Knock Sensor for BYD Xia & Song Pro DM-i, OE 10509784-00

This sensor covers a large group of BYD models, so the honest answer is that the fitment table on this page has to decide it, not the title. Find your model and your build year in that table before you order. Bear in mind that two cars wearing the same badge can be built differently. If your variant is not shown, or you cannot tell which one you have, send OE 10509784-00 and a photograph of the old sensor and its label through the quote route and we will check it.

Check it against both of ours before you worry. This sensor answers to OE 10509784-00 and to the alternative reference 476ZQA-3611400, so a part marked with either one is the part described here. Get the old sensor clean and read it in good light, because a rubbed or oily character is easy to take for another. Should the number you have match neither, do not order on the strength of the shape. Pass the number to us through the quote route and we will trace it back for you.

Allow 8 to 25 days for delivery, counted from your order to your door. If a fixed workshop date is driving the purchase, tell us the date with OE 10509784-00 through the quote route and we will say what can be met. The shipping cost for your country is shown on this page and confirmed at checkout before you pay. Before you order, check the number on your old part against OE 10509784-00.

This sensor is mounted in the engine bay, which tells you the job is done from above with the bonnet raised rather than from underneath the car. That is as much as we can say, and we will not guess at the rest, because the precise seat differs between builds. Identify your vehicle in the fitment table on this page before you go further. If you want the location confirmed against your own car, send OE 10509784-00 and a photograph of the area through the quote route.

Because only the Original/Genuine line is supplied for this reference, made by BYD, and the price shown on this page is the price of that line. There is no Aftermarket option for OE 10509784-00, so the usual choice between two tiers does not arise on this page. It is a sourcing position rather than a view about which tier is better. Ask us through the quote route if you want an Aftermarket alternative looked for, and quote the OE number when you do.