Mazda M3 6 Key Replacement Guide

Last updated: September 2026 · Verified against OEM part numbers

Compatible keys for Mazda M3 6

Before you order

• Match the year range — Mazda 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 Mazda M3 6 key?

The Mazda M3 6 key operates on 315 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 Mazda M3 6 key use?

The Mazda M3 6 uses a 4D63 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 Mazda M3 6?

The Mazda M3 6 (2000, 2010) uses the SKE216-01 315MHz 4D63 Chip 2 Button Flip Remote Key for Mazda M3 M6. Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Mazda M3 6 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.

Related: All Mazda keys · All guides · Key Finder

More Mazda guides: M3 · CX-30 · CX-5 · BT-50