Upgrade your Softail or Low Rider ignition system with the Sumax Pro Series 10.4 mm Spark Plug Wires — built for riders who want cleaner spark, cooler temps, and long-term dependability. These wires use a Spiro-Pro performance core for up to 10x the conductivity of carbon-core wires and are wrapped in high-temp silicone rated to 600°F. Precut, pre-terminated, and proudly made in the USA, this kit delivers a strong, stable spark for both everyday riding and high-output builds.
Includes • 1 complete spark plug wire kit • Preinstalled plug boots and coil boots • Precrimped, ready-to-install terminals
Fitment • 2022–2023 FXLRS Low Rider S 117 • 2022–2023 FXLRST Low Rider ST 117 • 2022 Softail Street Bob FXBB • 2022 FXRST Low Rider El Diablo 117 • 2021–2023 FXBBS Street Bob 114 • 2020–2023 FXST Softail Standard 107 • 2020–2021 FXLRS Low Rider S 114 • 2019–2020 FXDRS FXDR 114 • 2018–2023 FLFBS Fat Boy 114 • 2018–2023 FLHCS Heritage Classic 114 • 2018–2021, 2023 FXFBS Fat Bob 114 • 2018–2021 FLSL Softail Slim 107 • 2018–2021 FLHC Heritage Classic 107 • 2018–2021 FLSB Sport Glide 107 • 2018–2020 FXBB Street Bob 107 • 2018–2020 FLDE Deluxe 107 • 2018–2020 FXLR Low Rider 107 • 2018–2019 FXFB Fat Bob 107 • 2018–2019 FLFB Fat Boy 107
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