Spark Plugs & Wires
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Parts Unlimited - Spark Plug Cap - Straight - Red
Parts Unlimited
$10.55Parts Unlimited - Spark Plug Cap - Straight - RedFeaturesFit 10 mm, 12 mm and 14 mm plugs with terminal nutsAccept 7 mm or 8 mm plug wiresFor terminal nut style plugsNot for use on fuel-injected models.SpecsConnector AngleStraightCompatible Spark Plug...$10.55 -
Parts Unlimited - Spark Plug Cap - 90 Degree - Blue
Parts Unlimited
$10.55Parts Unlimited - Spark Plug Cap - 90 Degree - BlueFeaturesFit 10 mm, 12 mm and 14 mm plugs with terminal nutsAccept 7 mm or 8 mm plug wiresFor terminal nut style plugsNot for use on fuel-injected models.SpecsColor/FinishBlueCompatible Spark Plug Size10...$10.55 -
Motion Pro - 08-0579 - Gap Tool - Spark Plug
Motion Pro
$19.99Motion Pro - 08-0579 - Gap Tool - Spark PlugFeaturesIdeal tool for checking and setting spark plug gap on almost any spark plugIncludes 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 and 1.0 mm gap gaugesIncludes handy bottle opener on opposite endLaser etched...$19.99 -
Lang Tools - 4450A - E-Z™ Grip Spark Plug Tool
Lang Tools
$9.95Lang Tools - 4450A - E-Z™ Grip Spark Plug ToolFeaturesFull-range coverage for all spark plug gapping requirements from .020" to .080" (.060 mm to 2.00 mm)Includes a recess specifically designed to adjust electrodesPrecise and easy to useApplications...$9.95 -
Lang Tools - 1013A - Rethreader Spark Plug
Lang Tools
$24.95Lang Tools - 1013A - Rethreader Spark PlugFeaturesRequires the use of a 5/8" spark plug socket, or the female square requires the use of a male 3/8" square driveUsed to clean up dirty or damaged spark plug threads on Twin Cam, V-Rod and some Sportster...$24.95 -
Dynatek - DW-800 - 8 mm Suppression Plug Wire
Dynatek
$33.32Dynatek - DW-800 - 8 mm Suppression Plug WireFeaturesDyna suppression core spark plug wires use the highest grade graphite suppression core to reduce electrical noise and increase engine performanceTwo wires, each 48" L; cut to length; can be used for up...$33.32 -
Daytona Twin Tec Llc - 3002 - 7 mm Universal Plug Wire Kit
Daytona Twin Tech
$32.95Daytona Twin Tec Llc - 3002 - 7 mm Universal Plug Wire KitFeaturesKit includes plug wires, terminals and boots for many applicationsMade in the U.S.A.SpecsColor/FinishBlackRiding StyleWatercraftUnitsKitRiding StyleOff-RoadRiding StyleSnowRiding...$32.95 -
Dynatek - CT-1 - Tool-Plug Wire Crimper
Dynatek
$44.43Dynatek - CT-1 - Tool-Plug Wire CrimperFeaturesWorks with 10 to 22 gauge solderless terminalsCrimps 7 mm to 8.5 mm ignition wireInsulated hand grips for protectionSpecsApplicationIgnition WiresRiding StyleStreetProduct NameTerminal CrimperRiding...$44.43 -
Cycle Performance Prod. - CPP/9041-14 - Washer - Spark Plug - 14 mm
Cycle Performance Prod.
$24.95Cycle Performance Prod. - CPP/9041-14 - Washer - Spark Plug - 14 mmFeaturesAchieve maximum performance by indexing spark plug electrode gap towards the intake valveEach kit includes 15 washers: five .040" thick washers, five .050" thick washers and five ...$24.95 -
Cycle Performance Prod. - CPP/9041-12 - Washer - Spark Plug - 12 mm
Cycle Performance Prod.
$24.95Cycle Performance Prod. - CPP/9041-12 - Washer - Spark Plug - 12 mmFeaturesAchieve maximum performance by indexing spark plug electrode gap towards the intake valveEach kit includes 15 washers: five .040" thick washers, five .050" thick washers and five ...$24.95 -
Cycle Performance Prod. - CPP/9041-10 - Washer - Spark Plug - 10 mm
Cycle Performance Prod.
$24.95Cycle Performance Prod. - CPP/9041-10 - Washer - Spark Plug - 10 mmFeaturesAchieve maximum performance by indexing spark plug electrode gap towards the intake valveEach kit includes 15 washers: five .040" thick washers, five .050" thick washers and five ...$24.95 -
Sumax - 20233 - Spark Plug Wire - 8 mm - Red - '99-'06 FLT
Sumax
$41.95Sumax - 20233 - Spark Plug Wire - 8 mm - Red - '99-'06 FLTFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 20231 - Spark Plug Wire - 8 mm - Red - FXST
Sumax
$41.95Sumax - 20231 - Spark Plug Wire - 8 mm - Red - FXSTFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone,...$41.95 -
Sumax - 77633 - Spark Plug Wire - 8 mm - Blue - FLT/XL
Sumax
$41.95Sumax - 77633 - Spark Plug Wire - 8 mm - Blue - FLT/XLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 77635 - Spark Plug Wire - 8 mm - Blue - FXR
Sumax
$41.95Sumax - 77635 - Spark Plug Wire - 8 mm - Blue - FXRFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone,...$41.95 -
Sumax - 40031 - Spark Plug Wire - 10.4 mm - Black - Harley Davidson
Sumax
$59.95Sumax - 40031 - Spark Plug Wire - 10.4 mm - Black - Harley DavidsonFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from...$59.95 -
Sumax - 77231 - Spark Plug Wire - 8 mm - Red - FL/FX
Sumax
$41.95Sumax - 77231 - Spark Plug Wire - 8 mm - Red - FL/FXFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 77233 - Spark Plug Wire - 8 mm - Red - FLT/XL
Sumax
$41.95Sumax - 77233 - Spark Plug Wire - 8 mm - Red - FLT/XLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 77235 - Spark Plug Wire - 8 mm - Red - FXR
Sumax
$41.95Sumax - 77235 - Spark Plug Wire - 8 mm - Red - FXRFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone,...$41.95 -
Sumax - 49633 - Spark Plug Wire - 10.4 mm - Blue - XL/FL
Sumax
$59.95Sumax - 49633 - Spark Plug Wire - 10.4 mm - Blue - XL/FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$59.95 -
Sumax - 49035 - Spark Plug Wire - 10.4 mm - Black - '82-'94/'99-'00 FXR
Sumax
$59.95Sumax - 49035 - Spark Plug Wire - 10.4 mm - Black - '82-'94/'99-'00 FXRFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from...$59.95 -
Sumax - 49033 - Spark Plug Wire - 10.4 mm - Black - '80-'98 FL
Sumax
$59.95Sumax - 49033 - Spark Plug Wire - 10.4 mm - Black - '80-'98 FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from...$59.95 -
Sumax - 40638 - Spark Plug Wire - 10.4 mm - Blue
Sumax
$98.95Sumax - 40638 - Spark Plug Wire - 10.4 mm - BlueFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone,...$98.95 -
Sumax - 20638 - Spark Plug Wire - 8 mm - Blue - FL
Sumax
$72.95Sumax - 20638 - Spark Plug Wire - 8 mm - Blue - FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone,...$72.95 -
Sumax - 40636 - Spark Plug Wire - 10.4 mm - Blue - '09-'16 FL
Sumax
$59.95Sumax - 40636 - Spark Plug Wire - 10.4 mm - Blue - '09-'16 FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$59.95 -
Sumax - XG200 - Spark Plug Wire - 8 mm - Black - XG
Sumax
$32.95Sumax - XG200 - Spark Plug Wire - 8 mm - Black - XGFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone,...$32.95 -
Sumax - 20636 - Spark Plug Wire - 8 mm - Blue - '09-'16 FL
Sumax
$41.95Sumax - 20636 - Spark Plug Wire - 8 mm - Blue - '09-'16 FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 20236 - Spark Plug Wire - 8 mm - Red - '09-'16 FL
Sumax
$41.95Sumax - 20236 - Spark Plug Wire - 8 mm - Red - '09-'16 FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 20035 - Spark Plug Wire - 8 mm - Black - '08-'11 FXCW
Sumax
$41.95Sumax - 20035 - Spark Plug Wire - 8 mm - Black - '08-'11 FXCWFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature...$41.95 -
Sumax - 40034 - Spark Plug Wire - 10.4 mm - Black - '99-'08 FL
Sumax
$59.95Sumax - 40034 - Spark Plug Wire - 10.4 mm - Black - '99-'08 FLFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from...$59.95 -
Sumax - 20234 - Spark Plug Wire - 8 mm - Red
Sumax
$41.95Sumax - 20234 - Spark Plug Wire - 8 mm - RedFeaturesDesigner plug wire sets come in distinctive, highly visible colorsPrecut and have the plug/coil boots and terminals already installedBoots and wires are made from extra-high-temperature silicone, which...$41.95 -
Blue Streak - MC-SPW8 - Spark Plug Wire Set - 8mm - XL
Blue Streak
$28.95Blue Streak - MC-SPW8 - Spark Plug Wire Set - 8mm - XLFeaturesRated at SAE CLASS E J2031Triple silicone construction through jacket, insulation and core for higher heat-resistanceContinuous operating temperature of 450 FMade in the U.S.A.Replacement Part...$28.95 -
Blue Streak - MC-SPW6 - Spark Plug Wire Set - 8mm - FL
Blue Streak
$28.95Blue Streak - MC-SPW6 - Spark Plug Wire Set - 8mm - FLFeaturesRated at SAE CLASS E J2031Triple silicone construction through jacket, insulation and core for higher heat-resistanceContinuous operating temperature of 450 FMade in the U.S.A.Replacement Part...$28.95 -
Blue Streak - MC-SPW16 - Spark Plug Wire Set - 8mm - '07+ XL
Blue Streak
$27.95Blue Streak - MC-SPW16 - Spark Plug Wire Set - 8mm - '07+ XLFeaturesRated at SAE CLASS E J2031Triple silicone construction through jacket, insulation and core for higher heat-resistanceContinuous operating temperature of 450 FMade in the U.S.A...$27.95 -
Powermadd - E3.39 - E3 Spark Plug - 39
PowerMadd
$11.00Powermadd - E3.39 - E3 Spark Plug - 39FeaturesUnique electrode shape maximizes the power created by the spark plug - Diamond Fire technologyElectrode is a combination of performance and technology that results in an improved flame kernel shapeThis flame...$11.00 -
Magnum Shielding - 3023K - Spark Plug Wires - Black Pearl - '65-'99 FX/FL
Magnum
$77.95Magnum Shielding - 3023K - Spark Plug Wires - Black Pearl - '65-'99 FX/FLFeaturesBraid perfectly matches all other Magnum cables and brake linesHigh-voltage, high temperature 8 mm silicone ignition wire with an OE style high-performance suppression...$77.95 -
Magnum Shielding - 3023T - Spark Plug Wires - Candy Apple Red - '65-'99 FX/FL
Magnum
$77.95Magnum Shielding - 3023T - Spark Plug Wires - Candy Apple Red - '65-'99 FX/FLFeaturesBraid perfectly matches all other Magnum cables and brake linesHigh-voltage, high temperature 8 mm silicone ignition wire with an OE style high-performance suppression...$77.95 -
Magnum Shielding - 3030S - Spark Plug Wires - Polished - FXR
Magnum
$79.95Magnum Shielding - 3030S - Spark Plug Wires - Polished - FXRFeaturesBraid perfectly matches all other Magnum cables and brake linesHigh-voltage, high temperature 8 mm silicone ignition wire with an OE style high-performance suppression conductor core for...$79.95 -
Magnum Shielding - 3033C - Spark Plug Wires - Sterling Chromite - FL
Magnum
$80.95Magnum Shielding - 3033C - Spark Plug Wires - Sterling Chromite - FLFeaturesBraid perfectly matches all other Magnum cables and brake linesHigh-voltage, high temperature 8 mm silicone ignition wire with an OE style high-performance suppression conductor...$80.95 -
Magnum Shielding - 3023C - Spark Plug Wires - Sterling Chromite - '65-'99 FX/FL
Magnum
$79.95Magnum Shielding - 3023C - Spark Plug Wires - Sterling Chromite - '65-'99 FX/FLFeaturesBraid perfectly matches all other Magnum cables and brake linesHigh-voltage, high temperature 8 mm silicone ignition wire with an OE style high-performance suppression...$79.95
Harley Spark Plugs & Wires
Upgrade your ignition system with our premium selection of Harley spark plugs and Harley spark plug wires, engineered to meet or exceed OEM standards for Harley Davidson motorcycles. Choose from high-performance iridium and platinum Harley Davidson spark plugs designed for increased durability, cleaner combustion, and improved fuel efficiency.
Our Harley Davidson spark plug wires feature low-resistance construction for maximum conductivity and reliable spark delivery. Built with high-temp silicone insulation, these Harley spark plug wires provide excellent heat protection and superior EMI/RFI suppression to shield your bike’s electronics from interference. Plus, with custom lengths and color-matched options available, you can match performance with style.
Whether you're maintaining a stock setup or fine-tuning a custom build, our Harley spark plugs and Harley spark plug wires are tested to perform under tough riding conditions. Browse our full range of Harley Davidson Electrical & Wiring parts and give your motorcycle the spark it needs to perform its best. Shop now and ride with confidence!