fits model: Trx, 350. make: Honda. year: 2015–2023.

( Brand: Wsm ), ( Manufacturer Part Number: 65-104 ), ( Part Type: Starter Solenoid )
The **WSM 65-104 Starter Solenoid** is a high-performance, direct-replacement component meticulously engineered to restore peak starting power and reliability to Honda s legendary 350 and 520 four-stroke dirt bikes, including models from the TRX series spanning the years 2004 through 2007 and the updated 2015 to 2023 iterations. Designed with precision and built to exceed OEM specifications, this solenoid is crafted from durable, corrosion-resistant materials to withstand the harshest riding conditions, from dust-choked trails to high-altitude climbs where performance is critical. The unit features a robust internal coil winding system, optimized for instant engagement and seamless electrical conductivity, ensuring a clean, powerful crank every time. Its compact yet rugged housing is engineered for a snug, interference-free fit, eliminating common issues like misalignment or binding that can lead to premature wear or failure. Whether you re reviving a classic TRX 350 for weekend rides or upgrading a newer model for enhanced reliability, this solenoid delivers a noticeable improvement in starting efficiency, reducing the risk of dead batteries or sluggish cranks especially in cold weather or after prolonged periods of inactivity. Backed by WSM s reputation for quality and compatibility, this part is a straightforward, no-fuss solution for riders who demand dependability without compromising on performance. Perfect for both DIY enthusiasts and professional mechanics, the WSM 65-104 solenoid integrates seamlessly into your bike s electrical system, offering a hassle-free installation and long-term durability to keep your Honda running strong for years to come.
### **Pros and Cons of buying a WSM 65-104 Starter Solenoid for Honda 350/520 TRX (2004 2007, 2015 2023)**
#### **Pros:**1. **High-Quality Construction** WSM (Western Specialty Manufacturing) is known for durable, well-engineered parts designed to meet or exceed OEM standards. This solenoid is built to last, reducing the risk of premature failure.
2. **Direct Replacement Fit** The part number (35850-HN7-003 / 35850-HR3-FA1) is a direct fit for the specified Honda TRX models, ensuring compatibility without modifications. It should align perfectly with the starter and ignition system.
3. **Improved Reliability Over OEM** Many aftermarket solenoids are designed to be more robust than stock units, which can wear out or corrode over time. WSM s solenoid may offer better electrical conductivity and mechanical durability.
4. **Wider Availability** Unlike some niche OEM parts, WSM components are widely stocked by performance and off-road parts retailers, making them easier to source than original Honda solenoids.
5. **Potential Performance Benefits** Some riders report that aftermarket solenoids provide a slightly stronger cranking power, which can be beneficial in cold weather or when the battery is weak.
6. **Warranty Coverage** WSM typically offers a warranty (often 1 2 years) on their products, providing peace of mind against defects in materials or workmanship.
7. **Cost-Effective Upgrade** While not the cheapest option, it is often more affordable than a full starter replacement and can extend the life of an existing starter.
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#### **Cons:**1. **Higher Upfront Cost** Compared to generic or no-name solenoids, WSM s product is priced higher, which may not be justified if the original solenoid was still functioning well.
2. **Installation Complexity** If you re not experienced with electrical work, replacing a solenoid can be tricky due to wiring connections and torque specifications. Improper installation (e.g., overtightening) can damage the starter or solenoid.
3. **Mixed Reviews on Longevity** While WSM is reputable, some users report that their solenoids fail prematurely (e.g., within 1 2 years) due to internal corrosion or poor electrical contacts, especially in harsh conditions (mud, water, extreme temperatures).
4. **Potential Incompatibility with Modified Systems** If your bike has aftermarket starters, wiring harnesses, or ignition systems, the solenoid may not integrate perfectly, requiring additional adjustments.
5. **Limited Customization** Unlike some high-end aftermarket solenoids, this WSM part is a standard replacement and doesn t offer features like adjustable cranking power or diagnostic LEDs.
6. **Availability Gaps** While widely available, some local dealers may not stock it, requiring online ordering with potential shipping delays.
7. **Risk of Counterfeit Products** Purchasing from untrusted sellers (e.g., third-party Amazon or eBay vendors) could result in fake or low-quality knockoffs that perform poorly.
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### **Conclusion:**The **WSM 65-104 starter solenoid** is a solid choice for Honda 350/520 TRX owners who prioritize reliability and quality over cost. It offers a noticeable upgrade in durability compared to OEM parts and is a practical solution if your current solenoid is failing or showing signs of wear. However, it is not a "set-and-forget" part proper installation is critical, and its longevity may vary based on riding conditions and maintenance.
If your bike s solenoid is still functioning but showing intermittent issues (e.g., clicking without cranking), testing the battery, starter, and wiring before replacing the solenoid may save money. For those who frequently ride in extreme conditions (deep mud, saltwater, etc.), pairing this solenoid with a high-quality starter and corrosion-resistant wiring is advisable.
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### **Recommendation:** - **Buy the WSM solenoid if:**- Your current solenoid is dead or failing frequently.
- You value a reputable brand with better build quality than OEM.
- You re comfortable with a slightly higher upfront cost for long-term reliability.
- You plan to keep the bike long-term and want to avoid repeated solenoid replacements.
- **Consider alternatives if:**- Your solenoid is still working but has minor issues (e.g., slow cranking). A battery test or starter check might resolve the problem.
- You re on a tight budget generic solenoids (e.g., from RockAuto or local shops) may suffice for short-term use.
- You suspect wiring or battery issues address those first to avoid unnecessary solenoid replacements.
- **Installation Tips:**- Use a torque wrench to avoid overtightening the solenoid bolts (typically 15 20 ft-lbs for Honda TRX).
- Clean corrosion from terminals before installation.
- Test the solenoid after installation by listening for a solid click (not a weak or intermittent one) when you turn the key.
For most riders, the WSM solenoid is a **worthwhile investment** if the original is failing, but it s not a "magic fix" for underlying electrical or starter problems. Always pair it with a well-maintained battery and starter for optimal performance.
Starter Solenoid Honda 350 - 520 TRX 04-07 15-23 35850-HN7-003 35850-HR3-FA1: Brand WSM, Part Number 65-104, OEM Cross Reference 35850-HN7-003, 35850-HR3-FA1.