Guide · Opel

Opel Signum Key Replacement Guide

Last updated: August 2026 · Verified OEM part numbers

Quick answer: The Opel Signum (2005-2007) uses the EZRF G3-AM433TX 93187508 433MHz 7946 Chip HU43 3 Button Flip Remote Key for Opel Vectra Signum (SKU PCK-OP-2021) — verified against OEM part numbers. See the full compatibility table below.

Which Opel Signum key fits your vehicle?

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Compatible keys for Opel Signum

Years	Key
2005-2007	EZRF G3-AM433TX 93187508 433MHz 7946 Chip HU43 3 Button Flip Remote Key for Opel Vectra Signum SKU: PCK-OP-2021
2005-2007	EZRF G3-AM433TX 13189105 433MHz 7946 Chip HU43 2 Button Flip Remote Key for Opel Vectra Signum SKU: PCK-OP-2020
2005-2007	EZRF G3-AM433TX 93187508 433MHz 7946 Chip HU100 3 Button Flip Remote Key for Opel Vectra Signum SKU: PCK-OP-2019
2005-2007	EZRF G3-AM433TX 13189105 433MHz 7946 Chip HU100 2 Button Flip Remote Key for Opel Vectra Signum SKU: PCK-OP-2018

Before you order

Match the year range — Opel changed key systems across model years. Check your registration year.
Check your current key — the OEM number printed on your key matches the table above.
Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

Which key fits my Opel Signum?

The Opel Signum (2005-2007) uses the EZRF G3-AM433TX 93187508 433MHz 7946 Chip HU43 3 Button Flip Remote Key for Opel Vectra Signum (SKU PCK-OP-2021). Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Opel Signum keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a Opel Signum key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

Ready to order a Opel Signum key?