409 Pro Race Spark Plug Wire Kit – XL / FL

Upgrade the spark and throttle response on your Evo and early Twin Cam Sportster and FL models with the Sumax 409 Pro Race Spark Plug Wire Kit. Built around a 10.4 mm Spiro-Pro core, these wires deliver up to 10× the conductivity of standard carbon-core wires, running cooler, lasting longer, and keeping your Harley firing clean. Each pair comes precut with terminals and boots already installed, wrapped in high-temp silicone insulation rated to 600°F for serious durability. Made in the USA and ready to drop in — no trimming, no hassle.

Includes

• 1 pair of 10.4 mm performance spark plug wires

• Preinstalled plug boots

• Preinstalled coil boots and terminals

Fitment

Harley-Davidson XL / Sportster Models

• 2002–2003 XL883R Sportster 883 Roadster

• 2002–2003 1200 XLCP

• 2002–2003 883 Roadster EFI XLR

• 2002–2003 1200 Custom EFI XLC

• 1999–2003 XL883C Sportster 883 Custom

• 1999–2003 883 Custom EFI XLC

• 1999–2003 Sportster 1200 XLH

• 1998 883 Custom XLC

• 1996–2003 XL1200S Sportster 1200 Sport

• 1996–2003 XL1200C Sportster 1200 Custom

• 1988–1998 XLH1200

• 1988 XLH1100

• 1987–1998, 2002–2003 XLH883HUG Sportster 883 Hugger

• 1987, 1989–2003 Sportster 883 XLH

• 1986–1995 XLH883DLX Sportster 883 Deluxe

• 1986–1987 XLH1100

• 1986, 1988, 1999–2001 XLH883

Harley-Davidson FL / Touring Models

• 1998 FLTRI Road Glide

• 1998 Electra Glide Ultra Classic FLHTCU

• 1998 FLHRCI Road King Classic

• 1998 FLTR Road Glide

• 1996–1998 FLHTCI Electra Glide Classic

• 1996–1997 FLHRI Road King

• 1996 Tour Glide Ultra Classic FLTCU

• 1996 FLTCUI Tour Glide Ultra Classic

• 1995–1998 FLHTCUI Electra Glide Ultra Classic

• 1995–1998 Electra Glide Police FLHTPI

• 1995–1997 Road King Classic EFI FLHRC

• 1995, 1998 Road King EFI FLHR

• 1995 Electra Glide Classic EFI FLHTCI

• 1994–1998 FLHR Road King

• 1989–1997 FLHTCU Electra Glide Ultra Classic

• 1989–1995 FLTCU Tour Glide Ultra Classic

• 1987–1993 FLHS Electra Glide Sport

• 1986–1987, 1995–1998 FLHT Electra Glide Standard

• 1984–1986 Tour Glide FLT

• 1983–1998 FLHTC Electra Glide Classic

• 1983–1998 Electra Glide Police FLHTP

• 1983–1985 Electra Glide Standard FLHT

• 1981–1993 FLTC Tour Glide Classic

• 1980–1983 FLT Tour Glide

• 1980, 1994 Tour Glide Classic FLTC