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
-
SUMAX Spark Plug Wires - Black - FXCW 20035
SUMAX
$41.95Factory spark plug wires degrade under heat and high RPM conditions, causing misfires, reduced fuel efficiency, and ignition system strain. SUMAX Spark Plug Wires deliver superior conductivity and...21040152- SKU:
- 21040152
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- WIRE
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 8'
- CONNECTOR ANGLE:
- -
- WIRE DIAMETER:
- 8 MM
$41.95 -
SUMAX Spark Plug Wires - Black - FL 20036
SUMAX
$41.95Stock spark plug wires are a bottleneck for ignition performance—they introduce resistance that limits conductivity, generates heat, and fails prematurely. SUMAX Spiro-Pro wires eliminate that weak...21040155- SKU:
- 21040155
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- CONNECTOR ANGLE:
- -
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 17'
- COLOR/FINISH:
- BLACK
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$41.95 -
SUMAX Spark Plug Wires - Red - FL 20236
SUMAX
$41.95Stock spark plug wires generate excessive heat and resistance, causing misfires, fouled plugs, and accelerated degradation—especially in high-performance applications. SUMAX Spark Plug Wires...21040157- SKU:
- 21040157
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PRODUCT NAME:
- WIRE
- CONNECTOR ANGLE:
- -
- WIRE DIAMETER:
- 8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 17'
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$41.95 -
SUMAX Spark Plug Wire Kit - Red 86285
SUMAX
$44.95Checking and replacing spark plugs on high-displacement, water-cooled motorcycles demands reliable access and secure connections—this kit delivers both. The SUMAX Spark Plug Wire Kit features Monster...86285- SKU:
- 86285
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 36'
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$44.95 -
SUMAX Spark Plug Wire Kit - Black 86085
SUMAX
$44.95If you're running a big-bore, water-cooled street bike with deep spark plug wells, accessing your plugs shouldn't require a contortionist's flexibility. The SUMAX Spark Plug Wire Kit 86085 features...86085- SKU:
- 86085
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 36'
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$44.95 -
SUMAX Spark Plug Wire Kit - Blue 86685
SUMAX
$44.95If you're running a big-bore, water-cooled street bike with deep spark plug wells, you know how frustrating it can be to access your plugs for routine maintenance. The SUMAX Spark Plug Wire Kit...86685- SKU:
- 86685
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 36'
$44.95 -
SUMAX Spark Plug Wires - Black - FLT/XL 77033
SUMAX
$41.95A reliable spark plug wire set is foundational to consistent ignition performance, and SUMAX's Spiro-Pro core delivers conductivity that outperforms standard carbon-core alternatives by a significant...DS242146- SKU:
- DS242146
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 21-1/2'
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$41.95 -
SUMAX Spark Plug Wires - Red - FL/FX 77231
SUMAX
$41.95Reliable ignition is non-negotiable in high-performance applications, and compromised spark plug wires are a common culprit behind misfires and inconsistent combustion. SUMAX Spark Plug Wires deliver...DS242149- SKU:
- DS242149
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- COLOR/FINISH:
- RED
- CONNECTOR ANGLE:
- -
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 16'
$41.95 -
SUMAX Spark Plug Wires - Red - FXCW 20235
SUMAX
$41.95Reliable ignition is non-negotiable in high-performance applications, and inferior spark plug wires will cost you consistency and power. SUMAX's Spiro-Pro core delivers up to 10 times the...21040153- SKU:
- 21040153
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 8'
- CONNECTOR ANGLE:
- -
- WIRE DIAMETER:
- 8 MM
$41.95 -
SUMAX Spark Plug Wires - Blue - FL 20636
SUMAX
$41.95Spark plug wire quality directly impacts ignition reliability and engine performance. SUMAX's Spiro-Pro core technology delivers superior conductivity compared to standard carbon-core alternatives,...21040160- SKU:
- 21040160
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 17'
- COLOR/FINISH:
- BLUE
- CONNECTOR ANGLE:
- -
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
$41.95Qty in Cart: 0Quantity:Price:$41.95Subtotal: -
SUMAX Spark Plug Wires - Red - FXR 77235
SUMAX
$41.95Unreliable spark plug wires compromise ignition timing and engine efficiency, leading to misfires, poor performance, and costly rebuilds. SUMAX Spark Plug Wires eliminate these failures with superior...DS242153- SKU:
- DS242153
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- PRODUCT NAME:
- WIRE
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- RED
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 12'
$41.95 -
SUMAX Spark Plug Wires - Red - FLT/XL 77233
SUMAX
$41.95If your ignition system is still running stock carbon-core spark plug wires, you're leaving performance on the table and shortening component lifespan unnecessarily. SUMAX Spark Plug Wires deliver...DS242157- SKU:
- DS242157
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 21-1/2'
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
$41.95 -
SUMAX 10.4 mm Spark Plug Wire - Black - '09-'16 FL 40036
SUMAX
$59.95If you're running a classic Harley and want a spark plug wire setup that matches the visual presence of your engine, the SUMAX 10.4mm wires deliver that commanding aesthetic without sacrificing...21040222- SKU:
- 21040222
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MODEL:
- 409 PRO RACE
- PRODUCT NAME:
- WIRE
- WIRE DIAMETER:
- 10.4 MM
- WIRE LENGTH IMPERIAL:
- 23'
- UNITS:
- PAIR
- TYPE:
- SPARK PLUG
- WIRE LENGTH:
- 58,5 CM (23')
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$59.95 -
SUMAX Spark Plug Wires - Red - FXST TC 20231
SUMAX
$41.95Stock spark plug wires degrade quickly under sustained heat and load, leaving you with misfires, fouled plugs, and lost performance. SUMAX Spiro-Pro wires deliver superior conductivity and thermal...DS242603- SKU:
- DS242603
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- CONNECTOR ANGLE:
- -
- WIRE LENGTH IMPERIAL:
- 19'
$41.95 -
SUMAX Spark Plug Wires - Blue - FXST TC 20631
SUMAX
$41.95Stock spark plug wires are a common failure point that degrades ignition performance and fuel economy over time. SUMAX's Spiro-Pro core wires deliver superior conductivity and heat resistance,...DS242607- SKU:
- DS242607
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CONNECTOR ANGLE:
- -
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 19'
- TYPE:
- SPARK PLUG
- PRODUCT NAME:
- WIRE
- COLOR/FINISH:
- BLUE
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
$41.95 -
SUMAX Spark Plug Wires - Black - FLT 20033
SUMAX
$41.95Spark plug wires are a critical component in your ignition system, and inferior wires can cause misfires, fouled plugs, and poor engine performance. SUMAX Spark Plug Wires deliver superior...DS242611- SKU:
- DS242611
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- WIRE
- TYPE:
- SPARK PLUG
- CONNECTOR ANGLE:
- -
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 21-1/2'
$41.95 -
SUMAX Spark Plug Wire - 8 mm - Red 30238
SUMAX
$72.95Factory spark plug wires degrade under heat and high RPM conditions, causing misfires, rough idle, and poor engine response. SUMAX's Spiro-Pro core technology delivers 10 times the conductivity of...21040357- SKU:
- 21040357
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- SET
- WIRE DIAMETER:
- 8 MM
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- SPARK PLUG WIRE
$72.95Qty in Cart: 0Quantity:Price:$72.95Subtotal: -
SUMAX Spark Plug Wire - 8 mm - Blue 30638
SUMAX
$72.95Spark plug wires are your ignition system's first line of defense against heat degradation and electrical dropout. With SUMAX's Spiro-Pro core technology, you get superior conductivity that...21040359- SKU:
- 21040359
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- COLOR/FINISH:
- BLUE
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- PRODUCT NAME:
- SPARK PLUG WIRE
$72.95Qty in Cart: 0Quantity:Price:$72.95Subtotal: -
SUMAX Spark Plug Wires - Black - XG XG200
SUMAX
$32.95Reliable ignition is foundational to engine performance, and failing spark plug wires compromise both starting consistency and fuel efficiency. SUMAX Spark Plug Wires deliver superior conductivity...21040286- SKU:
- 21040286
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 10-1/2'
- WIRE LENGTH IMPERIAL:
- 7-1/2'
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- CONNECTOR ANGLE:
- -
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- WIRE DIAMETER:
- 8 MM
$32.95 -
SUMAX Spark Plug Wires - Red - XG XG202
SUMAX
$32.95Factory spark plug wires are often the first ignition component to degrade, causing misfires, fouled plugs, and unreliable starts. SUMAX Spiro-Pro wires eliminate that weak link with superior...21040287- SKU:
- 21040287
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- CONNECTOR ANGLE:
- 120°
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- WIRE DIAMETER:
- 8 MM
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 13'
- WIRE LENGTH IMPERIAL:
- 16'
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal:
