
Verified Fitment
| Brand | Model | Year | Variant / type code |
|---|---|---|---|
| BYD | S2 | 2019 | Comfort, Without Spare-Tyre Cover (2019) |
| BYD | S2 | 2020 | Comfort, Without Spare-Tyre Cover (2019) |
| BYD | S2 | 2021 | Comfort, Without Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2018 | Comfort, With Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2018 | Luxury Y, Without Spare-Tyre Cover |
| BYD | Yuan EV | 2019 | Comfort, With Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2019 | Luxury, With Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2019 | Premium Y With NFC |
| BYD | Yuan EV | 2020 | Comfort, With Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2020 | Luxury Y |
| BYD | Yuan EV | 2020 | Luxury Y With NFC |
| BYD | Yuan EV | 2020 | Luxury, With Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2020 | Premium Y With NFC |
| BYD | Yuan EV | 2021 | Comfort Y |
| BYD | Yuan EV | 2021 | Luxury Y |
| BYD | Yuan EV | 2021 | Luxury Y With NFC |
| BYD | Yuan EV | 2021 | Luxury, With Spare-Tyre Cover (2019) |
| BYD | Yuan EV | 2021 | Premium Y With NFC |
| 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 10 (Misty-Grey Interior 04) |
| BYD | Yuan Pro | 2023 | Type 20 (Misty-Grey Interior 04) |
| BYD | Yuan Pro | 2024 | Type 10 (Misty-Grey Interior 04) |
| BYD | Yuan Pro | 2024 | Type 20 (Misty-Grey Interior 04) |
28 vehicle versions. Scroll inside the box to see them all. 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.
Coolant Expansion Tank for BYD Yuan Pro, OE 11650984-00
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
Genuine BYD coolant expansion tank, OE 11650984-00 (reference SCEA-1311010), the reservoir that manages coolant volume and pressure as the system heats and cools. The translucent moulded bottle carries a screw pressure cap plus inlet and outlet spigots, and mounts in the engine bay of the 2023 Yuan Pro 2023-2024, the Yuan Pro 2018-2022, the Yuan EV 2018-2022, and the S2 2019-2021. Also called a coolant reservoir or coolant overflow tank, the translucent wall lets you check the level at a glance.
Technical Details
| Specification | Value |
|---|---|
| Condition | New |
| Quality line | Original/Genuine |
| Material | Plastic |
| Mounting position | Engine Bay |
| Amount in delivery | 1 piece |
| Specification | Value |
|---|---|
| OE references | 11650984-00 · SCEA-1311010 |
| Approx. weight (packed) | Under 1 kg |
| Approx. packaging dimensions | 29 x 27 x 18 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 11650984-00
My tank carries a different number. Does that change anything?
It may not. Check the sides and the underside of the one you are taking off for a moulded mark, and read it against both references. Where the tank has already been replaced once, the mark may relate to whatever was fitted last. Since this part goes through the quote route in any case, send us whatever you can read along with your vehicle details, and we will confirm the match before anything is arranged.
How soon will this coolant expansion tank turn up?
Delivery time is confirmed with your quote. Check the parcel over before you sign for it, and have the old tank next to you when it arrives so you can compare the two before fitting begins. That way any mismatch is caught before the car is off the road. The shipping cost is confirmed with your quote.
What is the tank made from?
Plastic, and it is supplied new. A moulded tank has to be carried by its own mountings and should not be pulled about by a hose that has hardened onto a spigot. The polymer is not stated, and no temperature or pressure rating is given for it, so nothing of that sort should be taken from this page.
Where does this tank sit on the car?
In the engine bay, on the cooling system side of things. Nothing here says which corner of the bay it occupies or what else has to come away first, so treat the photographs and the fitment table on this page as reference points and not as a fitting guide. Check that your BYD Yuan Pro appears in that table before you raise an enquiry. If you are not certain the tank in front of you is the same shape, include a photograph when you use the quote route.
Is there another version of this tank available?
Not from us. BYD is named as the genuine manufacturer and no aftermarket manufacturer is listed for this reference, so a single Original/Genuine tier stands on the page. That is what we have sourced, and we would sooner say so plainly than show a second tier with nothing behind it. Because this item is handled through the quote route, an enquiry quoting the OE number 11650984-00 will get you the position on availability as well as the arrangements for getting it to you.
Related Parts
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.





