Buying Guides
How to Read a Toyota Part Number: The 10-Digit Code Explained
Arlington Parts Desk · 2026-03-14 · 6 min read
A Toyota part number is typically ten digits split into three groups, for example 04465-0K290. The first five digits identify the part type and assembly, the next two digits identify the model or platform, and the last three identify the specific variant. The number on the box must always match the number on the part itself.
The structure
Take 04465-0K290, the front brake pad set for a Hilux. Reading left to right, the numbering tells you what the part is, which model family it belongs to, and which specific version it is. Sub-numbers, suffixes and country codes appear in Toyota's full catalogue format as well, which is why the same physical part can appear with slightly different numbers between markets.
- 04465 — the function group: brake pads, front, disc brake.
- 0K — the model or platform identifier: Hilux and related platforms.
- 290 — the specific variant within that group.
- 90915-YZZE1 — a service-part class of number, where the last characters identify the application family rather than a model platform.
Why the same part has different numbers
Vehicles built for different markets — Japan, Thailand, South Africa, Europe — carry different part numbers for what looks like an identical component. A Hilux assembled for one market can use a slightly different pad compound or a different rotor thickness from the same model name sold elsewhere. This is why the model name and year alone is not enough, and why chassis-number identification is the standard we work to.
Using numbers to spot the wrong part at the counter
- The number on the box must match the number on the part.
- Check the number appears in the Toyota catalogue for your chassis, not just for your model name.
- On genuine parts, look for the Toyota cast mark or printed mark, and a friction or material code where the part type has one.
- If a seller offers you a part 'because it fits the same model', ask for the number and confirm it. Similar is not the same.
Where Arlington fits in
We look parts up by chassis number, tell you the number before you pay, and print it on your invoice. If you need a number for a vehicle you are not sure about, send the chassis or VIN number on WhatsApp 08172081986 and we will come back with the part number, price and the location holding stock.
FAQs
How many digits are in a Toyota part number?
The commonly quoted format is ten digits, usually written as five digits, a hyphen, then five more, for example 04465-0K290. Some service parts such as filters and fluids use 90915-YZZE1-style numbers with letters.
Can I order by part number without giving my chassis number?
Yes, and we will supply exactly the number you give us. But if you are unsure which number is right, the chassis number is the reliable way to confirm it and it takes us a minute.
Why does the same brake pad have two different numbers?
Different model generations, markets and vehicle variants often use different pad compounds or dimensions even where the model name matches. The part number reflects the specific assembly the vehicle was built with.