fits model: 660r, Yfm660r, Raptor. make: Yamaha. year: 2003–2005.

( Brand: Celox ), ( Manufacturer Part Number: DC3108SR130RS ), ( Type: Sensor ), ( Warranty: 90 Day ), ( Country Of Origin: China ), ( California Prop 65 Warning: Proposition 65 Warning For California Consumers. )
The **Celox DC3108SR130RS Sensor Switch** is a high-performance, precision-engineered component designed exclusively for Yamaha s iconic **Raptor 660R LE (YFM660R)** models from **2001 through 2005**, including the **2003 2005 thermal** variants. This advanced thermal sensor switch is engineered to replace the factory-equipped unit, ensuring optimal performance, reliability, and longevity in the bike s **electronic fuel injection (EFI) system**. Crafted from durable, high-grade materials, the Celox DC3108SR130RS is built to withstand the demanding conditions of high-performance riding, providing consistent and accurate temperature readings that are critical for proper fuel delivery, ignition timing, and overall engine efficiency.
The sensor switch operates by monitoring the **coolant temperature** within the engine bay, transmitting real-time data to the bike s ECU (Engine Control Unit) to adjust the air-fuel mixture accordingly. This ensures smoother cold starts, improved throttle response, and reduced emissions while preventing fuel wastage or potential engine damage from overheating. Unlike generic or aftermarket alternatives, the Celox unit is **directly compatible** with the Raptor 660R s wiring harness and mounting interface, eliminating the need for modifications or additional adapters. Its **sealed, corrosion-resistant construction** protects against moisture, dust, and thermal fluctuations, making it ideal for both urban commuting and aggressive off-road adventures.
For riders who demand precision and dependability, the Celox DC3108SR130RS is a **direct-fit, OEM-quality replacement** that restores factory-level performance without compromising on durability. Whether you're restoring a vintage Raptor or maintaining peak condition in your daily rider, this sensor switch delivers the accuracy and reliability needed to keep your engine running at its best season after season. With its **universal fitment** for the specified model years and **superior thermal response**, it stands as a trusted upgrade for enthusiasts seeking both performance and longevity in their Yamaha.
### **Pros and Cons of buying a Celox DC3108SR130RS Sensor Switch for Yamaha Raptor 660R LE/YFM-660R (2001 2005)**
#### **Pros:**1. **Compatibility** The Celox DC3108SR130RS is specifically designed as a direct replacement for the stock thermal sensor switch on the Yamaha Raptor 660R LE/YFM-660R models from 2001 to 2005. This ensures a proper fit without modification, reducing the risk of installation errors.
2. **Improved Reliability** Celox is a well-known brand in the motorcycle aftermarket, known for producing high-quality sensors and switches. The DC3108SR130RS is designed to be more durable than the original, reducing the likelihood of failure due to corrosion, wear, or electrical issues.
3. **Better Temperature Regulation** The sensor switch plays a critical role in managing the engine s cooling system. A high-quality replacement like the Celox unit can provide more accurate temperature readings and better control over the cooling fan operation, preventing overheating and improving engine longevity.
4. **Ease of Installation** Since it is a direct drop-in replacement, installing the Celox sensor switch is straightforward. Most riders can replace it themselves with basic tools, saving labor costs if opting for professional installation.
5. **Cost-Effective Upgrade** Compared to the cost of potential engine damage from a failing sensor switch, investing in a reliable replacement like the Celox unit is a cost-effective preventive measure. It is also often more affordable than purchasing an entire new cooling system.
6. **Compatibility with Aftermarket Mods** If you plan to modify your Raptor with aftermarket parts (e.g., performance exhaust, upgraded cooling systems), a high-quality sensor switch like the Celox DC3108SR130RS ensures that your modifications integrate smoothly with the stock cooling system.
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#### **Cons:**1. **Price Premium** While the Celox sensor switch is a reliable upgrade, it may cost slightly more than a generic or no-name replacement. However, the added durability often justifies the extra cost compared to cheaper alternatives that may fail prematurely.
2. **Limited Availability** Depending on your location, finding the Celox DC3108SR130RS may require ordering online, which could involve shipping delays. Some local motorcycle parts stores may not stock it, requiring a trip to a specialty shop.
3. **Potential Overkill for Stock Bikes** If your Raptor 660R is used primarily for light commuting or cruising without aggressive riding, the stock sensor switch may suffice. The Celox unit is more beneficial for riders who push their bikes harder, subject them to harsh conditions, or plan to modify them in the future.
4. **Installation Knowledge Required** While the installation is simple, improper handling (e.g., damaging the sensor tip or not properly sealing the gasket) could lead to leaks or inaccurate readings. Riders unfamiliar with sensor replacement should research the process or seek professional help.
5. **No Visible Performance Gain** Unlike performance upgrades like exhaust systems or suspension, replacing the sensor switch does not directly improve throttle response, power, or handling. Its benefits are primarily in reliability and cooling system integrity.
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### **Conclusion:**The Celox DC3108SR130RS sensor switch is a **strongly recommended upgrade** for Yamaha Raptor 660R LE/YFM-660R owners (2001 2005) who prioritize reliability, longevity, and peace of mind. Its direct compatibility, improved durability, and role in preventing overheating make it a worthwhile investment, especially for riders who use their bikes aggressively or plan to modify them. The minor drawbacks such as cost and availability are outweighed by the long-term benefits it provides.
For riders on a tight budget or those who rarely push their bikes to their limits, the stock sensor switch may still work fine, but the Celox unit offers a low-risk way to future-proof your cooling system. If you value preventative maintenance and want to avoid the hassle (and expense) of a failed sensor causing cooling issues, the Celox DC3108SR130RS is the best choice.
**Final Recommendation:** Purchase the Celox DC3108SR130RS sensor switch for your Yamaha Raptor 660R LE/YFM-660R. It is a reliable, easy-to-install upgrade that enhances the longevity and performance of your bike s cooling system.
YFM660RSE RAPTOR 660R SE 2005. Premium Quality Replacement Part, FAN THERMO SENSOR SWITCH. YFM660RLE RAPTOR 660R LIMITED EDITION 2002 -2004. Fits Following YAMAHA model's: YFM660R RAPTOR 660R 2001 - 2005.