Champion RCJ7Y Spark Plug

CHAMPION spark plug. Type: Nickel, resistor suppressed. Electrode gap: 0.7 mm. Thread: 14 mm x 9.5 mm. Wrench size: 19 mm. BOSCH: WSR6F. CHAMPION: CCH859, RCJ7Y. DENSO: W22MPR-U. ECHO: 159017-10230, NGK-BPMR7A. HUSQVARNA: 501 21 66-02, 501 21 66-07. HUSQVARNA: 503 23 50-11, 503 23 50-14. HUSQVARNA: 503 23 51-08, 503 23 51-11. HUSQVARNA: 503 23 51-12, 514 43 21-01. HUSQVARNA: 531 02 55-02, 538 04 00-10. HUSQVARNA: 538 24 00-10, 577 61 66-02. HUSQVARNA: 952 03 01-50. NGK: BPMR7A. RATIOPARTS: 11-419. ZENOAH: 1630-73110, 5933-73110.