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CP247
Gallery
BrandFILTRON
MPNAM 402W
OE refs46
SKU0256-AM 402W
GTIN / EAN5904608884022

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Details

SpecificationValue
BrandFILTRON
MPNam402w
Height [mm]474 mm
for article numberAM 402
Outer Diameter 1 [mm]140 mm
Outer Diameter 2 [mm]130 mm
Inner Diameter 1 [mm]118 mm
Inner Diameter 2 [mm]18 mm

OE numbers (46)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 1902132. The red ring marks where this part installs on the vehicle.

Frame And Spring - Rear Seat Back; RH/LH — 5 Body And Paint — 50110 Body And Paint.Seats And Related Parts › 5011025C Rear Seat Back
5 Body And Paint · 50110 Body And Paint.Seats And Related Parts › 5011025C Rear Seat BackPosition <613A38A

About this product

The FILTRON Secondary Air Filter (AM 402W) 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: Height [mm]: 474 mm, for article number: AM 402, Filter type: Stainless Steel, Outer Diameter 1 [mm]: 140 mm, Outer Diameter 2 [mm]: 130 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 00 0643 331 1, 0178 443 1, 019824, 0414 4966 and 122 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FILTRON 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.

Suitable cars

Vehicle matches are curated from manufacturer data

Confirmed fits based on manufacturer data.

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Secondary Air Filter FILTRON AM 402Wcompatible car models

Manufacturer article number (MPN)AM 402W
OE part numbers00 0643 331 1, 0178 443 1, 0414 4966, 0415 5966, 060533124, 0643 331 0, 0643 331 1, 0691280, 11033783, 11033783 6640, 11110151, 11110151-5, 1571418, 190 2132, 190 9132, 239 4637, 240 00 505, 368 016, 368 018, 4134-415 (+26 more)
Compatibility check

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Description and what's included

FILTRON am402w . EU General Product Safety Regulation (GPSR): 2. Filter type: 9. for article number: AM 402. Height [mm]: 474 mm. Inner Diameter 1 [mm]: 118 mm. Inner Diameter 2 [mm]: 18 mm. Outer Diameter 1 [mm]: 140 mm. Outer Diameter 2 [mm]: 130 mm

What's included:
  • 1x Secondary Air Filter
Shipping, returns, warranty

Free UK delivery on orders over £99.00. Tracked standard shipping.

  • Standard delivery: 5–9 business days
  • Order before 5pm — ships the next working day
  • 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 FILTRON Secondary Air Filter have?

This FILTRON Secondary Air Filter has the following specifications: Height [mm]: 474 mm; for article number: AM 402; Filter type: 9; Outer Diameter 1 [mm]: 140 mm; Outer Diameter 2 [mm]: 130 mm; Inner Diameter 1 [mm]: 118 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: 00 0643 331 1, 0178 443 1, 0414 4966, 0415 5966, 060533124, 0643 331 0, 0643 331 1, 0691280 and 38 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Secondary Air Filter cost?

This FILTRON Secondary Air Filter is available for £39.99. Secondary Air Filter prices vary depending on brand, specifications, and vehicle compatibility. FILTRON 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 00 0643 331 1?

Yes, this FILTRON Secondary Air Filter is a direct replacement for OE part number 00 0643 331 1. 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 FILTRON AM 402W the same as the FILTRON AM 401W?

No, while both are Secondary Air Filter parts, they are different products. The FILTRON AM 402W has Height [mm]: 474 mm, for article number: AM 402, Filter type: 9. The FILTRON AM 401W 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.

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