Drag Specialties Iridium Spark Plugs for '99-17 Harley Davidson Twin Cam and '86-21 XL (except '21 Sportster S/RH1250S)
NGK Reference DCPR7EIX/Harley-Davidson Reference 6R12
- Iridium electrode is smaller than a standard electrode; requires less voltage
- Hotter spark and extended spark plug service life compared to conventional plugs
- Has the distinctive black ceramic with red lettering and gold-colored corrosion-protected coating on the metal shell
- Exceed OEM specifications for plug service life
- RESISTOR TYPE
- STYLE: BPR5ES-11
- MODEL: IRIDIUM
- TERMINAL CONFIGURATION: REMOVABLE NUT
- CENTER ELECTRODE PROJECTION: PROJECTED
- ELECTRODE TIP MATERIAL: IRIDIUM
- CENTER ELECTRODE TYPE: NECKED DOWN
- GROUND ELECTRODE CONFIGURATION: SINGLE
- GROUND ELECTRODE SHAPE: STANDARD
- THREAD REACH: 11/16" / 17.5 MM
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
