was: $77.95Qty in Cart: 0Quantity:Price:MSRP: $77.95Now: $72.49Was: $77.95Subtotal: -
DRAG SPECIALTIES Plug Wires - Indian SPW20-DS
DRAG SPECIALTIES
$48.10Indian cruisers demand ignition systems that can handle sustained high-heat operation without degradation or misfires. These DRAG Specialties plug wires deliver consistent spark delivery across all...21040296- SKU:
- 21040296
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- WIRE DIAMETER:
- 8.8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 10-3/4'
- COMPATIBLE TERMINAL CONFIGURATION:
- SOLID TERMINAL
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$48.10 -
DRAG SPECIALTIES 8.8 mm Plug Wires - HD Street SPW21-DS
DRAG SPECIALTIES
$39.47Reliable ignition starts with quality plug wires that can handle extreme heat cycles without degradation. The DRAG SPECIALTIES 8.8 mm Plug Wires deliver consistent spark delivery and durability for...21040297- SKU:
- 21040297
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- WIRE
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8.8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 13-1/2'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$39.47Qty in Cart: 0Quantity:Price:$39.47Subtotal:
