Spark Plugs & Wires
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Moroso - 27216 - Ign Wires Spiral Core/Set 99-08 Flt
Moroso
$32.95Moroso - 27216 - Ign Wires Spiral Core/Set 99-08 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$32.95 -
Moroso - 27217 - Ign Wires Spiral Core/Set 99-17 Fxd
Moroso
$32.95Moroso - 27217 - Ign Wires Spiral Core/Set 99-17 FxdFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$32.95 -
Moroso - 27219 - Ign Wires Spiral Core/Set 00-17 Softail
Moroso
$32.95Moroso - 27219 - Ign Wires Spiral Core/Set 00-17 SoftailFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$32.95 -
Moroso - 27220 - Ign Wires Spiral Core/Set 04-06 Xl
Moroso
$32.95Moroso - 27220 - Ign Wires Spiral Core/Set 04-06 XlFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$32.95 -
Moroso - 27282 - Ign Wires Suppression Core/Set 07-19 Xl
Moroso
$25.95Moroso - 27282 - Ign Wires Suppression Core/Set 07-19 XlFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$25.95 -
Moroso - 27283 - Ign Wires Suppression Core/Set 65-78 Big Twin
Moroso
$25.95Moroso - 27283 - Ign Wires Suppression Core/Set 65-78 Big TwinFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket...$25.95 -
Moroso - 27286 - Ign Wires Suppression Core/Set 78-83 Universal
Moroso
$32.95Moroso - 27286 - Ign Wires Suppression Core/Set 78-83 UniversalFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone...$32.95 -
Moroso - 27288 - Ign Wires Spiral Core/Set 78-83 Universal 78-83
Moroso
$32.95Moroso - 27288 - Ign Wires Spiral Core/Set 78-83 Universal 78-83FeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone...$32.95 -
Moroso - 28286 - Ign Wires Ultra 40/Set 99-08 Flt
Moroso
$39.95Moroso - 28286 - Ign Wires Ultra 40/Set 99-08 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 28322 - Ign Wires Ultra 40/Set 80-84 Fl 84-99 Soft 91-98 Dyna
Moroso
$39.95Moroso - 28322 - Ign Wires Ultra 40/Set 80-84 Fl 84-99 Soft 91-98 DynaFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a...$39.95 -
Moroso - 28323 - Ign Wires Ultra 40/Set 85-96 Flt
Moroso
$39.95Moroso - 28323 - Ign Wires Ultra 40/Set 85-96 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 28324 - Ign Wires Ultra 40/Set 82-99 Fxr
Moroso
$39.95Moroso - 28324 - Ign Wires Ultra 40/Set 82-99 FxrFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 28325 - Ign Wires Ultra 40/Set 86-03 Xl (Ex 1200S)
Moroso
$39.95Moroso - 28325 - Ign Wires Ultra 40/Set 86-03 Xl (Ex 1200S)FeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$39.95 -
Moroso - 28326 - Ign Wires Ultra 40/Set 97-98 Flt
Moroso
$39.95Moroso - 28326 - Ign Wires Ultra 40/Set 97-98 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 28330 - Ign Wires Ultra 40/Set 04-06 Xl
Moroso
$39.95Moroso - 28330 - Ign Wires Ultra 40/Set 04-06 XlFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Accel - 2418 - Copper Core Spark Plugs Tc/Xl High Performance
Accel
$37.35Accel - 2418 - Copper Core Spark Plugs Tc/Xl High PerformanceFeaturesGlobal Trade Item Number: 743047801673ACCEL C-Cut Copper Spark Plugs creates a considerably hotter spark that lets the flame...$37.35 -
Moroso - 27396 - Ign Wires Spiral Core/Set 09-16 Flt
Moroso
$36.95Moroso - 27396 - Ign Wires Spiral Core/Set 09-16 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$36.95 -
Moroso - 28396 - Ign Wires Ultra 40/Set 09-16 Flt
Moroso
$39.95Moroso - 28396 - Ign Wires Ultra 40/Set 09-16 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 27380 - Ign Wires Spiral Core/Set 17-Up M8 Flt
Moroso
$67.95Moroso - 27380 - Ign Wires Spiral Core/Set 17-Up M8 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$67.95 -
Moroso - 28620 - Ign Wires Ultra 40/Set Red 09-16 Flt
Moroso
$40.95Moroso - 28620 - Ign Wires Ultra 40/Set Red 09-16 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$40.95 -
Moroso - 28629 - Ign Wires Ultra 40/Set Red 00-17 Softail
Moroso
$39.95Moroso - 28629 - Ign Wires Ultra 40/Set Red 00-17 SoftailFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$39.95 -
Moroso - 28630 - Ign Wires Ultra 40/Set Red 04-06 Xl
Moroso
$39.95Moroso - 28630 - Ign Wires Ultra 40/Set Red 04-06 XlFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 28631 - Ign Wires Ultra 40/Set Red 07-19 Xl
Moroso
$39.95Moroso - 28631 - Ign Wires Ultra 40/Set Red 07-19 XlFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$39.95 -
Moroso - 28641 - Ign Wires Ultra 40/Set Red 17-Up M8 Flt
Moroso
$73.95Moroso - 28641 - Ign Wires Ultra 40/Set Red 17-Up M8 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to...$73.95 -
Moroso - 28640 - Ign Wires Ultra 40/Set 17-Up M8 Flt
Moroso
$73.95Moroso - 28640 - Ign Wires Ultra 40/Set 17-Up M8 FltFeaturesAll Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 ), and have a silicone jacket to reduce...$73.95 -
K&S Technologies - 21040451 - Spark Plug Cap - 90 - 14 mm
K&S Technologies Inc.
$9.95K&S TECHNOLOGIES - 21040451 - Spark Plug Cap - 90 - 14 mm Features Includes resistor cover and both end rubber caps Spark Plug Cap - 90° - 14 mm Includes resistor cover and both end rubber...$9.95 -
V-Twin - 49-3073 - Indian Spark Plug Wire Tube Bracket - Fits 1922-1953 Indian Chief
V-Twin Mfg
MSRP: $11.86$11.74Indian spark plug wire tube bracket Fits: Chief 1922-1953 Additional Information UOM 1 - EAMSRP: $11.86$11.74 -
V-Twin - 49-2532 - Spark Plug Cable Bracket - Fits 1937-1948 Harley-Davidson UL 74"/80", 1937-1952 WL (Solo), 1937-1973 G (Servi-Car)
V-Twin Mfg
$27.12Spark plug cable bracket Fits: UL 1937-1948 74" and 80" WL 1937-1952 Solo G 1937-1973 Servi-car Additional Information OEM No.$27.12
V-Twin - 49-1898 - JD Spark Plug & Parts Book Set - Fits 1914-1920 Harley-Davidson F, 1922-1929 JD, J
V-Twin Mfg
$110.50Doering 7/8" hex plugs with parts books for F and J models, packed in a 5 gallon can.Includes the Factory Service Bulletin for 1912-1926 Big Twins and the Parts Bokk for 1909-1932 V-Twins. ...$110.50
V-Twin - 49-1890 - 45 inch W/G 18mm Replica Spark/Wire Plug Kit - Fits 1937-1947 Harley-Davidson G, 1930-1952 W, 1930-1936 VL
V-Twin Mfg
$142.1118mm spark/wire plug kit includes 18mm x 7/8 " replica hex Doering #3 spark plugs, wires, books, wrench and a Side Valve parts book, packed in a 5 gallon metal can. Fits: G 1937-1947 W...$142.11
V-Twin - 49-1325 - Replica Spark Plug Shield Set - Fits 1936-1948 Harley-Davidson UL, 1936-1964 G, 1941-1964 FL, 1936-1952 EL, W
V-Twin Mfg
$46.20Original design of the early Harley covers with a black painted finish. The covers fit all 14mm or 18mm spark plugs with removable top nuts. Fits:UL 1936-1948G 1936-1964FL 1941-1964EL 1936-1952W...$46.20
V-Twin - 49-0982 - 18mm Beck Spark Plugs with Cool Fin Set - Fits 1937-1947 Harley-Davidson UL, 1936-1947 EL, 1941-1947 FL
V-Twin Mfg
$169.5118mm Beck spark plug kit includes two Beck 18mm #3 spark plugs, one set of cool fins, seal washers, removable brass terminal top nuts to accept early wire sets. Fits:UL 1937-1947EL 1936-1947FL...$169.51
V-Twin - 49-0980 - Replica 18mm Spark Plug Set - Fits 1937-1947 Harley-Davidson UL, 1936-1947 EL, 1941-1947 FL
V-Twin Mfg
$124.64These spark plugs are for the antique motorcycle enthusiast who enjoy riding. Spark plugs are air cooled with a heat range #3. Includes the brass top nuts which are used with earlier style terminals...$124.64
V-Twin - 49-0976 - 18mm Spark Plug Body Set - Fits 1937-1948 Harley-Davidson UL, 1936-1940 EL, 1929-1952 WL, 1941-1947 FL
V-Twin Mfg
$55.51This unique two piece zinc plated cover set converts the D-16 Champion 18mm spakr plugs to the early air cooled original Harley look! They are easy to install and re-useable.Conversion set is for...$55.51
V-Twin - 49-0880 - 7/8 inch Doering Spark Plug Set - Fits 1937-1948 Harley-Davidson UL, 1909-1916 F, 1930-1936 RL, VL, 1917-1926 J
V-Twin Mfg
$75.78Replica air cooled spark plug with 7/8" thread for early model motors and includes sealing washers, brass terminal and brass removable terminal nuts. Fits all 7/8" applications.Includes top...$75.78
V-Twin - 49-0878 - 18mm Doering Spark Plug Set - Fits 1936-1947 Harley-Davidson G, 1930-1936 RL, 1937-1947 W, 1937-1948 U, 1926-1929 J, 1930-1936 VL, 1924-1930 JD
V-Twin Mfg
$75.78Large hex original design for air cooled engines, #3 heat range terminal nuts and seal washers included.Includes top ventilated brass collars for cooling, as original, Doering design! Terminal nut is...$75.78
V-Twin - 49-0862 - Parkerized 18mm Spark Plug Socket - Fits 1936-1947 Harley-Davidson W, EL
V-Twin Mfg
$24.18Parkerized 18mm Spark plug socket. Fits:W 1936-1947EL 1936-1947Additional Information UOM1 - EA Manuf$24.18
V-Twin - 49-0624 - Polished Aluminum Spark Plug Holder - Fits 1941-1964 Harley-Davidson FL, 1936-1952 EL
V-Twin Mfg
$84.03Spark plug holder is for original style battery tops with a center rib. Holder is cast and holds two 18mm spark plugs. Original "Atlas Products" item, faithfully re-created by V-Twin MFG. Made by the...$84.03
V-Twin - 49-0448 - Globe 18mm Spark Plug Kit - Fits 1936-1947 Harley-Davidson W, EL, U, 1941-1947 FL
V-Twin Mfg
MSRP: $77.62$76.84Globe 18mm Spark plug kit includes black replica shield. Fits:W 1936-1947EL 1936-1947U 1936-1947FL 1941-1947Additional Information UOM<MSRP: $77.62$76.84
V-Twin - 49-0176 - Alloy Spark Plug Cool Fin Set
V-Twin Mfg
$27.71V-Twin - 49-0176 - Alloy Spark Plug Cool Fin SetDescriptionAlloy cool fin for spark plug fits early type spark plugs with screw terminals to fit 14mm or 18mm. Fits:All ModelsAdditional Information$27.71
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!