The electric vehicle industry rarely stands still, and Nio is no exception. With the automaker rolling out fresh models under its main brand and the more accessible Onvo sub-brand, aftermarket parts suppliers are scrambling to keep up. For shops and fleet managers servicing these vehicles, one component has become a recurring headache: the tire pressure monitoring system (TPMS) sensor. Fortunately, the aftermarket is catching up—and the BL-ST-051 from BH-Sens is a prime example of how far we’ve come.
Nio’s vehicles have always used a 433MHz TPMS platform, but the specific OE part numbers have shifted across model years and variants. The P0242518, P0302230, and P0385734 are the three part numbers that cover the lion’s share of Nio and Onvo models from roughly 2020 onward. The catch? Distributors and repair shops have often struggled to find a single sensor that works across all three numbers without reprogramming or using a dedicated scan tool. That’s where the BL-ST-051 changes the game.
A Pre-Programmed Solution That Actually Fits
The BL-ST-051 is a clamp-in, pre-programmed TPMS sensor manufactured by BH-Sens (part of Baolong Technology, a major OE supplier out of China). Unlike universal sensors that require manual programming or a relearn procedure at installation, this unit ships ready to install on six specific Nio and Onvo applications. The pre-programmed frequency is 433MHz, matching the native signal of the factory receivers.
Why does this matter for fitment? Because compatibility isn’t just about physical shape—it’s about the digital handshake between sensor and vehicle. A sensor that transmits at 434MHz or uses a different data protocol will either fail to register or trigger a persistent warning light. The BL-ST-051 solves that by matching the exact OE spec, so plug-and-play becomes a reality for the most common Nio models.
How to Verify Fitment Before You Buy
Before you add a dozen of these to your cart, you need to confirm the sensor will work on the specific vehicle in front of you. Here’s the short process:
- Check the model year. Nio ES6, ES8, EC6, ET7, and ET5 models from 2021 to 2025 are the primary targets. Onvo models (the sub-brand for ex-Nio owners) are also covered, but only the early 2024–2025 builds have been validated. Always cross-reference the production date.
- Look at the OE part number on the existing sensor. If it reads P0242518, P0302230, or P0385734, the BL-ST-051 is a direct match. If it’s another number (e.g., P0456789), you’ll need to verify with a parts lookup tool or contact the supplier.
- Check the valve type. The BL-ST-051 is clamp-in (metal stem with a nut). If the existing sensor is snap-in (rubber stem), the wheel may require a different seal. Most Nio factory wheels use clamp-in, but aftermarket rims can vary.
- Confirm the frequency. 433MHz is the standard for Nio and Onvo, but some early pre-production prototypes used 315MHz. Those are rare, but double-check if the vehicle is a 2019 or earlier model.
Key Specs at a Glance
| Specification | Detail |
|---|---|
| Brand | BH-Sens (Baolong Technology) |
| Frequency | 433MHz |
| OE Numbers | P0242518, P0302230, P0385734 |
| Type | Clamp-in, pre-programmed |
| Compatible Brands | Nio, Onvo |
| Vehicle Applications | 6 specific models (see below) |
| Relearn Required? | Yes—but no programming needed; only a standard relearn using a tool or drive cycle |
The six validated applications include the Nio ES6 (2021–2024), ES8 (2022–2025), EC6 (2022–2024), ET7 (2022–2024), ET5 (2023–2025), and the Onvo OV6 (2024–2025). BH-Sens has stated they are actively testing newer 2026 models, but at the time of writing, those are not yet confirmed.
The Market Outlook for Nio TPMS
As Nio expands into Europe and Southeast Asia, the demand for reliable aftermarket TPMS will only grow. Many independent shops still buy from dealerships at premium prices, not realizing that the BL-ST-051 offers the same performance at a fraction of the cost—and without the long lead times. Fleet operators, in particular, are starting to standardize on this sensor because it reduces inventory complexity. Instead of stocking three separate sensor SKUs for the three OE numbers, they keep a single SKU that covers all three.
A word of caution: the BL-ST-051 is pre-programmed but still requires a relearn procedure after installation. That’s normal for any TPMS sensor that isn’t a direct OEM replacement. The relearn can be done with a low-cost TPMS tool or even a simple magnet-based reset procedure on some Nio models. Always check the vehicle’s service manual for the specific relearn method.
For buyers, the takeaway is clear. If you’re servicing Nio or Onvo vehicles from 2021 onward, the BL-ST-051 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Nio, Onvo | OE# P0242518, P0302230, P0385734 is the most versatile aftermarket option currently available. It matches three key OE part numbers, covers six models, and eliminates the guesswork of programming. Just verify the model year and valve type before clicking “buy,” and you’ll avoid the most common fitment pitfalls.
When you’re ready to restock, consider adding a handful of BL-ST-051 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Nio, Onvo | OE# P0242518, P0302230, P0385734 units to your inventory. It’s the sensor that finally makes Nio TPMS servicing straightforward for the independent shop.
