Denso Spark Plugs
CC |
Norton Model |
Denso Plug |
|---|---|---|
| 850cc | Commando Interstate and Roadster | W22EP-U |
| 750cc | Commando Fastback, Commando S, Commando Roadster | W22EP-U |
| 745cc | Atlas/Ranger P11A | W24EP-U |
| 650cc | Dominator, Mercury ,Manxman | W22ES-U |
| 600cc | 19R, 19S, 77, 99 OHV | W20ES-U |
| 596cc | Big 4 SV | W20ES-U |
| 500cc | All Models 19.0 mm (3/4”) Heads | W22ES-U |
| 500cc | ES2 OHV 12.7mm (1/2”) Heads | W22FS-U |
| 500cc | 19.00 mm (3/4”) Heads | W22ES-U |
| 500cc | 88SS (OHV) | W22ES-U |
| 500cc | 16H SV | W20ES-U |
| 499cc | 30 (OHV) | W24ES-U |
| 490cc | 500T (OHV) | W20ES-U |
| 384cc | ES400 | W22ES-U |
| 350cc | 40 (OHV) | W24ES-U |
| 350cc | 50 (OHV) Twin Navigator | W22ES-U |
| Source: 2013 Denso Corporation |
| Where they will fit I prefer to use the EP-U variant with the projected nose. | ||
| "Use a spark plug that has a standard heat range. If this type of spark plug is used for traveling at low speed or over short distances (resulting in the occurrence of carbon fouling) it is recommended that you use spark plugs that have a low heat range." eg go from a W22 to a W20 |