MOTORCYCLE

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This website and the catalog (compatibility chart) and other printed materials are updated and released once a year. Compatibility information may change after the update and release. Also, please understand that vehicles launched after that date are not reflected in the information.

NORTON 

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CC MODEL REMARK DENSO IRIDIUM POWER IRIDIUM RACING GAP
850 Commando Interstate W22EP-U IW22 IW01-□ 0.6
850 Commando Roadster W22EP-U IW22 IW01-□ 0.6
750 Commando Fastback, Commando S/Commando Roadster W22EP-U IW22 IW01-□ 0.6
745 Atlas/Ranger P11A W24EP-U IW24 IW01-□ 0.6
650 Dominator/Mercury/Manxman W22ES-U - IW01-□ 0.6
600 19R/19F/77/99OHV W20ES-U - IW01-□ 0.6
596 Big 4 SV W20ES-U - IW01-□ 0.6
500 All Models 19.0 mm (3/4”) Heads W22ES-U - IW01-□ 0.6
500 ES2 OHV 12.7mm (1/2”) Heads W22FS-U IWF22 - 0.6
500 19.00 mm (3/4”) Heads W22ES-U - IW01-□ 0.6
500 88SS (OHV) W22ES-U - IW01-□ 0.6
500 16H SV W20ES-U - IW01-□ 0.6
499 30 (OHV) W24ES-U IW24 IW01-□ 0.6
490 500T (OHV) W20ES-U - IW01-□ 0.6
384 ES400 W22ES-U - IW01-□ 0.6
350 Manx 30 W31ES-ZU IW31 IW01-□ 0.6
350 40 (OHV) W24ES-U IW24 IW01-□ 0.6
350 50 (OHV) Twin Navigator W22ES-U - IW01-□ 0.6
348 Manx 40 W31ES-ZU IW31 IW01-□ 0.6
250 Jubulee OHV W22ES-U - IW01-□ 0.6
250 Rotary Engine Commander, F1 U24ES-N IU24 IU01-□ 0.6