fits model: Yfz450r, Yfz450x. make: Yamaha. year: 2009–2020.

( Brand: Celox ), ( Manufacturer Part Number: VR1104RR131HS ), ( Type: Regulator ), ( Warranty: 90 Day ), ( Country Of Origin: China ), ( California Prop 65 Warning: Proposition 65 Warning For California Consumers. )
The **Celox VR1104RR131HS Regulator Rectifier** is a high-performance, direct-replacement alternator component meticulously engineered to restore peak electrical functionality to Yamaha s **YFZ450R and YFZ450X models** produced between **2009 and 2020**. Designed with precision and built to exacting standards, this regulator-rectifier assembly eliminates common issues such as voltage fluctuations, weak charging, or premature battery drain that plague aging or failing stock units. Crafted from high-grade, corrosion-resistant materials, the VR1104RR131HS ensures reliable voltage regulation typically maintaining a stable **13.8 14.5V output** to sustain optimal battery health, ignition performance, and overall electrical system efficiency. Its robust construction incorporates a **sealed, high-temperature-resistant housing** and **premium-grade diodes**, reducing the risk of overheating and extending the lifespan of both the regulator and the alternator itself. Whether addressing symptoms like dim headlights, intermittent electrical failures, or a sluggish starter motor, this aftermarket upgrade provides a seamless, factory-matched solution without compromising on durability or performance. Ideal for riders seeking a cost-effective yet high-quality alternative to OEM parts, the Celox VR1104RR131HS is a trusted choice for restoring electrical reliability to Yamaha s legendary dual-sport and adventure bikes, ensuring consistent power delivery for both on-road and off-road adventures.
### **Pros and Cons of buying a Celox VR1104RR131HS Regulator-Rectifier for Yamaha YFZ450R/YFZ450X (2009 2020)**
#### **Pros:**1. **Direct OEM Replacement** The Celox VR1104RR131HS is a direct-fit replacement for the stock Yamaha regulator-rectifier in the 2009 2020 YFZ450R/YFZ450X models. This means no modifications are required, and it integrates seamlessly with the bike s electrical system.
2. **High-Quality Components** Celox is a reputable brand known for manufacturing reliable electrical components, including regulator-rectifiers. Their products are designed to handle the electrical demands of modern motorcycles without overheating or failing prematurely.
3. **Improved Voltage Regulation** Unlike some aftermarket alternatives, this unit provides precise voltage regulation, preventing issues like battery overcharging or undercharging. This helps extend the lifespan of your battery and alternator.
4. **Durability and Reliability** The VR1104RR131HS is built to withstand the rigors of off-road use, including vibrations and exposure to dust and moisture. It is often used in racing and heavy-duty applications, suggesting it is robust enough for daily riding.
5. **Widely Available and Affordable** Compared to OEM Yamaha parts, this Celox unit is typically more cost-effective while maintaining high performance. It is also easy to find through online retailers, motorcycle parts stores, and aftermarket suppliers.
6. **Compatibility with Aftermarket Mods** If you plan to add accessories like LED lighting, aftermarket gauges, or other electrical modifications, this regulator-rectifier can handle the increased load without causing voltage spikes or drops.
7. **Warranty and Support** Celox offers warranties on their products, and many sellers provide additional return or replacement policies, giving you peace of mind in case of defects.
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#### **Cons:**1. **Potential Overkill for Stock Setups** If you ride your YFZ450R/YFZ450X primarily on-road with minimal electrical modifications, the stock Yamaha regulator-rectifier may suffice. Upgrading to a Celox unit might not provide noticeable benefits unless you encounter electrical issues or plan significant mods.
2. **Higher Initial Cost Than Basic Alternatives** While still affordable, the Celox VR1104RR131HS is more expensive than some generic or no-name regulator-rectifiers. If you're on a tight budget, you might consider cheaper options, though quality may vary significantly.
3. **Installation Requires Basic Electrical Knowledge** Replacing the regulator-rectifier involves disconnecting the battery, removing the old unit, and properly connecting the new one. While the process is straightforward, mistakes in wiring (e.g., reversing polarity) can damage the bike s electrical system. If you re unsure, consulting a mechanic is advisable.
4. **Limited Customization** Unlike some high-end aftermarket units, the Celox VR1104RR131HS does not offer adjustable voltage settings or advanced features. It is a "plug-and-play" solution designed for reliability rather than customization.
5. **Potential for Counterfeit Products** As with any popular aftermarket part, there is a risk of purchasing a counterfeit Celox unit. To avoid this, buy from reputable sellers (e.g., official Celox distributors, trusted online marketplaces, or well-reviewed motorcycle parts stores) and verify the product s authenticity.
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### **Conclusion**
The Celox VR1104RR131HS regulator-rectifier is an excellent choice for Yamaha YFZ450R/YFZ450X owners who prioritize reliability, direct OEM compatibility, and high-quality electrical performance. It is particularly beneficial if you:
- Experience electrical issues (e.g., battery not charging, flickering lights, or voltage fluctuations).
- Plan to add aftermarket electrical accessories.
- Want a long-term solution that reduces the risk of failure in harsh riding conditions.
However, if your bike s electrical system is functioning correctly and you re not planning significant mods, the stock regulator-rectifier or a budget-friendly alternative might be sufficient. The upgrade is most justified for riders who demand durability and are willing to invest in a part that minimizes electrical troubles.
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### **Recommendation**
**Buy the Celox VR1104RR131HS if:**- You notice signs of electrical wear (e.g., weak battery, inconsistent charging).
- You plan to install aftermarket lights, gauges, or other electrical components.
- You want a reliable, long-lasting replacement with minimal risk of failure.
- You value OEM-level compatibility and brand reputation.
**Avoid it if:**- Your bike s electrical system is working fine, and you re not planning mods.
- You re on a very tight budget and can find a tested, high-quality alternative at a lower price.
- You lack confidence in performing the installation yourself (consider hiring a mechanic).
**Final Note:** Always verify the part s authenticity, follow installation instructions carefully, and test the bike s electrical system post-installation to ensure everything is functioning correctly. If possible, compare it with the stock unit or a known-good alternative before committing.
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