Citroen C4 Cactus Key Replacement Guide
Last updated: September 2026 · Verified against OEM part numbers
Quick answer — Citroen C4 Cactus
The Citroen C4 Cactus (2018-2021 and other model years) uses the A3M05 smart key — 4A chip, 433 MHz (SKU PCK-CT-2008-HU) — verified against the original OEM part number. See every compatible option in the table below.
- OEM part number: A3M05
- Frequency: 433 MHz
- Chip / immobiliser: 4A
- Key type: Smart Key
- Years covered: 2018-2021 and other model years
- Wholesale: MOQ 5 units per SKU, models mixable in one order
Which Citroen C4 Cactus key fits your vehicle?
💬 Ask on WhatsAppCompatible keys for Citroen C4 Cactus
| Years | Photo | Key |
|---|---|---|
| 2018-2021 | | IM3A 433MHz A3M05 4A Chip HU83 3 Button (Light) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2008-HU |
| 2018-2021 | | IM3A 433MHz A3M05 4A Chip VA2 3 Button (Light) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2008-VA |
| 2018-2021 | | IM3A 433MHz A3M15 4A Chip HU83 3 Button (Light) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2006-HU |
| 2018-2021 | | IM3A 433MHz A3M05 4A Chip HU83 3 Button (Trunk) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2007-HU |
| 2018-2021 | | IM3A 433MHz A3M05 4A Chip VA2 3 Button (Trunk) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2007-VA |
| 2018-2021 | | IM3A 433MHz A3M15 4A Chip HU83 3 Button (Trunk) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2005-HU |
| 2016-2019 | — | 98167108ZD 433MHz 4A Chip 2 Button Smart Key for Citroen Peugeot SKU: NLK-CIT-15-433 |
| 2018-2021 | | IM3A 433MHz A3M15 4A Chip VA2 3 Button (Trunk) Smart Key with OEM Board for Citroen C3 C4 SKU: PCK-CT-2005-VA |
| 2016-2019 | | 98097814ZD / 98097833ZD 433MHz 4A Chip Smart Key (Light Button) with OEM Board for Citroen SKU: 原厂板 4A-Citroen-灯 智能卡 |
| 2016-2019 | | 98097814ZD / 98097833ZD 433MHz 4A Chip Smart Key (Trunk Button) with OEM Board for Citroen SKU: PCK-CT-2009 |
Before you order
- Match the year range — Citroen 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
What frequency is the Citroen C4 Cactus key?
The Citroen C4 Cactus key operates on 433 MHz. Frequency is fixed in the key hardware and cannot be reprogrammed — a key bought on the wrong frequency will not lock, unlock or start the car.
What chip does the Citroen C4 Cactus key use?
The Citroen C4 Cactus uses a 4A chip. Tell your supplier the chip type when ordering so you receive the correct blank — an ID46 blank will not replace an ID47 or 4D83 key.
Which key fits my Citroen C4 Cactus?
The Citroen C4 Cactus (2018-2021) uses the IM3A 433MHz A3M05 4A Chip HU83 3 Button (Light) Smart Key with OEM Board for Citroen C3 C4 (SKU PCK-CT-2008-HU). Check the table above for all compatible options, verified against OEM part numbers.
Do you supply Citroen C4 Cactus 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.
Ready to order a Citroen C4 Cactus key?
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More Citroen guides: C3 · C2 · Berlingo + · C-Elysee