Coolant Temperature Sensor for BYD Xia, OE 12849640-00

Check the fitment table on this page before anything else. This sensor fits a wide range of BYD models and versions, which is helpful in that your car is likely to be there, and risky in that a near miss reads convincingly. Match model, then version, then build period. After that, compare the number on the sensor you removed with 12849640-00 or 472QA-3611100. If the table does not show your version, put the details through the quote route on this page rather than guessing from the model name.

Yes. That marking is an alternative reference for this sensor, and 12849640-00 is the OE number we list it under. The number you can read on a small sensor is often the supplier one rather than the number printed in your handbook, so the two rarely look alike. Take the reading from the body of the old sensor and not from a box that may have held something else. Where neither reference matches what you find, send us what you can read through the quote route on this page.

Delivery time is confirmed with your quote. When the parcel arrives, check it over before you sign for it, and hold on to the old sensor so you can set the two side by side once the new one is out of the box. That comparison catches a mismatch before you are under the bonnet with tools out. If anything about the fit or the marking on the old sensor gives you doubt, run it past the quote route on this page first.

The material is Plastic and the condition is New. Nothing else about its construction is held, so nothing else is stated here. The practical use of that is comparison. The old sensor should be a plastic bodied unit of similar size. If what you removed is a large metal bodied part, you are probably on the wrong listing and the fitment table on this page is the place to look.

It sits in the engine bay, in the coolant circuit rather than in the cabin or under the floor. Identify the sensor you are replacing by its position on the car and by the number on its body before ordering, because a coolant circuit can carry more than one sensing point. The fitment table on this page ties the part to your model and version. Once you are sure, it can be ordered straight from this page.

This OE number carries the Original/Genuine line only, with BYD as the genuine manufacturer and no Aftermarket manufacturer against it. A page with both would show two tiers to pick from. This one has a single version, so there is no comparison for you to make. Should you want an alternative sourced, raise it on the quote route on this page with 12849640-00 or 472QA-3611100 and your vehicle details. That is the same route you would use to buy this one, given how it is classed for transport.