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
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SUMAX Spark Plug Wires - Blue 20634
SUMAX
$41.95Stock spark plug wires are a common source of ignition loss and heat damage under performance driving conditions. The SUMAX Spiro-Pro core delivers significantly lower resistance than carbon-core...21040074- SKU:
- 21040074
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- CONNECTOR ANGLE:
- -
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- ATV
- WIRE LENGTH IMPERIAL:
- 21'
$41.95Qty in Cart: 0Quantity:Price:$41.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Black Pearl - XL 3043K
MAGNUM
MSRP: $77.95Now: $72.49Was: $77.95Reliable spark delivery is non-negotiable in high-performance applications, and inferior ignition wires introduce resistance, heat degradation, and timing inconsistencies that rob your engine of...21040133- SKU:
- 21040133
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 7-1/4'
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- CONNECTOR ANGLE:
- STRAIGHT
MSRP: $77.95Now: $72.49Was: $77.95Qty in Cart: 0Quantity:Price:MSRP: $77.95Now: $72.49Was: $77.95Subtotal: -
On Sale
MAGNUM Braided Spark Plug Wire - 07+ XL - Polished 3043S
MAGNUM
MSRP: $79.95Now: $74.35Was: $79.95Factory ignition systems demand reliable spark delivery, and factory wire doesn't always cut it in high-performance applications. The MAGNUM Braided Spark Plug Wire delivers OE-spec performance with...21040134- SKU:
- 21040134
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MATERIAL:
- SILICONE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 20-1/4'
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
- COLOR/FINISH:
- STAINLESS STEEL
- CONNECTOR ANGLE:
- STRAIGHT
- WIRE LENGTH IMPERIAL:
- 7-1/4'
MSRP: $79.95Now: $74.35Was: $79.95 -
On Sale
MAGNUM Spark Plug Wire Set - Red - Softail '18+ 3047T
MAGNUM
MSRP: $98.95Now: $92.02Was: $98.95Reliable ignition delivery is the foundation of consistent engine performance, and factory spark plug wires often degrade under heat and vibration. The MAGNUM Spark Plug Wire Set eliminates misfire...21040347- SKU:
- 21040347
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- IGNITION WIRES
- RIDING STYLE:
- STREET
MSRP: $98.95Now: $92.02Was: $98.95 -
On Sale
MAGNUM Spark Plug Wire Set - Polished Stainless - FL '17+ 3046S
MAGNUM
MSRP: $104.95Now: $97.60Was: $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...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
MSRP: $104.95Now: $97.60Was: $104.95 -
On Sale
MAGNUM Spark Plug Wire Set - Red - FL '17+ 3046T
MAGNUM
MSRP: $100.95Now: $93.88Was: $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...21040342- SKU:
- 21040342
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- IGNITION WIRES
MSRP: $100.95Now: $93.88Was: $100.95Qty in Cart: 0Quantity:Price:MSRP: $100.95Now: $93.88Was: $100.95Subtotal: -
On Sale
MAGNUM Spark Plug Wire Set - Blue - Softail '18+ 3047B
MAGNUM
MSRP: $98.95Now: $92.02Was: $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...21040343- SKU:
- 21040343
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- IGNITION WIRES
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $98.95Now: $92.02Was: $98.95Qty in Cart: 0Quantity:Price:MSRP: $98.95Now: $92.02Was: $98.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - S/C 2 - '86-'03 XL 3028C
MAGNUM
MSRP: $79.95Now: $74.35Was: $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...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:
- -
MSRP: $79.95Now: $74.35Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $74.35Was: $79.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Blue - FLT 3033B
MAGNUM
MSRP: $77.95Now: $72.49Was: $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...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
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 - FXR 3030T
MAGNUM
MSRP: $77.95Now: $72.49Was: $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...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
MSRP: $77.95Now: $72.49Was: $77.95Qty in Cart: 0Quantity:Price:MSRP: $77.95Now: $72.49Was: $77.95Subtotal: -
On Sale
MAGNUM Spark Plug Wires - Black Pearl - FLHT 3045K
MAGNUM
MSRP: $86.95Now: $80.86Was: $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...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'
MSRP: $86.95Now: $80.86Was: $86.95 -
On Sale
MAGNUM Spark Plug Wires - Polished Stainless - XL 3028S
MAGNUM
MSRP: $79.95Now: $74.35Was: $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...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
MSRP: $79.95Now: $74.35Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $74.35Was: $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...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:
