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Catalytic Converter for Opel Astra G, Opel Astra H and 13 more models – BM91021H
BM91021H — Homologated Petrol Cat - Image 2

BM91021H Petrol Cat for Opel Astra G, Opel Astra H and 13 more models

£299.99 ex VAT (£359.99 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 15 vehicles (17 variants) — see the list or check yours before you buy.

Fitting kit included — no hidden extras (FK91021B)

Type Approved

2 years warranty

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

SKU: BM91021H Category: Manufactured by BM Catalysts

Fits these vehicles (15 vehicles, 17 variants)

  • Opel
  • Astra G 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 9/2000 to 9/2004, 4 Engine codes Z18XE, Z18XEL
  • Astra H 1.8 Petrol 16v (Z18XE engine) Maniverter, 1/2004 to 10/2006, Euro 4 Engine code Z18XE
  • Corsa C 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 9/2000 to 8/2006, Euro 4 Engine codes Z18XE, Z18XEL
  • Meriva A 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 4/2003 to 5/2010, Euro 4 Engine codes Z18XE, Z18XEL
  • Signum 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 10/2004 to 7/2005, Euro 4 Engine codes Z18XE, Z18XEL
  • Vectra B 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 9/2000 to 4/2002, Euro 4 Engine codes Z18XE, Z18XEL
  • Vectra C 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 4/2002 to 9/2008, Euro 4 Engine codes Z18XE, Z18XEL
  • Zafira A 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 9/2000 to 6/2005, Euro 4 Engine codes Z18XE, Z18XEL
  • Saab
  • 9-3 1.8 Petrol 16v (Z18XE; Z18XEL engines) Maniverter, 11/2003 to 9/2007, Euro 4 Engine codes Z18XE, Z18XEL
  • Vauxhall
  • Astra 1.8 Petrol Mk.4 16v (Z18XE; Z18XEL engines) Maniverter, 9/2000 to 9/2004, Euro 4 Engine codes Z18XE, Z18XEL

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

Cross references

BM91021H 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
1310657713106942555559485556095858490448503039158633915873395507207R1620102
Klarius
321702321984
Bosal
090-016099-653
Walker
20854
EEC
VX6023T

Will this part fit my vehicle?

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Additional information

Weight 7 kg
Dimensions 265 mm