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
-
BLUE STREAK 8mm Spark Plug Wire Set - FL MC-SPW9
BLUE STREAK
$28.95Triple silicone construction through jacket, insulation and core for higher heat-resistance, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242195- SKU:
- DS242195
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- PRODUCT NAME:
- WIRE
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 21-1/2'
$28.95Qty in Cart: 0Quantity:Price:$28.95Subtotal: -
BLUE STREAK 8mm Spark Plug Wire Set - FL MC-SPW10
BLUE STREAK
$28.95Triple silicone construction through jacket, insulation and core for higher heat-resistance, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242196- SKU:
- DS242196
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20'
- WIRE LENGTH IMPERIAL:
- 21'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
$28.95 -
BLUE STREAK 8mm Spark Plug Wire Set - XL 1200s MC-SPW12
BLUE STREAK
$53.95Triple silicone construction through jacket, insulation and core for higher heat-resistance, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242198- SKU:
- DS242198
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 24-1/2'
- TYPE:
- SPARK PLUG
- UNITS:
- SET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
$53.95Qty in Cart: 0Quantity:Price:$53.95Subtotal: -
BLUE STREAK 8mm Spark Plug Wire Set - Softail MC-SPW13
BLUE STREAK
$36.95Triple silicone construction through jacket, insulation and core for higher heat-resistance, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242217- SKU:
- DS242217
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20'
- WIRE LENGTH IMPERIAL:
- 8'
- PRODUCT NAME:
- WIRE
- TYPE:
- SPARK PLUG
$36.95 -
BLUE STREAK Copper Core 8mm Spark Plug Wire Set - '58-'69 XL W/Mag MC-SPW1
BLUE STREAK
$27.95Copper core wire sets for bikes with magneto or points type ignitions, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242164- SKU:
- DS242164
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- COPPER CORE XXX
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 25'
- TYPE:
- SPARK PLUG
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
BLUE STREAK Copper Core 8mm Spark Plug Wire Set - '71-E'78 XL MC-SPW2
BLUE STREAK
$27.95Copper core wire sets for bikes with magneto or points type ignitions, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242165- SKU:
- DS242165
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- WIRE
- COLOR/FINISH:
- BLACK
- MODEL:
- COPPER CORE XXX
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 8'
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 21'
$27.95 -
BLUE STREAK Copper Spark Plug Wire Set - '65-E'78 FX/XL MC-SPW3
BLUE STREAK
$27.95Copper core wire for bikes with points type ignitions, Rated at SAE CLASS E J2031 with a continuous operating temperature of 450°F, Made in the U.S.A.DS242166- SKU:
- DS242166
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 7'
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 16'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- MODEL:
- BLUE STREAK XXX
- UNITS:
- PAIR
- WIRE DIAMETER:
- 8 MM
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
COMPU-FIRE Universal Spark Plug Wire Kit 40100
COMPU-FIRE
$31.95Reliable spark plug wires are foundational to consistent ignition timing and engine performance. The COMPU-FIRE 40100 delivers dependable current delivery with quality U.S. manufacturing, eliminating weak spark issues that compromise throttle response...DS242330- SKU:
- DS242330
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 41'
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
$31.95 -
COMPU-FIRE 8mm Spark Plug Wire Set - 41" Black 40200
COMPU-FIRE
$51.95Reliable spark plug wires are non-negotiable for consistent ignition timing and engine performance. The COMPU-FIRE 8mm Spark Plug Wire Set delivers dependable conductivity and heat resistance with spiral-wound silicone construction that withstands...DS242331- SKU:
- DS242331
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- SPARK PLUG
- UNITS:
- KIT
- WIRE LENGTH IMPERIAL:
- 41'
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
$51.95 -
BLUE STREAK 8mm Spark Plug Wire Set - 40" MC-SPW4
BLUE STREAK
$28.95Spark plug wires are often overlooked, but they're critical to consistent ignition timing and engine reliability—especially under high heat and load. The BLUE STREAK 8mm set delivers SAE CLASS E performance with triple silicone construction that resists...DS242167- SKU:
- DS242167
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- WIRE
- UNITS:
- EACH
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 40'
- MATERIAL:
- SILICONE
- COLOR/FINISH:
- BLACK
- MODEL:
- BLUE STREAK XXX
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
$28.95 -
BLUE STREAK 8mm Spark Plug Wire Set - FL MC-SPW6
BLUE STREAK
$28.95Spark plug wire degradation is a silent killer of ignition performance—worn or failing wires cause misfires, rough idle, and power loss that no tuning can fix. The BLUE STREAK 8mm Spark Plug Wire Set eliminates guesswork with triple silicone construction...DS242169- SKU:
- DS242169
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 8'
- WIRE LENGTH IMPERIAL:
- 19'
$28.95 -
BLUE STREAK 8mm Spark Plug Wire Set - '04-'06 XL MC-SPW15
BLUE STREAK
$27.95Ignition reliability is non-negotiable in high-performance applications, and inferior spark plug wires are a common culprit behind misfires and power loss. The BLUE STREAK 8mm Spark Plug Wire Set delivers consistent spark delivery and superior heat...21040183- SKU:
- 21040183
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- SILICONE
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- MODEL:
- BLUE STREAK XXX
- WIRE DIAMETER:
- 8 MM
- WIRE LENGTH IMPERIAL:
- 20'
$27.95 -
BLUE STREAK 8mm Spark Plug Wire Set - '07+ XL MC-SPW16
BLUE STREAK
$27.95Spark plug wires are the unsung heroes of reliable ignition—and when you're pushing your XL Sportster hard, OEM wires simply won't cut it. The BLUE STREAK 8mm Wire Set delivers the heat resistance and electrical integrity your engine demands, whether...21040184- SKU:
- 21040184
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 9'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 21'
- WIRE DIAMETER:
- 8 MM
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
BLUE STREAK Spark Plug Wires - Indian MC-SPW20
BLUE STREAK
$45.95Reliable spark plug wires are foundational to consistent ignition timing and engine performance. The BLUE STREAK MC-SPW20 delivers the thermal stability and electrical integrity your Indian motorcycle demands, whether you're pushing high RPMs on the...21040299- SKU:
- 21040299
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MODEL:
- BLUE STREAK XXX
- PRODUCT NAME:
- WIRE
- COLOR/FINISH:
- BLACK
- CONNECTOR ANGLE:
- STRAIGHT
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- WIRE LENGTH IMPERIAL:
- 14'
- TYPE:
- SPARK PLUG
- CONNECTOR ANGLE:
- 90°
- WIRE DIAMETER:
- 8 MM
$45.95 -
BLUE STREAK 8mm Spark Plug Wire Set - Softail MC-SPW5
BLUE STREAK
$28.95Reliable spark plug wire performance is fundamental to engine ignition—any degradation in wire quality directly impacts combustion efficiency and throttle response. The BLUE STREAK 8mm Spark Plug Wire Set is engineered with triple silicone construction...DS242168- SKU:
- DS242168
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- WIRE DIAMETER:
- 8 MM
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 17'
- WIRE LENGTH IMPERIAL:
- 7'
- COLOR/FINISH:
- BLACK
- MATERIAL:
- SILICONE
- MODEL:
- BLUE STREAK XXX
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$28.95Qty in Cart: 0Quantity:Price:$28.95Subtotal: -
DRAG SPECIALTIES Plug Wires - '58-'69 XL with Magneto SPW1-DS
DRAG SPECIALTIES
$31.15If you're running a points-style or magneto ignition on your classic Harley, reliable plug wires aren't optional—they're essential to consistent spark delivery and engine performance. DRAG Specialties plug wires are engineered specifically for vintage XL...21040136- SKU:
- 21040136
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- WIRE DIAMETER:
- 8.8 MM
- WIRE LENGTH IMPERIAL:
- 24'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$31.15Qty in Cart: 0Quantity:Price:$31.15Subtotal: -
DRAG SPECIALTIES Plug Wires - '71-E'78 XL SPW2-DS
DRAG SPECIALTIES
$28.03Reliable ignition is non-negotiable on vintage XL Sportsters, and these Drag Specialties plug wires deliver the durability your classic deserves. Built with a full silicone jacket and copper core construction, they're engineered to withstand the heat...21040137- SKU:
- 21040137
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- RIDING STYLE:
- STREET
- WIRE DIAMETER:
- 8.8 MM
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- TYPE:
- SPARK PLUG
- WIRE LENGTH IMPERIAL:
- 20'
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 7'
$28.03Qty in Cart: 0Quantity:Price:$28.03Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - Universal SPW4-DS
DRAG SPECIALTIES
$34.27Reliable spark plug wires are non-negotiable for consistent ignition timing and peak engine performance. These Drag Specialties 8.8 mm universal wires deliver the high-temperature stability needed for demanding driving conditions, whether you're tuning...21040139- SKU:
- 21040139
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 39'
- TYPE:
- SPARK PLUG
- UNITS:
- KIT
- WIRE DIAMETER:
- 8.8 MM
- COLOR/FINISH:
- BLACK
- MODEL:
- UNIVERSAL
- RIDING STYLE:
- STREET
$34.27Qty in Cart: 0Quantity:Price:$34.27Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - '82-'99 FXR SPW7-DS
DRAG SPECIALTIES
$26.99Reliable ignition is non-negotiable on your FXR, and substandard plug wires compromise both performance and engine longevity. These Drag Specialties wires are engineered to handle the heat cycles of hard riding with consistent spark delivery and superior...21040142- SKU:
- 21040142
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- WIRE
- RIDING STYLE:
- STREET
- WIRE LENGTH IMPERIAL:
- 6-3/4'
- WIRE DIAMETER:
- 8.8 MM
$26.99Qty in Cart: 0Quantity:Price:$26.99Subtotal: -
DRAG SPECIALTIES 8.8 mm Plug Wires - '97-'98 FL SPW9-DS
DRAG SPECIALTIES
$30.11Reliable ignition delivery is non-negotiable in performance applications, and these Drag Specialties plug wires are engineered to handle the demands of high-heat environments without compromising spark integrity. Built with full silicone construction...21040144- SKU:
- 21040144
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- WIRE DIAMETER:
- 8.8 MM
- PRODUCT NAME:
- WIRE
- WIRE LENGTH IMPERIAL:
- 18'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- UNITS:
- PAIR
$30.11
