Opel Petrol

GM21

Opel petrol catalytic converter · Opel Vectra B, Opel Vectra

Metallic catalytic converter. Fitted to Opel Vectra B & Opel Vectra.

We buy the GM21 Opel catalytic converter in various conditions, even with a damaged casing. Prices track live precious-metal markets, so send us a photo or WhatsApp the code for today’s price.

Converter details

Primary code
GM21
Make
Opel (OEM)
Fuel
Petrol

Vehicles & engines fitted

VehicleYearsEngineEngine code
Opel Vectra B – 2.5 V6 –
Opel Vectra 2000 2.5 –

Same as / cross-references

These codes share a catalyst or housing number with GM21, so they are the same or an equivalent unit.

  • 90502549
  • 80793K3
  • 90529024
  • 90502548

Questions about GM21

How much is a GM21 catalytic converter worth?

Prices for GM21 follow live platinum, palladium and rhodium markets and depend on the condition of the unit. Send us a photo of the converter and its code and we will reply with today’s price.

Where is the code on a Opel catalytic converter?

Look for the stamped or engraved code on the converter shell or heat shield. Photograph every code you can see so we can match it exactly.

Do you collect GM21 converters?

Yes. We collect across England & Wales, or you can drop off. Payment is usually by bank transfer.

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