2004 Porsche Cayenne Fuel Filter Part Number: Complete Guide

The 2004 Porsche Cayenne fuel filter is a critical component for maintaining engine performance and fuel system cleanliness. Using the wrong part number can lead to poor drivability, reduced fuel efficiency, or even damage. This guide provides the exact OEM part numbers for each engine variant and offers practical advice on replacement intervals and aftermarket alternatives.

Understanding the 2004 Porsche Cayenne Fuel Filter

The fuel filter on a 2004 Cayenne is a canister-type unit mounted under the vehicle, typically on the driver’s side near the fuel tank. It traps contaminants from the fuel supply before they reach the injectors. Porsche recommends replacing the filter every 60,000 miles or 4 years, whichever comes first. Neglecting this service can clog the filter, causing hard starting, hesitation, or a drop in power.

OEM Fuel Filter Part Numbers by Engine

The 2004 Cayenne came with three engine options: the base 3.2L V6, the 4.5L V8 (Cayenne S), and the 4.5L twin-turbo V8 (Cayenne Turbo). Each uses a slightly different fuel filter based on fuel line connections and flow requirements.

2004 Cayenne Base (3.2L V6)

• OEM Part Number: 955.110.111.00
• Cross References: Mann WK 614/1, Mahle KL 50/1, Bosch 0 450 111 211
• Details: This filter has a lower flow rate than the V8 version. Do not substitute the V8 filter, as it may not seat properly.

2004 Cayenne S (4.5L V8)

• OEM Part Number: 955.110.111.01
• Cross References: Mann WK 614/2, Mahle KL 50/2, Bosch 0 450 111 212
• Details: This filter is rated for the higher fuel volume of the V8. It is also compatible with the Turbo model.

2004 Cayenne Turbo (4.5L Twin-Turbo V8)

• OEM Part Number: 955.110.111.01 (same as S)
• Cross References: Same as S
• Details: Even though the Turbo has higher fuel pressure demands, the filter itself is identical to the S. The fuel pressure regulator is separate.

Always verify your part number by looking at the existing filter or using your VIN with a Porsche dealer or reliable parts database. Supersessions are rare but possible.

Where to Find the Part Number on Your Vehicle

If you need to confirm the current filter, locate it underneath the rear driver’s side area. The part number is stamped on the filter canister. You may need to clean off dirt with a rag. Alternatively, check your owner’s manual or service records for the original part number.

Fuel Filter Replacement Interval

Porsche’s official recommendation for the 2004 Cayenne is to replace the fuel filter every 60,000 miles or 4 years. If you frequently drive on dusty roads or use low-quality fuel, consider shortening the interval to 30,000 miles. Symptoms of a clogged filter include:

• Rough idle
• Hesitation during acceleration
• Difficulty starting (especially after the car sits)
• Check Engine Light for lean fuel trims

Replacing the filter is a moderate DIY job if you have basic mechanical skills. You will need to relieve fuel pressure, disconnect the quick-connect fittings, and be cautious of fuel spillage.

Choosing Between OEM and Aftermarket

OEM filters from Porsche (made by Mann or Mahle) guarantee perfect fit and filtration. Aftermarket options from Mann, Mahle, Bosch, or Wix are often the same as OEM without the Porsche branding, saving money. Avoid cheap no-name filters, as they may have lower filtration efficiency or incorrect bypass valve settings.

• Pros of OEM: Exact fit, proven reliability, warranty compatibility.
• Pros of Aftermarket: Lower price, often identical manufacturer.
• Cons of Aftermarket: Some brands deviate from OE specifications; confirm return policy.

Final Recommendation

For most 2004 Porsche Cayenne owners, the safest choice is an OEM filter (955.110.111.00 for base, 955.110.111.01 for S/Turbo). If you prefer aftermarket, choose a quality brand like Mann or Mahle that matches the OEM number exactly. Avoid mix-and-match between engine types. Replacing the fuel filter on schedule will keep your Cayenne running smoothly and prevent costly fuel system repairs.