OEM GENUINE HENGST PCV Valve For VW Golf MK7 GTI/ R, Tiguan, Passat, Arteon, Scirocco, Beetle, Audi A3, Q3, TT, Skoda Octavia, Superb 06K103495BM Oil Trap, crankcase breather 06K103495 BM AG AT AA P

The Hengst is a true OEM part for the VW/Audi EA888 Gen 3 engine.

Hengst is the direct OE (Original Equipment) contract manufacturer for this exact style of plastic cylinder-head-mounted PCV valve / oil separator assembly on the EA888 platform.

Part Number & Cross-Reference Breakdown

This Hengst PCV Valve assembly replaces several revisions of the factory VAG oil separator box mounted on top of the valve cover for 1.8 TSI and 2.0 TSI Gen 3 engines (such as the Mk7 Golf GTI, Golf R, Audi S3 8V, and Audi A4 B8/ B9).

It is a direct replacement for the following VAG factory part numbers:

06K 103 495 BM (The most recent common revision) 
06K 103 495 AG 
06K 103 495 AT 
06K 103 495 AA 
06K 103 495 P

Internal Design & OEM Quality

Because the EA888 Gen 3 PCV system is notoriously sensitive to internal pressure variances, using a cheap aftermarket knockoff often causes oil consumption or immediate rear main seal failures due to incorrect crankcase vacuum.

Since Hengst holds the original manufacturing design files for this system, this pcv valve includes the precise factory specifications required to function properly:

• The internal multi-cyclone oil mist separation stages function identically to the dealer unit.
• The pressure regulation diaphragm and spring tension are calibrated exactly to VAG target idle vacuum spec.
• The integrated check valves handle full-load boost pressures without leaking into the crankcase.

If you are replacing a failing PCV on a Gen 3 engine (usually indicated by a whistling sound, rough idle, or a sudden P0171 lean code), HENGST is functionally and structurally identical to the dealer counterpart, minus the premium factory price tag.