0000 400 7009 STIHL, 0000 400 7009 B STIHL, 0 242 035 500 BOSCH, USR7AC BOSCH, USR7AC (OE) BOSCH, USR7AC (OES) BOSCH, 965 CHAMPION, 965-1 CHAMPION, RZ7C CHAMPION, 7599 NGK, CMR5H NGK. 2x Fits BOSCH 0 242 035 503.
eBay