| Model | Engine | Year | Standard Plug | Gap (mm) | Iridium Power | Iridium Tough |
|---|---|---|---|---|---|---|
| Arrow | Â | W20EPU | 0.8 | IW20 | VW20 | |
| Hunter | Â | W20EPU | 0.8 | IW20 | VW20 | |
| Husky | Â | W20EPU | 0.8 | IW20 | VW20 | |
| IMP | Â | W20EPU | 0.8 | IW20 | VW20 | |
| Minx | Â | 1955 to 1957 | W20EPU | 0.8 | IW20 | VW20 |
| Minx | 1.6LÂ Series 4 | 1963 to 1965 | W20ESU | 0.8 | ||
| Minx | 1.6LÂ | 1966 on | W20EPU | 0.8 | IW20 | VW20 |