Lexus GS300 Key Replacement Guide

Last updated: September 2026 · Verified against OEM part numbers

Compatible keys for Lexus GS300

Before you order

• Match the year range — Lexus 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 Lexus GS300 key?

The Lexus GS300 key operates on 433.92 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.

Which key fits my Lexus GS300?

The Lexus GS300 (2005-2007) uses the Board No. 0140 MDL B53EA 433.92MHz 4D Chip Smart Key for Lexus. Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Lexus GS300 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 Lexus GS300 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.

Related: All Lexus keys · All guides · Key Finder

More Lexus guides: RC F · ES · ES200 · ES300h