Gap
| Plug Type | Plug Air Gap |
| NGK BPR6ES-11 | .039 - .043 Inch (in) |
| Nippon Denso W20EPR-11 | .039 - .043 Inch (in) |
| CHAMPION RN9YC4 | .039 - .043 Inch (in) |
| Plug Type | Plug Air Gap |
| NGK BPR6ES-11 | .039 - .043 Inch (in) |
| Nippon Denso W20EPR-11 | .039 - .043 Inch (in) |
| CHAMPION RN9YC4 | .039 - .043 Inch (in) |