fits model: Cp955, Gs350, Gs450h. year: 2013–2018.

( Brand: Standard Motor Products ), ( Manufacturer Part Number: CP955 ), ( Part Type: Valve Canister Motor ), ( Ipn: 2-284189 ), ( Country Of Origin: Japan )
The **Standard Motor 2-284189 CP955 Vapor Canister Purge Valve** is a precision-engineered component designed specifically for the **2013 2018 Honda GS350 and GS450H** motorcycles, ensuring optimal performance and compliance with modern emissions standards. This high-quality solenoid-operated purge valve plays a critical role in the vehicle s evaporative emissions control system (EVAP), regulating the flow of fuel vapors from the fuel tank and charcoal canister to the engine s intake manifold during cranking and closed-throttle operation. Crafted from durable materials, including a robust stainless steel or reinforced plastic housing and a sealed solenoid mechanism, this valve is built to withstand the demands of daily riding while maintaining reliability over extended periods. Its compact yet robust design integrates seamlessly with the bike s existing EVAP system, featuring a secure O-ring seal to prevent leaks and ensure a tight fit on the intake manifold or purge line connection. The CP955 operates with precision, activating only when the engine s purge control solenoid receives the appropriate signal from the engine control module (ECM), allowing vapor recirculation during specific engine conditions such as idle or deceleration to minimize harmful emissions. Whether you're restoring a classic GS350 or upgrading your GS450H s emissions system, this valve delivers a direct replacement solution that matches or exceeds OEM specifications, helping to maintain peak engine efficiency and compliance with environmental regulations. Its straightforward installation and compatibility with aftermarket EVAP systems make it an ideal choice for both DIY enthusiasts and professional mechanics seeking a dependable, long-lasting component.
### Pros and Cons of buying a Standard Motor 2-284189 CP955 Vapor Canister Purge Valve for 2013 2018 GS350/GS450H
#### **Pros:**1. **Direct OEM Replacement** This part is designed as a direct fit for your GS350/GS450H, ensuring compatibility without modifications. It matches the original equipment manufacturer (OEM) specifications, reducing the risk of installation issues or performance problems.
2. **Reliability and Durability** Standard Motor is a reputable manufacturer known for producing high-quality automotive and motorcycle components. The CP955 purge valve is built to last, especially if your bike is used in normal riding conditions. It helps maintain proper evaporative emissions control, which is critical for passing emissions tests and preventing fuel system malfunctions.
3. **Cost-Effective Solution** Compared to aftermarket alternatives, this part is often priced reasonably. It avoids the potential pitfalls of cheaper, non-branded parts that may fail prematurely or cause secondary issues (e.g., fuel odor, engine stalling, or check engine lights).
4. **Easy Installation** The purge valve is relatively straightforward to replace, requiring basic tools and minimal mechanical skill. Most riders can install it themselves with the help of a repair manual or online guides. This saves labor costs if you re not taking it to a dealer or shop.
5. **Prevents Emissions Failures** The purge valve is a key component of your bike s evaporative emissions system (EVAP). A faulty valve can trigger a check engine light (OBD-II code P0440 or similar) and cause your GS350/GS450H to fail emissions testing. Replacing it proactively avoids these issues, especially if you re subject to emissions inspections.
6. **Minimal Performance Impact** Unlike performance-oriented aftermarket parts, this is a functional replacement. It won t negatively affect throttle response, fuel efficiency, or power output. It simply ensures the EVAP system operates as intended.
7. **Warranty Coverage** Standard Motor parts often come with warranties, providing peace of mind in case of defects. This is particularly useful if the valve fails shortly after installation.
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#### **Cons:**1. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., third-party marketplaces without seller verification) may result in counterfeit or low-quality knockoffs. Always buy from authorized dealers, official Standard Motor distributors, or reputable online retailers (e.g., Amazon, RockAuto, or motorcycle-specific stores) to avoid this risk.
2. **Limited Customization** This is a stock replacement part, meaning it won t offer any performance upgrades or modifications. If you re looking for a high-flow or performance-tuned purge valve, you ll need to seek aftermarket alternatives (though these are rare and may not be necessary for standard riding).
3. **No Significant Cost Savings Over OEM** If you re replacing the valve due to failure, the cost may be similar to buying an OEM part from a dealer. However, purchasing from an aftermarket supplier (like Standard Motor) is often cheaper than buying directly from Honda or a dealership.
4. **Installation Challenges for Beginners** While the installation is manageable, it requires some familiarity with motorcycle mechanics. If you re unfamiliar with working on your GS350/GS450H s fuel system, you might encounter difficulties locating the valve or properly resealing connections. Consulting a repair guide or video tutorial is advisable.
5. **Environmental Concerns (Minor)** The EVAP system is designed to reduce fuel vapor emissions. While replacing the valve doesn t directly harm the environment, improper disposal of the old valve (if not recycled) could be a minor consideration for eco-conscious riders.
6. **Availability Issues** Depending on the region, Standard Motor parts may not be as widely stocked as OEM parts. You might need to order online, which could introduce delays if the part is backordered.
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### **Conclusion:**The **Standard Motor 2-284189 CP955 purge valve** is a **reliable, cost-effective, and direct OEM replacement** for your 2013 2018 GS350/GS450H. It addresses the core issue of a failing EVAP system preventing check engine lights, emissions failures, and potential fuel system malfunctions without compromising performance. The part is well-suited for riders who prioritize **durability, compatibility, and ease of installation** over customization.
The main drawbacks are **potential counterfeit risks** (mitigated by purchasing from trusted sources) and the **lack of performance enhancements**. For most riders, the pros far outweigh the cons, making this a **strong recommendation** for anyone experiencing purge valve failure or proactive maintenance.
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### **Recommendation:**1. **Purchase from a Trusted Source** Buy the part from an authorized Standard Motor distributor, a reputable online retailer (e.g., RockAuto, Amazon, or a motorcycle parts specialist), or a local Honda dealer to avoid counterfeit items.
2. **Verify Compatibility** Double-check the part number (2-284189 CP955) and ensure it matches your bike s year and model (2013 2018 GS350/GS450H). Some aftermarket valves may have slight variations, so stick to the exact OEM replacement.
3. **Follow Installation Guidelines** Refer to your bike s service manual or a detailed online guide (e.g., from Honda or a motorcycle repair resource like *Motorcycle Mechanics Corner*) to ensure proper installation. Pay attention to sealing the connections to prevent leaks.
4. **Reset the Check Engine Light** If your bike has a check engine light due to the purge valve failure, use an OBD-II scanner to clear the code after replacement. This ensures the system recognizes the new valve.
5. **Monitor Performance** After installation, take your bike for a test ride to confirm the check engine light stays off and the EVAP system functions normally. Listen for unusual noises or smells from the fuel system.
**Final Verdict:** **Buy the Standard Motor purge valve** if you need a **reliable, OEM-quality replacement** for your GS350/GS450H. It s the safest and most practical choice for resolving EVAP system issues without unnecessary risks or complications.
All accessories hardware. Cortex: 2M1549. Placing an order outside the US is easy.
SPECIFICATIONS: Color/Finish:Black, Gray, Connector Gender:Female, Quantity:1, Shape:Rectangular, Contents:Solenoid, Port Quantity:2, Terminal Gender:Male, Type:Blade. Standard Motor Products CP955 Vapor Canister Purge Valve For 13-18 GS350 GS450h. BWD: CP10029. Original packaging.