Verified Fitment
| Brand | Model | Year | Variant / type code |
|---|---|---|---|
| BYD | 2nd-Gen Qin PLUS DM-i Smart Driving | 2024 | All versions |
| BYD | 2nd-Gen Qin PLUS DM-i Smart Driving | 2025 | All versions |
| BYD | Seal 05 DM-i | 2025 | All versions |
| BYD | Seal 05 DM-i | 2026 | All versions |
| BYD | Seal 05 DM-i Smart Driving | 2024 | All versions |
| BYD | Seal 05 DM-i Smart Driving | 2025 | All versions |
| BYD | Seal 05 DM-i Smart Driving | 2026 | All versions |
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.
EPS Motor & Controller for BYD Seal 05 DM-i, OE 18936866-00
Price shown without any local sales tax. Shipping is shown on this page and confirmed at checkout. Import taxes and duty in Hong Kong SAR are not included and may be charged when the parcel arrives.
About This Part
Electric power steering motor and controller assembly for the BYD Seal 05 DM-i, carrying OE 18936866-00 and part number HA5H-3414200. It fits the 2026 Seal 05 DM-i 2025-2026, the Seal 05 DM-i Smart Driving 2024-2026 and the 2nd-Gen Qin PLUS DM-i Smart Driving 2024-2025. The aluminium-cased EPS actuator combines the assist motor and control unit in one housing that bolts to the steering rack. This is a safety-critical steering part and calibration is required after fitting.
Technical Details
| Specification | Value |
|---|---|
| Condition | New |
| Quality line | Original/Genuine |
| Material | Metal |
| Mounting position | Underbody |
| Amount in delivery | 1 piece |
| Specification | Value |
|---|---|
| OE references | 18936866-00 · HA5H-3414200 |
| Approx. weight (packed) | Under 3.5 kg |
| Approx. packaging dimensions | 21 x 19 x 19 cm |
| Country of origin | China |
| Vehicle type | Passenger Car |
Packaging dimensions and weight are approximate and for orientation only. Shipping to Hong Kong SAR is shown above and confirmed at checkout.
Frequently Asked Questions: OE 18936866-00
What if the number on my old part does not match this one?
Do not fit this unit on the strength of the listing alone. Look for the number stamped on the motor and controller assembly you are removing and compare it with 18936866-00 or the alternative reference HA5H-3414200 given here. If neither matches what is stamped on your old part, hold off ordering. Getting this number right matters because it is the only reliable way to confirm this is the correct EPS motor and controller for your Seal 05 DM-i before it is fitted underbody.
Can I fit this myself or does it need a garage?
Yes, this is not one for the driveway. It is a steering component that sits at the underbody, so fitting it means working underneath the car, which calls for a garage rather than doing it yourself. Check the fitment table on this page first, to confirm this unit and its OE number, 18936866-00, match your BYD Seal 05 DM-i before booking it in for fitting.
What is the EPS motor and controller made of?
This unit is made of metal. It is new, from BYD as the genuine maker, and carries OE number 18936866-00, also shown as HA5H-3414200. Delivery takes 8 to 25 days from your order to your door. If you want the fit confirmed before ordering, use the quote route on this page rather than guessing from similar parts.
Where does this EPS motor and controller fit on my Seal 05 DM-i?
Before ordering, look at the part you have taken off the car and find its OE number stamped or printed on it. This one carries OE number 18936866-00, also shown as HA5H-3414200. If either number matches what is on your old unit, this is the correct replacement. If you cannot find a number, or it does not match, do not fit this part on the assumption it looks similar. Send a photograph of the old unit and its label through the quote route before you order.
Related Parts
How Ordering Works
Your order is packed and shipped tracked, and the import duty and VAT that apply to your destination are calculated at checkout. The final gallery image on this page is the process card showing each delivery step. Delivery to Hong Kong SAR: 8 to 25 days, depending on the option you choose at checkout. Shipping to Hong Kong SAR: from $16.30 (Economy), from $21.85 (Express), confirmed at checkout before you pay.