Verified Fitment
| Brand | Model | Year | Variant / type code |
|---|---|---|---|
| BYD | Bao 5 | 2023 | Type 30 R20 Power Side-Steps, Tow-Hook (Shoal-Green) |
| BYD | Bao 5 | 2024 | Type 30 R20 Power Side-Steps, Tow-Hook (Dark Interior Special) |
| BYD | Bao 5 | 2025 | Type 30 R20 Power Side-Steps, Tow-Hook (Dark Interior Special) |
| BYD | Bao 5 Player | 2024 | All versions |
| BYD | Bao 5 Player | 2025 | All versions |
| BYD | Bao 5 Smart Driving | 2024 | All versions |
| BYD | Bao 5 Smart Driving | 2025 | All versions |
| BYD | Bao 5 Smart Driving | 2026 | All versions |
| BYD | Bao 8 | 2024 | Type SQHC-10 R21A Wild-Wheat-Yellow |
| BYD | Bao 8 | 2024 | Type SQHC-20 With Tow-Hitch, With Off-Road Pack (Light-Sand-Grey) |
| BYD | Bao 8 | 2025 | Type SQHC-10 R21A Wild-Wheat-Yellow |
| BYD | Bao 8 | 2026 | All versions |
| BYD | Dolphin | 2021 | All versions |
| BYD | Dolphin | 2022 | All versions |
| BYD | Dolphin | 2023 | All versions |
| BYD | Dolphin | 2024 | All versions |
| BYD | Dolphin | 2025 | All versions |
| BYD | Song L DM-i Smart Driving | 2024 | All versions |
| BYD | Song L DM-i Smart Driving | 2025 | All versions |
19 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.
Low-Note Horn for Fangchengbao Bao 8 & Bao 5, OE 16746645-00
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
The low-note horn supplies the bass tone of the twin-horn set, listed under OE 16746645-00 and supplier code SFH-3721020-D1. This 12V snail-type unit bolts into the engine bay and covers the Fangchengbao Bao 8 (2024-2026), Bao 5 (2024-2026) and BYD Song L DM-i (2024-2025), plus more BYD group models. Its deep low-pitch note works alongside the high-note horn to reproduce the original acoustic signature. The moulded black housing and integrated bracket make this a plug-in replacement.
Technical Details
| Specification | Value |
|---|---|
| Condition | New |
| Quality line | Original/Genuine |
| Material | Metal |
| Colour | Black |
| Mounting position | Engine Bay |
| Amount in delivery | 1 piece |
| Specification | Value |
|---|---|
| OE references | 16746645-00 · SFH-3721020-D1 |
| Approx. weight (packed) | Under 1 kg |
| Approx. packaging dimensions | 19 x 17 x 12 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 16746645-00
The number on my old horn does not match 16746645-00, what now?
Check the model and the model year on your registration document rather than relying on the old number alone. That confirms whether this horn is listed for your exact vehicle. This one covers the Fangchengbao Bao 8 and Bao 5, and it is also listed under SFH-3721020-D1, so the mismatch may simply be a different reference for the same part. If your registration document details do not line up with this listing, hold off ordering and use the quote route on this page instead.
When will this low-note horn actually turn up?
Delivery time is confirmed with your quote. Once the parcel lands, compare the new horn against the one you removed before you fit it, so any mismatch shows up while the old part is still to hand. Use the quote route on this page if you would like a firm estimate for your address. The shipping cost is confirmed with your quote.
Where does this horn actually fit on the Bao 8 or Bao 5?
It sits in the engine bay, on the twelve volt electrical circuit alongside the switches, relays and fuses. Before you order, check the number stamped on the horn you are taking off against the OE number 16746645-00 given here, or against SFH-3721020-D1. This is a genuine BYD part, made in China, supplied new in black metal, and matching that stamped number is how you make sure the replacement lines up with what is already fitted in the bay.
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.