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 Wire Set - Polished Stainless - FL '17+ 3046S
MAGNUM
$104.95A reliable ignition system is foundational to consistent engine performance, and factory spark plug wires often degrade under heat and vibration, leading to misfires and rough idle. The MAGNUM Spark Plug Wire Set delivers the suppression control and...21040341- SKU:
- 21040341
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- IGNITION WIRES
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- STAINLESS STEEL
- UNITS:
- EACH
$104.95 -
MAGNUM Spark Plug Wire Set - Red - FL '17+ 3046T
MAGNUM
$100.95A reliable spark plug wire set is critical to maintaining consistent ignition timing and engine performance, especially in high-heat riding conditions. The MAGNUM Spark Plug Wire Set delivers OE-quality construction with upgraded materials and...21040342- SKU:
- 21040342
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- IGNITION WIRES
$100.95Qty in Cart: 0Quantity:Price:$100.95Subtotal: -
MAGNUM Spark Plug Wire Set - Blue - Softail '18+ 3047B
MAGNUM
$98.95A quality ignition system is the foundation of reliable engine performance, and OEM spark plug wires often degrade with heat cycles, leading to misfires and inconsistent combustion. The MAGNUM Spark Plug Wire Set delivers OE-level suppression and...21040343- SKU:
- 21040343
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- IGNITION WIRES
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$98.95Qty in Cart: 0Quantity:Price:$98.95Subtotal: -
MAGNUM Spark Plug Wires - S/C 2 - '86-'03 XL 3028C
MAGNUM
$79.95A reliable ignition system is the foundation of consistent engine performance, and worn or inadequate spark plug wires rob you of both power and reliability. MAGNUM Spark Plug Wires deliver OE-quality construction with high-performance suppression...08023029- SKU:
- 08023029
- Availability:
- Ships Same Business Day
- Weight:
- 0.43 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- WIRE
- CONNECTOR ANGLE:
- 90°
- CONNECTOR ANGLE:
- STRAIGHT
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- -
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
MAGNUM Spark Plug Wires - Blue - FLT 3033B
MAGNUM
$77.95Your ignition system is only as reliable as the wires delivering spark to the cylinders. MAGNUM Spark Plug Wires replace worn or degraded ignition wires with precision-engineered components that eliminate misfire, improve cold-start performance, and...21040021- SKU:
- 21040021
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- CONNECTOR ANGLE:
- STRAIGHT
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- WIRE DIAMETER:
- 8 MM
- COLOR/FINISH:
- BLUE
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$77.95 -
MAGNUM Spark Plug Wires - Red - FXR 3030T
MAGNUM
$77.95Reliable spark delivery is the foundation of any high-performance ignition system—and factory wires often fall short under demanding conditions. MAGNUM Spark Plug Wires are engineered to eliminate ignition interference, maintain consistent spark energy...21040028- SKU:
- 21040028
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 9-3/4'
- PRODUCT NAME:
- WIRE
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
$77.95Qty in Cart: 0Quantity:Price:$77.95Subtotal: -
MAGNUM Spark Plug Wires - Black Pearl - FLHT 3045K
MAGNUM
$86.95Reliable spark delivery is fundamental to engine performance, and factory spark plug wires often degrade under high heat and electrical stress. The MAGNUM Spark Plug Wires for FLHT applications deliver consistent, interference-free ignition with...21040175- SKU:
- 21040175
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- CONNECTOR ANGLE:
- 90°
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 34-3/4'
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- MATERIAL:
- SILICONE
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
$86.95 -
MAGNUM Spark Plug Wires - Polished Stainless - XL 3028S
MAGNUM
$79.95Reliable spark delivery is the foundation of consistent ignition performance, and factory wires often degrade under heat and vibration. The MAGNUM Spark Plug Wires replace OEM ignition cables with a precision-engineered 8mm silicone core that maintains...21040098- SKU:
- 21040098
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- CONNECTOR ANGLE:
- 90°
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- STAINLESS STEEL
- WIRE LENGTH IMPERIAL:
- 20'
- WIRE LENGTH IMPERIAL:
- 6-5/8'
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
BLUE STREAK 8mm Universal Spark Plug Wire Set MC-SPW14
BLUE STREAK
$56.95Reliable spark plug wire sets are non-negotiable for consistent ignition performance and engine stability across a wide range of operating conditions. The BLUE STREAK 8mm Universal Spark Plug Wire Set delivers SAE CLASS E J2031 rated construction with...21040008- SKU:
- 21040008
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- SET
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 40'
$56.95Qty in Cart: 0Quantity:Price:$56.95Subtotal:
