Rear Upper Control Arm (Left) for BYD Seal 06 DM-i, OE 12740279-00

This is the left hand arm, the rear upper arm on the left of the car, and left here means the left as you sit in the driver's seat facing forward, not as you stand looking at the front of the car. The right hand version is a separate item with its own OE number, so ordering from a picture alone is a risk. Decide which side you need first, check the OE number 12740279-00 against the arm you are taking off, then use the fitment table on this page to confirm the car.

Model name alone will not settle it. This arm fits a broad spread of BYD models, so the fitment table on this page is where the answer is. Match your model and model year exactly as written there, then the variant, and remember that you also need the left hand side rather than the right. If your car is close to an entry in the fitment table without matching it exactly, do not order on the strength of the resemblance. Send us the reference from the old arm through the quote route on this page and we will check it for you.

Both tiers are shown and priced on this page. The Original/Genuine option is the BYD part made to the vehicle manufacturer's own specification and carrying its reference. The Aftermarket option comes from an independent manufacturer building to the same application, and this record does not name which one. Neither tier changes the side or the position of the arm, so a left hand rear upper arm is what you get either way. Both are listed in New condition. If the source of the Aftermarket part matters for your job, ask through the quote route on this page first.

References for this arm come in two forms. The OE number is 12740279-00 and there is also a second reference, SC2E-2914110, for the same item. A part that has been on a car often shows the second of those rather than the first, so a mismatch at first glance is not necessarily a problem. Read the string in full, and check at the same time that you are looking at the left hand arm rather than its opposite number. If neither reference is legible, note what is left of the marking and send it with your car details through the quote route on this page.

This one is safety critical, so the honest answer is that it belongs in a workshop. It is an upper arm in the rear suspension, which means it helps locate the wheel and the car's geometry has to be reset once the arm has been changed. That calls for a lift, correct support and alignment equipment afterwards. No torque figures or fitting order are published here, because the vehicle manufacturer's own documentation covers those. Order against 12740279-00, tell the garage it is the left hand arm, and check the fitment table on this page beforehand.

The timing on this arm is shown in two parts. Delivery takes 8 to 25 days from your order to your door. It travels as a standard box, so it needs nothing special at the delivery end. If your booking cannot flex, ask through the quote route on this page before ordering. Keep the old arm on the car until the new one is in your hands, so the car stays usable while you wait.

This arm is made of metal. It is a load bearing part rather than a cover, and metal means the OE number tends to be marked into the arm itself where it can be read once the surface has been cleaned. We do not have a grade or coating specification beyond the material itself. Ask through the quote route on this page if a written specification is needed.