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
-
MAGNUM Spark Plug Wires - Polished Stainless - Dyna 3040S
MAGNUM
$79.95Reliable spark delivery is non-negotiable in high-performance applications, and factory ignition wires often fall short under sustained load. The MAGNUM Spark Plug Wires eliminate electromagnetic interference while handling extreme under-hood...21040108- SKU:
- 21040108
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- PRODUCT NAME:
- WIRE
- COLOR/FINISH:
- STAINLESS STEEL
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 7-1/4'
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
$79.95 -
MAGNUM Spark Plug Wires - Polished Stainless - Softail 3041S
MAGNUM
$79.95Reliable spark delivery is foundational to engine performance, and factory wires often degrade under heat and vibration, compromising ignition timing and fuel efficiency. The MAGNUM Spark Plug Wires deliver consistent high-voltage output while...21040109- SKU:
- 21040109
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 6-3/8'
- COLOR/FINISH:
- STAINLESS STEEL
- CONNECTOR ANGLE:
- STRAIGHT
$79.95 -
MAGNUM Spark Plug Wires - C/M 2 - XL 3043C
MAGNUM
$79.95Reliable spark delivery is non-negotiable in high-performance applications, and compromised ignition wires can cost you consistency and power. The MAGNUM Spark Plug Wires C/M 2 - XL 3043C eliminate electromagnetic interference while handling extreme...21040131- SKU:
- 21040131
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- COLOR/FINISH:
- SILVER
- CONNECTOR ANGLE:
- 90°
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 7-1/4'
$79.95 -
MAGNUM Spark Plug Wire Set - Blue - FL 17+ 3046B
MAGNUM
$100.95A reliable ignition system is the foundation of consistent engine performance, and compromised spark plug wires can cause misfires, voltage loss, and erratic combustion timing. The MAGNUM Spark Plug Wire Set delivers OE-quality suppression and EMI...21040338- SKU:
- 21040338
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- IGNITION WIRES
$100.95 -
MAGNUM Spark Plug Wire Set - Sterling Chromite ll - FL '17+ 3046C
MAGNUM
$104.95Reliable ignition systems are the foundation of consistent engine performance, and factory spark plug wires often degrade under heat and vibration, leading to misfires and weak spark delivery. The MAGNUM Spark Plug Wire Set delivers OE-quality...21040339- SKU:
- 21040339
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- IGNITION WIRES
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- STERLING CHROMITE® II
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
MAGNUM Spark Plug Wire Set - Black - FL 17+ 3046K
MAGNUM
$100.95A reliable ignition system is the foundation of consistent engine performance, and factory spark plug wires often degrade under heat and vibration. The MAGNUM Spark Plug Wire Set delivers OE-quality construction with high-performance suppression...21040340- SKU:
- 21040340
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- IGNITION WIRES
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$100.95 -
MAGNUM Spark Plug Wire Set - S/C 2 - Softail '18+ 3047C
MAGNUM
$102.95Your ignition system is critical to consistent spark timing and engine reliability—weak spark delivery compromises performance and fuel efficiency. The MAGNUM Spark Plug Wire Set delivers high-voltage consistency with military-grade construction designed...21040344- SKU:
- 21040344
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- STERLING CHROMITE® II
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- IGNITION WIRES
$102.95Qty in Cart: 0Quantity:Price:$102.95Subtotal: -
MAGNUM Spark Plug Wire Set - Black - Softail '18+ 3047K
MAGNUM
$98.95Reliable spark delivery is non-negotiable in a high-performance build, and stock ignition wires often introduce resistance that compromises combustion efficiency and throttle response. The MAGNUM Spark Plug Wire Set eliminates that weak link with...21040345- SKU:
- 21040345
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- IGNITION WIRES
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$98.95 -
MAGNUM Spark Plug Wire Set - Polished Stainless - Softail '18+ 3047S
MAGNUM
$102.95A reliable ignition system is the foundation of consistent engine performance, and inferior spark plug wires can introduce voltage loss, electromagnetic interference, and unreliable firing—especially critical on modern H-D Softails with sensitive...21040346- SKU:
- 21040346
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- STAINLESS STEEL
- PRODUCT NAME:
- IGNITION WIRES
$102.95 -
MAGNUM Spark Plug Wires - S/C 2 - FXR 3030C
MAGNUM
$79.95Reliable spark delivery is fundamental to engine performance, and OE-quality ignition wires are non-negotiable in high-performance applications. MAGNUM Spark Plug Wires eliminate the guesswork with factory-direct fitment and proven suppression technology...08023030- SKU:
- 08023030
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- SILVER
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 9-3/4'
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- CONNECTOR ANGLE:
- 90°
- TYPE:
- SPARK PLUG
$79.95 -
MAGNUM Spark Plug Wires - S/C 2 - FLT 3033C
MAGNUM
$80.95Reliable spark delivery is foundational to engine performance, and substandard ignition wires introduce resistance, misfire, and power loss. The MAGNUM Spark Plug Wires combine OE-level engineering with heavy-duty construction to ensure consistent, clean...08023033- SKU:
- 08023033
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SILVER
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- TYPE:
- SPARK PLUG
$80.95 -
MAGNUM Spark Plug Wires - S/C 2 - '99-'17 Dyna 3040C
MAGNUM
$79.95Reliable spark delivery is the foundation of consistent engine performance, and factory spark plug wires often degrade over time, leading to weak ignition and rough idle. The MAGNUM Spark Plug Wires for your '99-'17 Dyna deliver OE-level performance with...08023040- SKU:
- 08023040
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 7-1/4'
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SILVER
- CONNECTOR ANGLE:
- 90°
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 19-3/4'
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
$79.95 -
MAGNUM Spark Plug Wires - S/C 2 - Softail 3041C
MAGNUM
$79.95Reliable spark delivery is the foundation of any high-performance ignition system, and inferior wires compromise both throttle response and fuel economy. MAGNUM Spark Plug Wires deliver consistent, interference-free ignition across the entire RPM range...08023041- SKU:
- 08023041
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 6-3/8'
- COLOR/FINISH:
- SILVER
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 19-3/4'
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
MAGNUM Spark Plug Wires - Red - '65-'99 FX/XL 3023T
MAGNUM
$77.95Factory ignition systems demand reliable spark delivery—weak or interference-prone wires rob your engine of performance and create hard-starting headaches. MAGNUM Spark Plug Wires deliver consistent, noise-free ignition with heavy-duty construction that...21040009- SKU:
- 21040009
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- RED
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 6-1/2'
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
$77.95 -
MAGNUM Spark Plug Wires - Blue - '65-'99 FX/XL 3023B
MAGNUM
$77.95Reliable spark delivery is non-negotiable in high-performance applications, and factory ignition wires often fall short under sustained heat and RPM loads. MAGNUM Spark Plug Wires deliver consistent, interference-free ignition timing with heavy-walled...21040010- SKU:
- 21040010
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLUE
- CONNECTOR ANGLE:
- STRAIGHT
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 6-1/2'
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
$77.95 -
MAGNUM Spark Plug Wires - Black Pearl - '65-'99 FX/XL 3023K
MAGNUM
$77.95A reliable ignition system is the foundation of consistent performance, and compromised spark plug wires can mean misfires, rough idle, and lost power when you need it most. MAGNUM Spark Plug Wires deliver OE-quality suppression and durability without...21040014- SKU:
- 21040014
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 17'
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 6-1/2'
$77.95 -
MAGNUM Spark Plug Wires - Red - FLT 3033T
MAGNUM
$77.95Stock spark plug wires can't handle the electrical demands and heat cycling of a tuned Harley-Davidson engine. The MAGNUM Spark Plug Wires deliver OE-quality suppression and thermal stability with U.S.-manufactured construction, ensuring clean spark...21040020- SKU:
- 21040020
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- COLOR/FINISH:
- RED
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$77.95 -
MAGNUM Spark Plug Wires - Black Pearl - FLT 3033K
MAGNUM
$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 with heavy-walled FEP fluoropolymer insulation that...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
$77.95 -
MAGNUM Spark Plug Wires - Red - FLST 3041T
MAGNUM
$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 ensure consistent ignition timing across all engine speeds,...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'
$77.95 -
MAGNUM Spark Plug Wires - Blue - FLST 3041B
MAGNUM
$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 common failure points—cross-firing, signal...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'
$77.95
