The Real Cost Difference: OEM vs Aftermarket for 星纪元ET
If you own a 星纪元ET, you already know it’s a premium Chinese SUV with advanced electronics. That includes a direct TPMS system that uses individual sensors in each wheel. When one fails (typically after 5–7 years due to battery depletion), you face a choice: pay the dealer $80–$120 per OEM sensor, or go aftermarket for $25–$45.
The price gap is real. But is the OEM sensor actually better, or are you paying for a brand name? Let’s break it down.
OEM TPMS Sensors: The Only Justified Cases
1. Vehicle Under Warranty
If your 星纪元ET is still within the manufacturer’s warranty period (typically 3 years or 60,000 km), installing a non-OEM sensor can technically void coverage for related TPMS issues. Dealers will use this as a reason to deny claims. In this scenario, pay the premium and keep your paperwork clean.
2. Advanced Diagnostics Required
Some 星纪元ET trims (particularly the high-end all-wheel-drive variants) use a TPMS system that integrates with the vehicle’s stability control and tire pressure monitoring ECU. OEM sensors transmit a unique ID that the ECU cross-references. While most aftermarket sensors can be programmed with the original ID, a very small number of early 2024 models had proprietary encryption. If you’re unsure, check your VIN with the dealer.
3. Personal Preference for “Genuine” Parts
Some owners simply want the part that came from the factory. That’s fine—but understand you’re paying for the label, not superior performance.
Why BH-Sens (Baolong Technology) is the Best Aftermarket Alternative
Baolong Technology is not a generic “white-box” manufacturer. They are an OE supplier for many Chinese automakers, including Chery (which owns Exeed, the brand behind 星纪元ET). The BL-ST-013 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Chery, Exeed, Hima | OE# 802000277AA, 802000589AA is a direct replacement that uses the same 433MHz frequency and clamp-in design as the factory sensor.
Specifications Comparison
| Feature | OEM 星纪元ET Sensor | BH-Sens BL-ST-013 |
|---|---|---|
| Frequency | 433MHz | 433MHz |
| OE Number | 802000277AA / 802000589AA | Matches both OE# |
| Mount Type | Clamp-in | Clamp-in |
| Pre-programmed? | Yes (from factory) | Yes (can be cloned or programmed) |
| Battery Life | 5–7 years | 5–7 years |
| Price Range | $80–$120 each | $25–$45 each |
| Warranty | 1–2 years (dealer) | 1 year (BH-Sens) |
The BH-Sens sensor is built with the same Murata or TI chipset found in many OE sensors. It’s pre-programmed to match the 星纪元ET’s communication protocol, meaning it will “wake up” when the vehicle starts and transmit pressure/temperature data correctly.
Fitment and Compatibility
The BL-ST-013 covers 17 vehicle applications across Chery, Exeed, and Hima models. For the 星纪元ET specifically, it fits all years and trims (2024–present) that use the 433MHz system. This includes the rear-wheel-drive base model and the dual-motor all-wheel-drive variant.
Installation tip: Because the sensor is pre-programmed, you can install it yourself if you have a tire machine. However, if your 星纪元ET requires sensor ID registration (some models do, some auto-learn), you’ll need a TPMS programming tool or a shop that has one. Most tire shops charge $20–$40 for registration—still cheaper than the OEM price difference.
Price/Value Analysis: When Aftermath Makes Sense
Let’s compare a full set replacement:
- OEM set (4 sensors): $320–$480
- BH-Sens set (4 sensors): $100–$180
That’s a savings of $140–$360. For that money, you could buy a high-quality tire inflator or pay for two tire rotations. The BH-Sens sensors have the same battery life and accuracy. The only risk? If your 星纪元ET has that rare encrypted ECU (unconfirmed as of 2025), the sensor might not register. In practice, well over 99% of 星纪元ET owners have no issues with BH-Sens.
Bottom Line
Buy OEM if:
- Your car is under warranty
- You want zero hassle with dealer diagnostics
- You prefer paying a premium for peace of mind
Buy BH-Sens BL-ST-013 if:
- Your warranty has expired
- You want the same function at half the cost
- You’re replacing a single dead sensor (mixing OEM and aftermarket works fine)
Recommended Part
For most 星纪元ET owners, the BL-ST-013 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Chery, Exeed, Hima | OE# 802000277AA, 802000589AA is the smart choice. It’s built by an OE-grade manufacturer, matches the factory frequency and fit, and saves you real money. If you have a 2024 model, double-check your VIN with our support team to confirm compatibility—but for 2025 and later, it’s a direct drop-in.
FAQ
Can I mix OEM and BH-Sens sensors on my 星纪元ET?
Yes. The BH-Sens sensor transmits the same 433MHz signal with the same data structure. As long as both sensors are programmed to the vehicle’s expected IDs (or the vehicle auto-learns new IDs), they will work together without issues.
Does the BH-Sens sensor need programming before installation?
The BL-ST-013 comes pre-programmed with standard 星纪元ET parameters. In most cases, you install it and the vehicle recognizes it automatically. Some models require a 10-minute drive at 25 km/h for auto-learning. If your car requires manual ID registration, use a TPMS tool like an Autel or Bartec.
How long does the BH-Sens sensor battery last compared to OEM?
Both use similar lithium batteries rated for 5–7 years of normal use. Actual life depends on driving frequency, temperature extremes, and how often the TPMS system polls the sensors. Expect 5–6 years in real-world conditions.
What if my 星纪元ET has a different TPMS frequency?
The 星纪元ET exclusively uses 433MHz for TPMS. If you see 315MHz or 434MHz (rare), you have a different vehicle. Confirm your model year and trim before purchasing—BL-ST-013 is for 433MHz systems only.