BMW Vented Oil Cap
BMW Vented Oil Cap with Dual AN10 Catch Can Ports
Vented oil cap for BMW engines. Internal perforated ports separate oil from air to reduce oil mist in the crankcase ventilation system. Two AN10 fittings for direct catch can connection.
Available in two versions:
- Carbon fiber nylon
- 3D printed aluminium (includes extra filtration)
A red gasket is included with the package. Try the OEM gasket first. Valve covers are not all the same — if the OEM gasket sits too loose, switch to the thicker included gasket.
Installation
- Remove the AN10 fitting holder from the oil cap.
- Tighten the AN lines to the adapter.
- Reinstall the holder on the oil cap.
Warning
Do not tighten the AN lines while the adapter is screwed onto the valve cover. Doing so can crack the valve cover or damage the oil cap. The oil cap is very tight to screw on when the o-rings are dry, so lubricate the o-rings before installation. After some heat cycles the o-rings become softer and make turning a lot easier.
Verify that you have the two-prong style oil cap before ordering — some updated models of newer engines changed the oil cap design. Note that some engines will need to have plastic cover trim removed/modified in order for the cap to fit.
Compatible models
Including but not limited to:
- M-series: M50, M52, M54, M57 Diesel, M60, M62
- N-series: N20, N52, N54, N55, N63
- S-series (M / high-performance): S54, S55, S63, S63TU, S65, S85
- B-series: B58 Gen1
Motorsport Use Only
This product is designed and intended for motorsport, competition, and off-road/track use only. It is not designed, tested, or approved for use on public roads.
The customer is responsible for ensuring that the installation and use of this product comply with all applicable local laws and regulations. Professional installation is recommended.