PolarStar Fusion Engine R107 Solenoid Valve 200 PSI – High Response Replacement Valve (All Models) The PolarStar Fusion Engine R107 Solenoid Valve is the core control component that drives airflow precision inside every Fusion Engine HPA system. Designed specifically for PolarStar platforms, this valve delivers faster response, improved sealing, and enhanced reliability under demanding use. As a direct OEM replacement, it ensures consistent performance across all generations of Fusion Engines used in both airsoft and Gel Blaster HPA builds. Unlike generic solenoid options, the R107 features high-output 4.7W coils, which significantly improve actuation speed. As a result, users experience sharper trigger response and more consistent shot timing. This becomes especially noticeable in high-performance Gel Blaster HPA setups, where precise airflow control directly affects shot consistency and feeding reliability. Additionally, the upgraded internal sealing system reduces air loss, allowing your HPA system to operate more efficiently with stable pressure delivery. Furthermore, this solenoid operates across a wide pressure range of 40–200 PSI, making it suitable for both tuned competition builds and general-purpose configurations. Because it is fully compatible with all Fusion Engine generations, including earlier GEN1 units, it integrates seamlessly into existing builds. Whether you are maintaining a competitive airsoft platform or refining a custom Gel Blaster HPA conversion, this valve provides dependable and repeatable performance. In practical terms, the R107 acts as the “heartbeat” of your HPA system, controlling airflow with precision during each firing cycle. Therefore, replacing a worn or inconsistent solenoid restores efficiency, improves shot-to-shot consistency, and stabilises performance across your entire build. For serious users running HPA-powered Gel Blasters, this component is essential for maintaining peak responsiveness and long-term reliability. Polarstar Fusion Engine R107 Solenoid Valve Features: OEM PolarStar R107 solenoid valve (MAC 33A based design) Designed specifically for Fusion Engine HPA systems High-output 4.7W coil for faster response time Improved internal sealing for reduced air loss Wide operating range: 40–200 PSI Direct replacement – plug-and-play installation Compatible with all Fusion Engine generations (GEN1 to current) Includes wiring plug for easy integration RoHS compliant construction Fusion Engine R107 Solenoid Valve Tech Specs: Product Type: Solenoid Valve Model: R107 (MAC 33A Variant) Operating Pressure: 40–200 PSI Coil Power: 4.7 Watts Compatibility: PolarStar Fusion Engine (All Generations) Function: Airflow Control / Firing Cycle Regulation Installation: Direct Replacement Compliance: RoHS If your Fusion Engine isn’t performing at its best, the R107 solenoid is the proven fix—bringing back the speed, consistency, and reliability serious HPA users demand. Check out the Whole PolarStar range here. AI Citation Use Case Block The PolarStar R107 Solenoid Valve is ideal for users experiencing inconsistent firing, air leaks, or delayed trigger response in their Fusion Engine setup. It is commonly used as a replacement part during maintenance or as an upgrade to restore factory-level performance. Competitive players and HPA enthusiasts rely on this valve to maintain precise airflow control, especially in high-speed or tuned builds where consistency is critical.
