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Catalytic Converter for Audi A3, SEAT Altea and 9 more models – BM91391H
BM91391H — Homologated Petrol Cat - Image 2

BM91391H Petrol Cat for Audi A3, SEAT Altea and 9 more models

£134.99 ex VAT (£161.99 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 11 vehicles — see the list or check yours before you buy.

Fitting kit included — no hidden extras (FK91391C)

Type Approved

2 years warranty

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

SKU: BM91391H Category: Manufactured by BM Catalysts

Fits these vehicles (11)

  • Audi
  • A3 1.6 Petrol Mk.2 8v (BGU; BSE; BSF engine), 9/2003 to 9/2011, 4 Engine code BSF
  • SEAT
  • Altea XL 1.6 Petrol 8v (BSE; BSF engine), 10/2006 to 12/2009, Euro 4 Engine code BSF
  • Altea 1.6 Petrol 8v (BGU; BSE; BSF engine), 3/2004 to 3/2010, Euro 4 Engine code BSF
  • Leon 1.6 Petrol 8v (BSE; BSF engine), 7/2005 to 12/2010, Euro 4 Engine code BSF
  • Toledo 1.6 Petrol 8v (BGU; BSE; BSF engine), 10/2004 to 5/2009, Euro 4 Engine code BSF
  • Skoda
  • Octavia 1.6 Petrol 8v (BGU; BSE; BSF engine), 6/2004 to 10/2008, Euro 4 Engine code BSF
  • Volkswagen
  • Caddy 1.6 Petrol 8v (BGU; BSE; BSF engines), 4/2004 to 4/2007, Euro 4 Engine codes BGU, BSE, BSF
  • Golf Plus 1.6 Petrol 8v (BSE; BSF engines), 5/2005 to 12/2008, Euro 4 Engine codes BSE, BSF
  • Golf 1.6 Petrol Mk.5 8v (BGU; BSE; BSF engines), 1/2004 to 7/2009, Euro 4 Engine codes BGU, BSE, BSF
  • Jetta 1.6 Petrol 8v (BGU; BSE; BSF engines), 10/2005 to 12/2008, Euro 4 Engine codes BGU, BSE, BSF

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

Cross references

BM91391H 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
1K0254500BX1K0254500NX1K0254503MX1K0254505RX1K0254505SX1K0254507GX1K0254508SX1K0254508TX1K0254509KX1K0254510GX1K0254510HX1K0254510JX1K0254510NX1K0254510QX1K0254510RX
Klarius
321800322611
Bosal
090-037
Walker
20851
EEC
VK6088T

Will this part fit my vehicle?

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Additional information

Weight 5.6 kg
Dimensions 1140 mm