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Catalytic Converter for Audi A4, Audi A6 and 1 more model – BM90478
BM90478 — Petrol Cat - Image 2

BM90478 Petrol Cat for Audi A4, Audi A6 and 1 more model

£79.99 ex VAT (£95.99 inc VAT)

In stock — order by 4pm for next working day delivery, free to most UK addresses.

… Ordered afternoon one day and delivered perfectly the next. Fitted perfectly. Excellent service.Everything perfect. Cat was advertised at a decent price, website works very well, Ordered afternoon one day and delivered perfectly the next. Fitted perfectly. Excellent service.

George H., CatHive customer · October 2026

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Fitment guarantee: if a part we list for your vehicle doesn’t fit it, we collect it at our cost and send the right part or refund you in full.

14 days to change your mind: return the part unused, in its packaging.

PLEXPAD LTD trading as CatHive · Company number 14156842 · Registered office 124 City Road, London EC1V 2NX · 0207 870 3694

Getting it fitted

Any garage or exhaust centre can fit this part. Its fitting kit is included.

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Garages: open a Trade Account for trade prices.

Fits 6 vehicles (12 variants) — see the list or check yours before you buy.

Fitting kit included — no hidden extras (FK90478B)

2 years warranty

Seen this part cheaper? Our Price Promise beats it by half the difference.

SKU: BM90478 Category: Manufactured by BM Catalysts

Fits these vehicles (6 vehicles, 12 variants)

  • Audi
  • A4 2.4 Petrol V6 incl Quattro(AGA;ALF;APS;ARJ left hand;not OBD), 3/1997 to 2/2001, 2
  • A4 2.4 Petrol V6 incl. Quattro (AJG;APZ engs; left hand;not OBD), 8/1997 to 6/2000, Euro 2 Engine codes AJG, APZ
  • A4 2.6 Petrol V6 Quattro (ABC engine; left hand), 11/1994 to 7/1997, Euro 2 Engine code ABC
  • A4 2.8 Petrol V6 Quattro (AAH engine; left hand), 11/1994 to 7/1997, Euro 2 Engine code AAH
  • A4 2.8 Petrol V6 inc.Quattro(ACK;AHA;ALG;APR;AQD; left hand), 8/1997 to 6/2000, Euro 2
  • A6 2.4 Petrol Mk.2 V6 incl. Quattro (AGA;ALF;APS;ARJ; left hand), 4/1997 to 2/2001, Euro 2
  • A6 2.4 Petrol Mk.2 V6 incl. Quattro (AJG;APZ; not OBD;left hand), 4/1997 to 6/2000, Euro 2
  • A6 2.4 Petrol Mk.2 V6 incl. Quattro (ALW;ARN; not OBD;left hand), 8/1997 to 6/2000, Euro 2
  • A6 2.8 Petrol Mk.2 V6 incl. Quattro (ACK;ALG;APR;AQD; left hand), 4/1997 to 2/2001, Euro 2
  • A6 2.8 Petrol Mk.2 V6 incl. Quattro (AGE engine; left hand), 10/1997 to 5/2000, Euro 2 Engine code AGE

Engine management light with code P0420? What to check before replacing the catalytic converter

Cross references

BM90478 replaces these part numbers. Search any of them in the box at the top of the page to land here again.

OE (manufacturer) part numbers
4B0253057JX4B0253057LX4B0253057MX4B0253057NX4B025357LX8D0253057AV8D0253057EX8D0253057JX8D0253057TX8D02530588E0253095RV8E0253095RX
Klarius
380220
EEC
AU6003

Will this part fit my vehicle?

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Additional information

Weight 4.7 kg
Dimensions 1245 mm