OEM TRW exhaust valve for the following M42/M50 powered BMW's:
- E30 318i/iS (M42, 8 per car)
- E36 318 (M42 thru 8/92, 8 per car)
- E36 325i/iS (M50 thru 8/92, 12 per car)
- E34 525i/iT (M50 thru 8/92, 12 per car)
Diameter is 30.5mm, stem is 7mm. BMW P/N 11 34 1 722 909
