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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| Category | Filter, interior air |
| Length [mm] | 247 mm |
| Width [mm] | 201 mm |
| Height [mm] | 40 mm |
| Weight [kg] | 0,271 kg |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- PORSCHE—991 573 623 00
- PORSCHE—9P1 819 631
Where this part fits
Original-fit position for OE 9P1819631. The red ring marks where this part installs on the vehicle.
About this product
The FEBI BILSTEIN Filter, interior air (44663) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Length [mm]: 247 mm, Width [mm]: 201 mm, Height [mm]: 40 mm, Weight [kg]: 0, 271 kg, Filter type: Carbon. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit PORSCHE models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 001-10-17548, 001-10-25850, 003-20-14434, 12192233 and 103 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FEBI BILSTEIN is a recognised supplier of automotive filtration components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About FEBI BILSTEIN
febi bilstein, founded in 1844 in Ennepetal, Germany, is one of the oldest and most comprehensive automotive parts suppliers in the independent aftermarket. febi bilstein offers over 40,000 parts spanning steering, suspension, engine, braking, cooling, and electrical systems. Certified to IATF 16949 and supplying OE-quality components, febi bilstein products undergo rigorous testing to match original equipment performance. With nearly 180 years of German engineering tradition, febi bilstein is the go-to brand for reliable, competitively priced replacement parts.
Suitable cars
Equivalent products (112)
Show all 112 OE numbers
Filter, interior air FEBI BILSTEIN 44663 — compatible car models
| Car models | PORSCHE: 718 BOXSTER (982), 718 CAYMAN (982), 911 (991), 911 (992), 911 Convertible (991), 911 Convertible (992), 911 Targa (991), 911 Targa (992), BOXSTER (981), BOXSTER Spyder (981) (+1 more) |
|---|---|
| Engines | 2.0 (982320, 982321); 2.0 (982120, 982121); 3.0 Carrera; 3.0 Carrera 4 (992410); 3.0 Carrera 4 (992610); 3.0 Carrera 4; 4 (992510); 2.7; 3.4 GTS |
| Year of manufacture | 2011-2020 |
| Manufacturer article number (MPN) | 44663 |
| OE part numbers | 991 573 623 00, 9P1 819 631 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 44663 Filter, interior air. Filter type: 8. Height [mm]: 40 mm. Length [mm]: 247 mm. Weight [kg]: 0,271 kg. Width [mm]: 201 mm
- 1x Filter, interior air
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Filter, interior air compatible with my car?
This Filter, interior air fits PORSCHE vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this FEBI BILSTEIN Filter, interior air have?
This FEBI BILSTEIN Filter, interior air has the following specifications: Length [mm]: 247 mm; Width [mm]: 201 mm; Height [mm]: 40 mm; Weight [kg]: 0,271 kg; Filter type: 8. Check the full specifications table above for complete details.
What OE part numbers does this Filter, interior air replace?
This Filter, interior air replaces OE part numbers: 991 573 623 00, 9P1 819 631. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Filter, interior air cost?
This FEBI BILSTEIN Filter, interior air is available for £19.99. Filter, interior air prices vary depending on brand, specifications, and vehicle compatibility. FEBI BILSTEIN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Filter, interior air?
Replace when you notice reduced airflow from the HVAC system, persistent musty odours, increased noise when the fan is running, or fogging windows. Most cabin filters should be changed every 15,000-25,000 miles.
What tools do I need to replace a Filter, interior air?
Tools needed: flat-head screwdriver or 8mm socket may be required to remove the glove box (location and access varies by model -- check the vehicle handbook). Difficulty: Easy DIY. Safety warning: Wear a dust mask when removing a heavily contaminated cabin filter -- it traps fine particulates, allergens, and bacteria.
Can I use this part as a replacement for OE 991 573 623 00?
Yes, this FEBI BILSTEIN Filter, interior air is a direct replacement for OE part number 991 573 623 00. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
