Verified Fitment
| Brand | Model | Year | Variant / type code |
|---|---|---|---|
| BYD | Yuan EV | 2018 | All versions |
| BYD | Yuan EV | 2019 | All versions |
| BYD | Yuan EV | 2020 | Luxury Y |
| BYD | Yuan EV | 2021 | Luxury Y |
| BYD | Yuan EV | 2022 | Luxury Y |
| BYD | Yuan Pro | 2018 | All versions |
| BYD | Yuan Pro | 2019 | All versions |
| BYD | Yuan Pro | 2020 | All versions |
| BYD | Yuan Pro | 2021 | All versions |
| BYD | Yuan Pro | 2022 | All versions |
| BYD | Yuan Pro | 2023 | Type 20 (Misty-Grey Interior 04) |
| BYD | Yuan Pro | 2024 | Type 20 (Misty-Grey Interior 04) |
Type codes are printed on the vehicle identification plate. Not sure? Send us the number from the old part over WhatsApp and we confirm it against the factory catalogue before you order.
Battery Pack Rear Air Deflector for BYD Yuan Pro, OE 13166091-00
Price shown without any local sales tax. Shipping is calculated at checkout. Import taxes and duty in Hong Kong SAR are not included and may be charged when the parcel arrives.
About This Part
Rear air deflector for the battery pack, shaping underbody airflow around the traction battery on the BYD Yuan Pro (2018-2024) and Yuan EV (2018-2022). This moulded black panel carries OE 13166091-00 and reference SCEG-3102820, with a bolt flange along the top edge and three raised pockets that clear the pack mounts. Fitted under the floor, the deflector (also called an air guide or underbody baffle) steers cooling air and shields the pack from spray.
Technical Details
| Specification | Value |
|---|---|
| Condition | New |
| Quality line | Original/Genuine |
| Material | Plastic |
| Colour | Black |
| Mounting position | Underbody, Rear |
| Amount in delivery | 1 piece |
| Specification | Value |
|---|---|
| OE references | 13166091-00 · SCEG-3102820 |
| Approx. weight (packed) | Under 4.5 kg |
| Approx. packaging dimensions | 110 x 36 x 24 cm |
| Country of origin | China |
| Vehicle type | Passenger Car |
Packaging dimensions and weight are approximate and for orientation only. Delivery to Hong Kong SAR is quoted with the part.
Frequently Asked Questions: OE 13166091-00
The number on my old part does not match 13166091-00, what now?
Check the model and the model year exactly as written on your registration document before you order. That is the detail that decides fitment here, not the number stamped on the old part, which can be worn, partial or replaced by a previous repairer. If the model and year on your document match this listing, order with confidence. Delivery time is confirmed with your quote.
When will this part arrive after I order it?
Delivery time is confirmed with your quote. When it arrives, check the parcel is undamaged before you sign for it, since a knocked or split box is easier to query at the door than once it has been carried inside and opened. If you have any doubt about timing once you have ordered, use the quote route on this page and someone can confirm where things stand for your particular order.
How is a part this size delivered?
This deflector arrives as a large box rather than a small parcel. The packaging details are shown on this page. Delivery time is confirmed with your quote. Take a look at the photographs on this page so you know the shape to expect when it is delivered, rather than picturing something smaller than the panel actually is.
What is this deflector made of and does that matter for fitting?
It is made from black plastic, fitted to the rear underbody of the Yuan Pro. Before you order, look underneath your own car at the rear battery pack and note the side it sits on, the position against the surrounding panels and the fixings holding the original in place. Match these against what you find here and against the OE number 13166091-00 on the old part. If the shape, position or fixings do not line up, hold off ordering until you have checked further.
Will this deflector need painting to match the car?
No colour is listed beyond the black plastic it is moulded in, and nothing here says a paint match is needed, since it sits under the car out of sight. If you want confirmation before ordering, or need to check it against a part you have already had refinished, use the quote route on this page and describe what you are trying to match. That way you get an answer specific to your Yuan Pro rather than a guess.
Where on the car does this fit?
This deflector sits at the rear of the car, fitted to the underbody beneath the battery pack, out of sight rather than anywhere visible from outside. It belongs with the mud flaps and arch trim fitted low down on the car rather than with painted body panels. If you have come across this part listed under a different reference, check SCEG-3102820, which this same part is also listed under, to confirm you are looking at the right one before you go any further with the order.
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How Ordering Works
Send the OE number and your address using the button above and we come back, within 24 hours and usually sooner, with one delivered price to Hong Kong SAR: the part, carriage on a route that takes it, and the import duty and VAT that apply where you are. Nothing is charged until you accept the quote.