Oil Filter Housing


Fits:
Porsche 996 TurboGT2 2001-05
Porsche 996 GT3 1999-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610721771
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04

Fits:
Porsche 996 TurboGT2 2001-05
Porsche 996 GT3 1999-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610721771
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
The smaller of the two o-rings used on the oil filter cover cap - 10 x 2.
Fits:
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 / RS 1999-05
Porsche 997-1 Turbo / GT2 2007-09
Porsche 997-2 GT2 RS 2010-13
Porsche 997 GT3 / RS 2007-11
Diagram ref. 21.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970746540
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII GT2 RS 2011-13
Engine Oil Filter Housings – Reliable Protection for Porsche Lubrication Systems
The engine oil filter housing plays a critical role in your Porsche’s lubrication system, securely enclosing the oil filter while regulating oil flow throughout the engine. It maintains proper pressure, prevents leaks, and ensures that oil is efficiently filtered before reaching critical moving components — protecting your engine from premature wear and contamination.
At Design911, we offer a comprehensive selection of oil filter housings and related components designed for long-lasting reliability and a perfect fit. Constructed from high-grade aluminium, reinforced polymers, or composite materials, these housings are engineered to deliver maximum durability, leak-free performance, and precise compatibility with Porsche engines.
Whether you’re servicing a modern 992 or maintaining a classic air-cooled 911, our oil filter housings provide dependable sealing, pressure stability, and performance that meets the demands of everyday and high-performance driving.
What Does an Oil Filter Housing Do?
The oil filter housing is responsible for mounting the oil filter securely and directing the flow of engine oil through it.
Core Functions:
- Holds
and seals the oil filter element in place.
- Regulates
oil pressure and flow within the lubrication circuit.
- Prevents
leaks through precision sealing surfaces.
- Ensures filtered oil reaches all critical engine components.
- Integrates with temperature and pressure sensors in some Porsche models.
A properly functioning oil filter housing ensures that the engine is always supplied with clean, well-pressurised oil — essential for longevity and consistent performance.
Why Do Oil Filter Housings Fail?
Due to constant exposure to heat, oil pressure, and vibration, oil filter housings can wear out or become damaged over time.
Common Causes of Failure Include:
- Cracks
or warping caused by heat cycles or over-tightening.
- Degraded
seals or O-rings, leading to leaks.
- Contaminant
build-up affecting oil pressure regulation.
- Thread
damage during filter installation or removal.
- Material fatigue in older or high-mileage vehicles.
Symptoms of housing failure include oil leaks near the filter area, fluctuating oil pressure, or visible cracks, all of which can compromise lubrication and engine safety.
Why Replace Oil Filter Housings?
Replacing a worn or cracked oil filter housing ensures proper oil pressure, efficient filtration, and leak-free operation. Our precision-engineered housings are manufactured using advanced materials and modern casting or CNC machining techniques, guaranteeing reliability under all operating conditions.
Key Benefits:
- Restores proper oil circulation and pressure balance.
- Prevents oil leaks and contamination.
- Improves filtration efficiency and engine protection.
- Constructed from heat- and corrosion-resistant materials.
- Direct-fit
compatibility for a wide range of Porsche models.
- Ideal for regular servicing, rebuilds, or preventive maintenance.
A replacement oil filter housing not only restores performance but also ensures the longevity of your Porsche’s engine and lubrication system.
Highlights:
- High-quality Porsche oil filter housings and sealing components.
- Precision-engineered for strength, heat resistance, and leak prevention.
- Improves oil system reliability and efficiency.
- Suitable for classic air-cooled and modern water-cooled Porsche models.
- Direct-fit replacements for easy installation.
- Perfect for rebuilds, maintenance, or performance servicing.