Engine Oil Cooler Adapter For BMW E46 M52/M54/M56 Engines, Aluminum Oil Filter Cover Cap, CNC Machined, Anodized Finish
The BMW E46 Engine Oil Cooler Adapter, Aluminum Oil Filter Cover Cap is a precision-built, lightweight upgrade designed to help BMW M52/M54/M56 engines run cooler without the need to replace the entire oil filter housing. CNC machined from durable aluminum and finished with a protective anodized coating, this cap integrates an external oil cooler path that keeps oil temperatures in check during spirited driving, hot days, or heavy-duty use.
Designed for a wide range of BMW models, this adapter directs engine oil efficiently to cooler lines while circulating through the oil filter as part of the existing system. The result is steadier oil temperature, improved lubrication, and reduced thermal stress on the oil and engine components. The included AN10 fittings and two sensor ports offer flexible integration for oil temperature and pressure monitoring, so you can track performance with confidence.
Installation is straightforward for informed DIY installers, and the design is aimed at preserving the original filter housing setup. A key benefit is that you gain external cooling capability without the larger effort and cost of a full housing replacement. This makes it a compelling upgrade for daily drivers that see urban commutes and occasional track days alike.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Trust and reliability are at the core of this product. Providing quality and trusted service since 2002 at intercyprus.com.
Main Benefits & Practical Tips
- Prolonged engine life under stress: Lower oil temperatures reduce viscosity breakdown and help maintain effective lubrication during high-load driving or sustained highway speeds.
- Sensor-ready integration: Two ports compatible with oil temperature and oil pressure sensors allow real-time monitoring of condition and performance.
- Efficient upgrade path: Add external oil cooling without swapping out the entire oil filter housing, keeping maintenance simpler and more affordable.
- Practical use: Perfect for track-day sessions, hot climate commutes, or heavy-load conditions where oil temps rise quickly.
- Installation tip: Note that a small modification is required—sand the intake manifold slightly during installation for a clean fit.
- Maintenance tip: After installation, check for leaks at the AN10 fittings and NPT ports, and torque fittings to the manufacturer’s guidelines to ensure a secure seal.
Product specifications
- Material: Aluminum alloy
- Surface: Anodized finish
- Interface data: Two 1/8" NPT ports, two AN10 fittings
- Replacement part numbers: 11421744000, 11421741000
- Recommended fitment: For BMW 3 Series (E36 323i/328i 1992-1999, E46 323i/Ci 1999-2005, 325i/Ci/325Xi 1999-2005, 328i/Ci 1999-2005, 330i/Ci/Xi 1999-2005), BMW 5 Series (E39 525i 528i 530i M52/M54, E60/E61 525i 2004-2005, E60/E61 530i 2004-2005), BMW X3 (E83 2.5i/3.0i 2004-2006 M54), BMW X5 (E53 3.0i 2000-2006), BMW Z3 (2.0i, 2.2i, 2.5i, 2.8i, 3.0i 1999-2002 M52/M54), BMW Z4 (E85 2.5i, 3.0i 2003-2008).
- Origin: Mainland China
- Special features: Lightweight aluminum construction; CNC machined and hand-assembled; designed to lower engine-compartment oil temperature and simplify integration with external cooler lines
Package includes:
- 1 x Aluminum oil filter cover cap with AN10 fittings and 2 sensor ports
- 2 x AN10 fittings
Warnings / Reminders
- Only small modification required; sand the intake manifold a little bit for installation.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
At intercyprus.com since 2002 — trusted for quality and reliability.