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Details
| Specification | Value |
|---|---|
| Brand | MANN-FILTER |
| MPN | cf12004 |
| Height [mm] | 327 mm |
| Inner Diameter [mm] | 82 mm |
| Outer Diameter [mm] | 120 mm |
| for article number | C 24 985 |
| Outer Diameter 1 [mm] | 114 mm |
OE/OEM numbers (3)
About this product
MANN-FILTER Secondary Air Filter (CF 12 004) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Height [mm]: 327 mm, Inner Diameter [mm]: 82 mm, Outer Diameter [mm]: 120 mm, for article number: C 24 985, Filter type: Stainless Steel — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 300-11897, 49766, A-57280, AF4230 and 4 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MANN-FILTER 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 MANN-FILTER
MANN-FILTER, part of the MANN+HUMMEL group founded in 1941 in Ludwigsburg, Germany, is one of the world's leading filtration specialists. The brand produces oil filters, air filters, fuel filters, cabin filters, and hydraulic filters for virtually every vehicle application. MANN-FILTER is an OE supplier to major manufacturers including Volkswagen, BMW, and Mercedes-Benz. With ISO/TS 16949 certification and products tested to the highest standards, MANN-FILTER ensures clean oil, air, and fuel for optimum engine protection and longevity.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (5)
Secondary Air Filter MANN-FILTER CF 12 004 — compatible car models
| Manufacturer article number (MPN) | CF 12 004 |
|---|---|
| OE part numbers | 300-11897, N101956, P601774 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MANN-FILTER cf12004 . EU General Product Safety Regulation (GPSR): 2. Filter type: 9. for article number: C 24 985. Height [mm]: 327 mm. Inner Diameter [mm]: 82 mm. Outer Diameter 1 [mm]: 114 mm. Outer Diameter [mm]: 120 mm
- 1x Secondary Air Filter
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 Secondary Air Filter compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Secondary Air Filter fits. All fitment data is verified through TecDoc.
What specifications does this MANN-FILTER Secondary Air Filter have?
This MANN-FILTER Secondary Air Filter has the following specifications: Height [mm]: 327 mm; Inner Diameter [mm]: 82 mm; Outer Diameter [mm]: 120 mm; for article number: C 24 985; Filter type: 9; Outer Diameter 1 [mm]: 114 mm. Check the full specifications table above for complete details.
What OE part numbers does this Secondary Air Filter replace?
This Secondary Air Filter replaces OE part numbers: 300-11897, N101956, P601774. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Secondary Air Filter cost?
This MANN-FILTER Secondary Air Filter is available for £29.99. Secondary Air Filter prices vary depending on brand, specifications, and vehicle compatibility. MANN-FILTER parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Secondary Air Filter?
Regular inspection of your Secondary Air Filter is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Secondary Air Filter?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Secondary Air Filter fitted by a professional mechanic.
Can I use this part as a replacement for OE 300-11897?
Yes, this MANN-FILTER Secondary Air Filter is a direct replacement for OE part number 300-11897. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the MANN-FILTER CF 12 004 the same as the MANN-FILTER C 1342?
No, while both are Secondary Air Filter parts, they are different products. The MANN-FILTER CF 12 004 has Height [mm]: 327 mm, Inner Diameter [mm]: 82 mm, Outer Diameter [mm]: 120 mm. The MANN-FILTER C 1342 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
