Brake Fluid Reservoir Bracket for BYD Qin PLUS EV, OE 12936903-00

Numbers on a bracket are often stamped rather than printed and can be hard to make out after a few years in the engine bay. This one is listed as OE number 12936903-00 and also known as HA2EL-3540040. Both refer to the same bracket. Wipe the old one down and check both faces, since the marking is not always on the side you see first. If the number you find is different again, do not treat that as a mismatch on its own. Send it to us with your vehicle details through the quote route and we will check it against the OE number.

This bracket is treated as safety critical because of what it holds. The brake fluid reservoir sits on it, so a fitting that is loose or misaligned is not a cosmetic problem. Our advice is to have it fitted by a qualified technician, and to have the braking system checked properly afterwards by whoever does the work. We do not publish torque figures or a fitting procedure for this part, so use the vehicle manufacturer's own instructions instead of working from what looks right on the bench.

There are two dates to think about with this bracket. The delivery time is 8 to 25 days, from order to door. 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 12936903-00. If anything about the timing matters for a booked repair, ask through the quote route on this page.

This bracket is made from metal. For a mounting bracket that matters in a straightforward way: it holds a shape under load and it can be corroded, so look at the condition of the seat and the fasteners it bolts to while the old one is off. Do not reuse a fastener that has been distorted. No coating detail or torque values are given for this bracket, so follow the vehicle manufacturer's figures instead of guessing, and keep the new bracket dry and unbent until it goes on.

This bracket mounts in the engine bay, which is useful to know before you start. Access is from above and not from under the car, and on a Qin PLUS EV the area is shared with high voltage components, so the vehicle should be made safe by someone who knows the correct procedure before anything is unbolted. What sits around it on your particular build is not covered here. Have a look at the reservoir and its lines in place first, and work out the order of removal before the first bolt comes out.

One version of this bracket is catalogued. The Original/Genuine listing carries the BYD name, and there is no Aftermarket line for OE number 12936903-00, so you will see a single tier on this page. For a part that carries the brake fluid reservoir, that is not a bad position to be in. If you are comparing quotes from elsewhere, compare the OE number instead of the description, because bracket shapes differ between builds and a description alone will not tell you whether two parts are the same.