Spark Plug - Bosch WR-7-DC+ (7900)
Note: Check vehicle applications tab for fitment details.
Reference part number: 999-170-156-90
Manufacturer: Bosch
Manufacturer part number: WR-7-DC+ (7900)
Vehicle Fitment
| Model | Engine | Years | Fuel System | Option | Qty Required | Comments |
| 912E | 2.0 | 1976 | FI | 4 | ||
| 911 Carrera | 3.2 | 1984-1989 | FI | 6 | ||
| 911 Speedster | 3.2 | 1989 | FI | 6 | ||
| 928 | All | 1985-1991 | FI | 8 | ||
| 924S | 2.5 | 1987-1988 | FI | 4 | ||
| 944 Base | 2.5 | 1986-1989 | FI | 4 | ||
| 944 Turbo | 2.5 | 1986-1989 | FI | 4 | ||
| 944 S | 2.5 | 1986-1988 | FI | 4 |