10 pc Champion Copper Plus 810 (RA8HC) Spark Plugs for 6R12 D6EA D7EA D7ES D7EV D7RTC D7TC DCPR6E
Autolite® 4164 Copper Spark Plug for V-Twins - Replacement for OEM# 6R12 - Fits 1986-Up Sportster (XL) and 1999-2017 Twin Cam Harley Models and All 1988-2008 Buell Models - MADE IN USA - Billet Proof Designs
Champion Spark Plug RA8HC for Twin Cam 99-17, Sportster XL 86-later & Buell 96-02 (excl. X1) at Thunderbike Shop