
Spark plug
| Model No. | Wrench Size (mm) | Part No. |
| NGK CMR4A | 16 | 168534-0 |
| NGK CMR6A | 16 | 168401-9 |
| NGK CMR6H | 16 | 168652-4 |
| NGK CMR7A-5 | 16 | 168599-2 |
| NGK BPM7A | 16 | 168588-7 |
| NGK BPMR8Y | 16 | 649500-1 |
| NGK BMR7A | 16 | 168662-1 |

| Model No. | Wrench Size (mm) | Part No. |
| NGK CMR4A | 16 | 168534-0 |
| NGK CMR6A | 16 | 168401-9 |
| NGK CMR6H | 16 | 168652-4 |
| NGK CMR7A-5 | 16 | 168599-2 |
| NGK BPM7A | 16 | 168588-7 |
| NGK BPMR8Y | 16 | 649500-1 |
| NGK BMR7A | 16 | 168662-1 |