FPM Oil Filter Housing Seal Gasket for BMW
The FPM oil filter housing seal gasket is a precision sealing component designed specifically for BMW engines, including N52, N55, and N20 platforms. It provides a reliable seal between the oil filter housing, engine block, and oil cooler assembly to prevent oil leakage, maintain pressure integrity, and ensure stable lubrication throughout the engine system.
This gasket (OE references 11428637821 and 11428637820) is manufactured from high-performance FPM (fluoroelastomer) material, chosen for its superior chemical resistance, high temperature stability, and excellent compression set resistance - essential for modern turbocharged and high-output engines.
1. Function and Importance
- Provide leak-proof sealing at the oil filter housing interface
- Maintain oil pressure and prevent external oil loss
- Compensate for thermal expansion and mechanical vibration
- Protect engine components by ensuring consistent lubrication
Engineering Insight: The oil filter housing gasket must withstand high oil temperatures, pressure spikes, and repeated thermal cycling without excessive compression set or chemical degradation.
2. Material – FPM (Fluoroelastomer)
| Material | Temperature Range | Chemical Compatibility | Key Properties |
|---|---|---|---|
| FPM (Fluoroelastomer) | -20°C to +200°C (continuous) | Engine oil, coolant, fuel vapors | High thermal stability, excellent oil and chemical resistance |
Material Selection Note: FPM is selected for premium oil sealing applications due to its exceptional resistance to engine oil, high temperature, oxidation, and deformation under compression.
3. Fitment & Compatibility
- Compatible with BMW N52 engine series
- Compatible with BMW N55 engine series
- Compatible with BMW N20 engine series
- Direct replacement for OE parts 11428637821 and 11428637820
- OEM-level form, fit, and function for oil filter housing assemblies
4. Key Performance Tests
- Compression Set Test: Ensures the gasket maintains sealing force over extended time
- Thermal Aging Test: Validates performance after repeated heating and cooling cycles
- Chemical Resistance Test: Confirms resistance to engine oil and coolant exposure
- Dimension & Fit Inspection: Verifies precise fit to OEM housing interfaces
5. Installation & Maintenance Tips
- Clean all mating surfaces before installation to remove old gasket residue
- Avoid over-tightening bolts to prevent excessive compression
- Replace gasket whenever the oil filter housing is serviced
- Inspect for hardening, cracking, or deformation periodically
About Us
Best Seal supplies high-quality FPM oil filter housing seal gaskets for BMW applications, engineered to meet or exceed OEM specifications for durability, precision fit, and sealing performance. Our products support OEM manufacturers and aftermarket needs worldwide.
- Custom and standard gasket designs based on OEM references
- High-quality elastomer materials with strict performance testing
- Precision dimensional control and consistent sealing performance
- Reliable global supply and fast delivery
Packaging & Shipping
📦 Packaging Options：
Standard Packaging:
- Sealed PE bags
- Inner cartons with protective layers
- Pallet packing for bulk shipment
Custom Packaging (Available on request):
- Small pouch / small bag packing
- Individual heat-sealed plastic bag with cardboard backing
- Individual bubble-wrap protection
- Light-proof black packaging
- Customized labeling or barcodes
🚚 Shipping Methods
- DHL / FedEx / UPS express
- Air freight for urgent orders
- Sea freight for bulk orders
- FOB / CIF / DDP trade terms available
Certification
Our gaskets comply with major international standards, including:
ISO 9001, ASTM D2000, FDA, NSF, WRAS, RoHS, REACH, CE, UL.
All materials are fully tested for physical, chemical, and hygienic performance to ensure long-term reliability in sanitary and industrial systems.
Medical rubber gaskets provide stable, clean, and safe sealing performance for the most demanding healthcare environments, supporting long-term reliability and product integrity.
Conclusion
The FPM oil filter housing seal gasket for BMW N52, N55, and N20 engines provides reliable, long-lasting sealing performance under demanding thermal and chemical environments. With premium FPM material and precision design, it ensures optimal oil circuit integrity and contributes to stable engine lubrication and service life.
Contact US：
Xiamen Best Seal Imp and Exp Co.,Ltd
Tel: +86-592-5782315
Mob: +8618950159396
Email: yunying2@bestsealhk.com
Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China
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