Verified Fitment
| Brand | Model | Year | Variant / type code |
|---|---|---|---|
| BYD | D1 | 2020 | Elite Y (Optional 3-in-1) |
| BYD | D1 | 2021 | Elite Y (Optional 3-in-1) |
| BYD | D1 | 2022 | Elite Y (Optional 3-in-1) |
| BYD | D1 | 2023 | Elite Y (Optional 3-in-1) |
| BYD | D1 | 2024 | Elite Y (Optional 3-in-1) |
| BYD | Han EV | 2021 | All versions |
| BYD | New e6 | 2022 | Premium-Enjoy Y |
| BYD | New e6 | 2022 | Type 10 Y |
| BYD | New e6 | 2023 | Type 10 Y |
| BYD | Yuan PLUS Champion | 2021 | Type SC2E-30 |
| BYD | Yuan PLUS Champion | 2021 | Type SC2ET-20 |
| BYD | Yuan PLUS Champion | 2021 | Type SC2EU-40 |
| BYD | Yuan PLUS Champion | 2022 | Type SC2E-10 |
| BYD | Yuan PLUS Champion | 2022 | Type SC2E-30 |
| BYD | Yuan PLUS Champion | 2022 | Type SC2EU-40 |
| BYD | Yuan PLUS Champion | 2023 | Type SC2E-10 |
| BYD | Yuan PLUS Champion | 2023 | Type SC2E-30 |
| BYD | Yuan PLUS Champion | 2023 | Type SC2ET-20 |
| BYD | Yuan PLUS Champion | 2023 | Type SC2EU-40 |
| BYD | e2 | 2019 | Comfort (10-inch, Screen) |
| BYD | e2 | 2019 | Elite (Ride-Hailing, Ventilated & Heated Seats) |
| BYD | e2 | 2019 | Luxury (10-inch, Screen) |
| BYD | e2 | 2020 | Comfort (10-inch, Screen) |
| BYD | e2 | 2020 | Comfort Y Optional Black-White, Two-Tone Kit, 10-inch, Screen |
| BYD | e2 | 2020 | Elite (Ride-Hailing, Ventilated & Heated Seats) |
| BYD | e2 | 2020 | Elite (Taxi, Mechanical Sensor) |
| BYD | e2 | 2020 | Elite Y Ride-Hailing 2020 |
| BYD | e2 | 2020 | Luxury (10-inch, Screen) |
| BYD | e2 | 2020 | Luxury Y Optional Black-White, Two-Tone Kit 2020 |
| BYD | e2 | 2020 | Luxury Y2020 |
| BYD | e2 | 2020 | Standard Y (Corporate Edition) |
| BYD | e2 | 2021 | Comfort Y Optional Black-White, Two-Tone Kit, 10-inch, Screen |
| BYD | e2 | 2021 | Elite (Taxi, Mechanical Sensor) |
| BYD | e2 | 2021 | Elite Y Ride-Hailing 2020 |
| BYD | e2 | 2021 | Luxury Y Optional Black-White, Two-Tone Kit 2020 |
| BYD | e2 | 2021 | Luxury Y2020 |
| BYD | e2 | 2021 | Standard Y2020 |
| BYD | e2 | 2022 | Elite Y Ride-Hailing 2020 |
| BYD | e2 | 2022 | Luxury Y |
| BYD | e2 | 2022 | Luxury Y2020 |
| BYD | e2 | 2022 | Standard Y2020 |
| BYD | e2 | 2023 | Luxury Y |
| BYD | e2 | 2024 | Luxury Y |
| BYD | e2 | 2025 | Luxury Y |
| BYD | e3 | 2019 | Comfort |
| BYD | e3 | 2019 | Elite (Ride-Hailing, Ventilated & Heated Seats) |
| BYD | e3 | 2019 | Luxury (10-inch, Screen) |
| BYD | e3 | 2020 | Comfort |
| BYD | e3 | 2020 | Elite (Ride-Hailing, Ventilated & Heated Seats) |
| BYD | e3 | 2020 | Elite (Taxi) |
| BYD | e3 | 2020 | Elite Y Ride-Hailing 2020 |
| BYD | e3 | 2020 | Luxury (10-inch, Screen) |
| BYD | e3 | 2020 | Luxury Y Optional 10 -Inch, Screen |
| BYD | e3 | 2020 | Premium Y2020 |
| BYD | e3 | 2021 | Comfort |
| BYD | e3 | 2021 | Elite (Taxi) |
| BYD | e3 | 2021 | Elite Y |
| BYD | e3 | 2021 | Elite Y Ride-Hailing 2020 |
| BYD | e3 | 2021 | Luxury Y |
| BYD | e3 | 2021 | Luxury Y Optional 10 -Inch, Screen |
| BYD | e3 | 2021 | Premium Y2020 |
| BYD | e3 | 2022 | Elite Y |
| BYD | e3 | 2022 | Elite Y Ride-Hailing 2020 |
| BYD | e3 | 2022 | Luxury Y |
| BYD | e3 | 2023 | Elite Y |
| BYD | e3 | 2023 | Elite Y Ride-Hailing 2020 |
| BYD | e3 | 2023 | Luxury Y |
| BYD | e3 | 2023 | Luxury Y Optional Fixed Gear-Position |
| BYD | e3 | 2023 | Type 10 ELELD (200km) |
| BYD | e3 | 2023 | Type 20 |
| BYD | e3 | 2024 | Elite Y |
| BYD | e3 | 2024 | Elite Y Ride-Hailing 2020 |
| BYD | e3 | 2024 | Luxury Y |
| BYD | e3 | 2024 | Luxury Y Optional Fixed Gear-Position |
| BYD | e3 | 2024 | Type 10 ELELD (200km) |
| BYD | e3 | 2024 | Type 20 ELEKD (200km) |
| BYD | e3 | 2025 | Elite Y |
| BYD | e3 | 2025 | Elite Y Ride-Hailing 2020 |
| BYD | e3 | 2025 | Luxury Y |
| BYD | e3 | 2025 | Luxury Y Optional Fixed Gear-Position |
| BYD | e3 | 2025 | Type 10 ELELD (200km) |
| BYD | e3 | 2025 | Type 20 ELEKD (200km) |
| BYD | e3 | 2026 | All versions |
83 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 e3 & e2, OE 12598290-00
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
Coolant expansion tank assembly (OE 12598290-00, reference EL-1311010) that holds reserve coolant and absorbs pressure changes in the cooling circuit. The translucent moulded bottle carries a 30 kPa pressure cap and top mounting tabs, letting you check level at a glance. It fits the BYD e3 2019-2026, e2 2019-2025, D1 2020-2024 and more. Also called a coolant reservoir or overflow tank, this expansion bottle replaces a cracked or discoloured original in the engine bay.
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 | 12598290-00 · EL-1311010 |
| Approx. weight (packed) | Under 1 kg |
| Approx. packaging dimensions | 25 x 23 x 20 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 12598290-00
The number on my old tank is different. Same part?
It can be the same one. On a moulded tank the reference is often cast into the body near a seam, so look there with the surface clean and dry. If what you find matches neither of the two shown here, send it to us with your model and build year through the quote route. We will check it against this line before anything is quoted, which is worth doing on an inquiry item.
When will this coolant expansion tank arrive?
Delivery time is confirmed with your quote. Once it is out of the box, hold it up against the old tank you removed and check it looks like a straight swap before you fit it. If anything about the parcel or the part does not look right, tell us through the quote route on this page before you go any further.
What is it made from?
It is made of plastic. The cap and hoses on your car are separate items and are not part of this line unless the images on this page show otherwise. When you send your inquiry through the quote route, say whether you need those as well, and give your model and build year so the right versions are checked. Buying the tank alone and then finding a fitting missing is the usual cause of a second delay.
Where does it sit?
The mounting position for this tank is the engine bay, so it sits in that compartment rather than under the vehicle or inside the cabin. This is named Coolant Expansion Tank I, so where a car carries more than one tank in that area, note which position yours is before you inquire. Give us that position along with your model and build year through the quote route and we will confirm the match, since this item is quoted rather than bought straight from the page.
Why is only one version offered?
Only the Original/Genuine tier is listed, from BYD. Nothing in the Aftermarket tier has been matched to this OE number, so there is one version to consider. Since the item is quoted rather than added to a basket, the figure reaches you with the quotation, alongside the transport arrangement for your address. If you would like us to look for an Aftermarket alternative at the same time, say so in your inquiry and include OE number 12598290-00 with your model and build year.
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.