| ITEM DETAILS | |
| Type | 97506 (NGK heat range 8) |
| Thread/Diameter | 12mm |
| Thread pitch | 1.25mm |
| Reach | 26.5mm (1.04") |
| Hex size | 14mm Bi-Hex |
| Gap | 031" (0.8mm), recommended 020" (0.5mm) for tuned engines |
| Terminal Type | Solid |
| Resistor | Yes |
| ITEM CROSS REFERENCES | |
| BMW | 12120039664, 12120038896, 12120038704, 12120040581 |
| BOSCH | 0 242 145 541 |
| BERU | Z 364 |
| Champion | OE243 |
| NGK | SILZKBR8B8S, SILZKBR8C8S, SILZKBR8E8S, SILZKBR9F8S |
| HANS PRIES | HP503 199 |