NGK BPM7A spark plug special short thread racing cylinder head | Solex
Manufacturer: NGK · Candle designation: BPM7A · Candle thread type: short · Thread type: MF14x1.25 (fine pitch thread) · Width across flats SW: 21 mm · Spark plug socket: M4 · Spark plug socket: SAE · Suppressed: No · Area of application: High End · Area of application: Performance · Area of application: Racing · Area of application: Tuning