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Transmission Speed Sensors: A Selection Guide

"Transmission speed sensor" names a job, not a part: the family's entries are separate references, so an order should name the position wording from your fault text alongside the number. Note on scope: the speed sensor family behind this site is catalogued by OE number for truck applications (29 entries, including Volvo 265007087, Scania 81271210058 / 211548 and Mercedes-Benz 526144 / 211221); this page is a selection guide for identifying which sensor you need, not a separate product line.

Step 1: Work out which sensor has failed

Start from the fault code's wording: send the full fault text with the truck model and gearbox type. The wording — for example "output shaft speed" versus "turbine/input speed" — names the position the code refers to, and that wording is recorded with the inquiry. Which codes a given gearbox logs is set out in the maker's service information.

Step 2: Identify the sensor physically

Record the connector pin count: the deep-checked samples in this family carry two-pole and four-pole connectors, and the count on your old sensor is part of its identification — if it differs from the count you expected, note it in the inquiry and it will be checked against the catalogue entry before quoting. If the number is unreadable, a photo of the removed sensor next to a ruler can support the inquiry.

Step 3: Confirm by OE number

With the position known, the OE number from the old sensor closes the identification. Send the number, the gearbox type and the truck model with your inquiry, and the match is confirmed against the catalogue application listing, which is organised by vehicle brand, model, engine, gearbox, axle and cabin. If the number is unreadable, the position, thread and connector details from Step 2 are the evidence the catalogue check is run against.

Order by OE number, not by guesswork

Name the position before the part: state the position wording from your fault text, since 'the transmission speed sensor' without a position does not identify an entry. Send the OE number of the probe you removed — 265007087, 81271210058 and 526144 are the catalogued examples — and say which shaft your fault text names. The confirmation is made against that number's catalogue entry; the deep-checked samples in this family carry two-pole and four-pole connectors, so if your old unit's pin count surprises you, record it in the inquiry and it will be checked rather than assumed. Vehicle model and gearbox type complete the evidence the quote is built on.

Fitment confirmation checklist

Include four details with your inquiry: the vehicle make and model, the engine type, the OE number from the old part, and the connector or mounting detail if it is unusual. For transmission speed sensor orders, the engine detail is especially useful, because the same truck model can leave the factory with different engine options and different sensor specifications. Where a catalogue entry lists applicable models, that listing is what the confirmation is based on — if your exact model is not shown, the reply will say so plainly rather than stretch the fitment. Distributors building a stock list can send a spreadsheet of OE numbers and receive a line-by-line matched or not-matched reply.

Packaging, stock and dispatch

With up to three different speed sensors possible on one gearbox, packaging on this page doubles as identification: whichever of the four options is chosen — OEMEMBER branded, UAP branded, blue neutral or white neutral — the stock should be kept physically separate and labelled by OE number. Availability is the catalogue's stated one: more than 100 items can be dispatched within 3 days, more than 2,700 within 15 days. Warranty terms are confirmed in the quotation before payment, and product certificates are available upon request. Keep the confirmed list from the first order and quote it back on any repeat order.