A TPMS sensor is a small part that causes a big share of returns in the sensor business — not because it fails, but because the wrong frequency or protocol only shows up when the tire shop tries to make the car recognise it. For importers and distributors, getting TPMS right comes down to three checks before you order: frequency, programming method and the OE number. This guide explains each one.
1. Frequency First: 315MHz or 433MHz
Most of the world runs on two radio frequencies. 315MHz is standard for North America (USA and Canada) and for some Japanese and Korean vehicles built for that market. 433MHz covers Europe and most other regions, including most of Asia, the Middle East and Latin America.
The trap: the same model — a Toyota Camry or a Ford F-150 — can use different frequencies and different protocols in different markets, so ordering “by model” is not enough. A newer exception is Tesla: recent Model 3 and Model Y use Bluetooth (BLE) TPMS sensors, which are not interchangeable with 315/433MHz sensors at all.
2. OE-Style or Universal Programmable?
OE-style (direct-fit) sensors come pre-programmed for a specific application. The shop installs them and runs the vehicle’s relearn procedure — no special programming tool needed. Universal programmable sensors are blank: one part number covers many vehicles, but each sensor must be programmed with a TPMS tool before or during installation.
For distributors, universal sensors cut inventory dramatically; for small tire shops without the tool, direct-fit is the safer sale. Decide which line your customers can actually support before you choose.
3. Programming and Relearn: Where Orders Go Wrong
A new sensor ID has to be introduced to the car. Depending on the vehicle this happens by an OBD relearn (writing the IDs through the diagnostic port), an automatic relearn after a period of driving, or a stationary procedure. An alternative is cloning: copying the old sensor’s ID into the new one, so the car notices no change — popular for seasonal wheel sets.
Problems start when a sensor’s protocol does not match the vehicle, even at the right frequency. That is why compatibility should always be confirmed against the OE number, not a “fits most models” claim.
4. Battery Life and Valve Types
TPMS sensors are sealed units with a non-replaceable battery. Typical service life is 5–7 years, so sensors are commonly replaced together with tires — a steady replacement-market demand for distributors.
Valves come in two main types: rubber snap-in stems (lower cost, used on most passenger cars) and metal clamp-in stems (specified on many OE applications and higher-load uses). When you order, confirm which valve type the application needs and whether new seal kits are included for installation.
5. What to Send for an Exact Match
To quote the correct sensor, we need three things: the OE number from the old sensor or a parts catalogue (this pins down frequency and protocol at once), the vehicle model, year and market (US, EU or other), and your quantity.
Our MOQ for sensors is 10 pcs. Samples are available, and the sample fee is refunded on your formal order; standard lead time is 15–25 days. You can browse our TPMS range, see a typical 315MHz TPMS sensor, or send your OE list through our RFQ form and we will match each number and reply within 24 hours.