fits model: Yfm400, 400, 2wd, 4wd, Kodiak. make: Yamaha. year: 2000–2002.

( Brand: Celox ), ( Manufacturer Part Number: DC3107SR130RS ), ( Part Type: Switch Sensor )
The **Celox DC3107SR130RS Thermo Sensor Switch** is a high-performance, precision-engineered temperature monitoring solution designed specifically for Yamaha s **YFM400 Kodiak 400** (2WD and 4WD models) from the years **2000 through 2002**. This rugged, reliable component serves as a critical safety and operational sensor, ensuring optimal engine performance while preventing overheating and potential mechanical failure. Crafted with durability in mind, the Celox switch is built to withstand the demanding conditions of off-road and heavy-duty applications, where extreme temperatures, vibrations, and environmental stressors are common. Its **DC3107SR130RS** designation indicates a **130 C (266 F) thermal cutoff rating**, meaning it will activate and interrupt power to the cooling system or related components if the engine temperature exceeds this threshold, thereby protecting the engine from catastrophic overheating. The switch features a **highly sensitive bimetallic sensing element**, which responds rapidly to temperature fluctuations, providing immediate protection without unnecessary delays. This makes it an ideal upgrade for owners seeking enhanced reliability, especially in high-performance or extended-use scenarios where stock sensors may struggle to keep up. Installation is straightforward, as the Celox switch is designed to replace the factory sensor with minimal modifications, ensuring a seamless fit while maintaining the original wiring and mounting points. Whether used in towing, hauling, or off-road adventures, this sensor switch offers peace of mind by acting as a silent guardian against thermal stress, extending the lifespan of your Yamaha Kodiak 400 s engine and cooling system. Built to last, the Celox DC3107SR130RS is a testament to precision engineering, combining affordability with uncompromising performance for the discerning off-road enthusiast.
### **Pros and Cons of buying a Celox DC3107SR130RS Thermo Sensor Switch for Yamaha YFM400/Kodiak 400 (2000 2002)**
#### **Pros:**1. **Direct Compatibility** The Celox DC3107SR130RS is specifically designed as a direct replacement for the stock thermostat sensor switch in the Yamaha YFM400/Kodiak 400 (2000 2002 models). This means it fits without modification and should integrate seamlessly with the engine s cooling system.
2. **Improved Reliability** Many aftermarket thermostat switches are built with higher-quality materials than OEM parts, reducing the risk of premature failure (e.g., sticking, corrosion, or electrical issues). Celox is a reputable brand known for durability in automotive applications.
3. **Better Temperature Regulation** Some users report that aftermarket thermostat switches provide more consistent temperature control, preventing overheating or excessive idling. This can be particularly useful in cold starts or high-demand conditions.
4. **Ease of Installation** The part is designed for straightforward replacement, requiring only basic tools. No wiring harness modifications are typically needed, and the installation process is similar to swapping the original sensor.
5. **Cost-Effective Upgrade** Compared to full cooling system overhauls or engine rebuilds, replacing the thermostat switch is a low-cost solution to address cooling-related issues. The price is often just a fraction of labor-intensive repairs.
6. **Prevents Long-Term Damage** A failing thermostat switch can lead to overheating, which damages the water pump, head gaskets, or cylinder heads. Replacing it proactively can save money on more extensive repairs down the line.
7. **Widely Available** As a common replacement part for Yamaha YFM400/Kodiak models, it is easy to source from online retailers, auto parts stores, or Yamaha dealerships.
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#### **Cons:**1. **Potential for Incompatibility with Modified Systems** If the engine has been heavily modified (e.g., forced induction, custom cooling setups, or aftermarket water pumps), the stock thermostat switch (or even this replacement) may not be optimized for the new conditions. Always verify compatibility with any modifications.
2. **Quality Variability** While Celox is a trusted brand, counterfeit or low-quality knockoffs may exist in the aftermarket. Purchasing from a reputable seller (e.g., Amazon, RockAuto, or a trusted local parts store) reduces this risk but cannot eliminate it entirely.
3. **No Performance Gains** This part does not improve engine performance; it only ensures proper temperature regulation. If the engine is running poorly due to other issues (e.g., fuel system, ignition, or mechanical wear), replacing the thermostat switch alone will not address those problems.
4. **Limited Lifespan** Like any mechanical component, the thermostat switch will eventually wear out. While Celox parts are durable, they are not "forever" parts and may need replacement every 50,000 100,000 miles, depending on conditions.
5. **Diagnostic Challenges** If the new switch fails shortly after installation, diagnosing whether the issue is the part itself or another problem (e.g., a faulty water pump, coolant leaks, or electrical gremlins) can be time-consuming.
6. **No Warranty on Some Retailers** Some online sellers may not offer warranties or returns, leaving you without recourse if the part fails prematurely. Always check the seller s return policy before purchasing.
7. **Requires Basic Mechanical Knowledge** While the installation is simple, improper handling (e.g., overtightening, cross-threading, or improper coolant mixing) can cause leaks or damage. Those unfamiliar with engine work may need guidance.
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### **Conclusion:**The **Celox DC3107SR130RS thermostat switch** is a **strong, cost-effective choice** for Yamaha YFM400/Kodiak 400 owners (2000 2002) experiencing cooling-related issues or looking to preemptively replace a worn-out OEM part. Its **direct compatibility, reliability, and ease of installation** make it a practical upgrade for most users. However, it is **not a performance part** and should not be expected to fix broader engine problems.
For **stock or lightly modified engines**, this switch is a **reliable and recommended replacement**. If the engine has **significant modifications or cooling system changes**, additional research or consultation with a mechanic may be necessary to ensure the part will function correctly under the new conditions.
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### **Recommendation:**- **Buy from a trusted source** (e.g., RockAuto, Amazon, or a local Yamaha dealer) to avoid counterfeit parts.
- **Inspect the part upon arrival** for damage or defects before installation.
- **Follow the installation instructions carefully**, ensuring proper sealing and coolant mixing (use a 50/50 ethylene glycol-water mix for optimal protection).
- **Monitor the engine s temperature** after installation to confirm the switch is functioning correctly.
- **Consider pairing this upgrade with a coolant flush** if the system hasn t been serviced in a while, as old coolant can degrade over time.
**Final Verdict:** **Highly recommended** for standard applications, provided the engine is not heavily modified. If in doubt about compatibility, consult a Yamaha specialist or mechanic before purchasing.
KODIAK 400 4WD REALTREE X-TRA YFM400 2000. KODIAK 400 2WD YFM400 2000 - 2001. KODIAK 400 HUNTER 4WD YFM400 2001 - 2002. KODIAK 400 4WD YFM400 2000 - 2002.
Fits Following YAMAHA model's.