BMW N54 Replacement PCV Valve for 1M, 135i, 335i, 535i, 740i, X6, Z4 440i (F32) 750i — N63 / N63TU

750i — N63 / N63TU 4

Dyno Graph:

providing superior filtration without the need for oiling

These will both open and close simultaneously on M vehicles

Trusted Tuner: Doc Vu has a documented history of offering hands‑on tuning support across BMW N engines

BMW N54 Replacement PCV Valve for 1M, 135i, 335i, 535i, 740i, X6, Z4 440i (F32) 750i — N63 / N63TUThe RB N54 PCV Valve is an upgraded replacement PCV valve for your N54 Engine and is strongly recommended for your high performance (or higher mileage) N54. The OEM plastic PCV valve does not hold pressure well even when brand new. What the leaky PCV valve means is that when you are in boosted conditions, the "highly" pressurized PCV valve leaks turbocharged pressures into the crankcase. Pending on the condition of your PCV valve it could leak worse