DIY water cooling reservoir tank for electric motorcycle and PC systems, made from POM and engineering plastic with acrylic section, measuring 155mm length by 50mm diameter, available in red, green, blue or white, with optional lighting version.
155mm Water Cooling Reservoir Tank for Electric Motorcycle and PC Cooling Systems

This versatile water cooling reservoir provides a central component for liquid cooling setups in both custom computer builds and electric motorcycle applications. Measuring 155mm in length with a 50mm diameter, the cylindrical tank offers practical coolant storage and expansion capacity for closed-loop cooling systems. Available in four distinct colour options—red, green, blue, and white—and with an optional lighting version, this reservoir combines functionality with visual customisation possibilities for DIY cooling projects. The clear acrylic section allows for easy monitoring of coolant levels without interrupting system operation.
Features and Construction

The water cooling tank combines multiple engineering plastics to create a durable, functional reservoir suitable for various cooling applications. Its construction focuses on chemical compatibility with standard cooling fluids while maintaining structural integrity under typical operating pressures.
Material and Build
The reservoir utilises three primary materials: POM (polyoxymethylene), acrylic, and engineering plastics. POM provides excellent chemical resistance and dimensional stability, making it suitable for contact with water-based coolants. The clear acrylic section offers transparency for visual liquid level monitoring, while additional engineering plastics contribute to the tank's overall structural strength. This material combination creates a reservoir that balances durability with functional visibility.
Size and Practical Fit
With dimensions of 155mm length and 50mm diameter, this cylindrical tank provides sufficient capacity for most small to medium cooling systems. The compact size allows for flexible mounting in various configurations, whether within a computer case or on an electric motorcycle frame. The standardised diameter ensures compatibility with common tubing sizes used in liquid cooling setups, facilitating straightforward integration into existing or new cooling loops.
Uses and Placement

This water cooling reservoir serves multiple applications across different cooling scenarios, from performance computing to vehicle thermal management. Its dual-purpose design makes it suitable for enthusiasts working on diverse cooling projects.
Event or Professional Use
For professional or demonstration systems, such as showcased computer builds or exhibition motorcycles, the optional lighting version adds visual impact while maintaining cooling functionality. The clear acrylic section combined with coloured housing (available in red, green, blue, or white) creates distinctive visual effects when illuminated. This makes the reservoir suitable for systems where both performance and appearance matter, such as competition builds or display installations.
Everyday Home Use
In typical home cooling applications, whether for gaming computers or personal electric vehicles, the reservoir provides reliable coolant management without excessive complexity. The straightforward design with visible liquid levels makes maintenance simpler, as users can quickly check coolant condition and volume. The manufacturer's caution against alcohol-containing liquids ensures users select appropriate cooling fluids for long-term system health.
Benefits and Buying Value

This water cooling tank offers practical advantages through its material selection, sizing, and application flexibility. Rather than focusing on premium claims, its value comes from straightforward functionality and compatibility.
Reuse and Low Maintenance
The chemical-resistant materials (POM and engineering plastics) allow for long-term use with standard cooling fluids without degradation concerns. The clear acrylic section enables easy visual inspection, helping users monitor coolant condition and identify potential issues before they become problems. The manufacturer's specific guidance against abrasive cleaning methods supports proper maintenance practices that preserve the tank's clarity and functionality over time.
Why Choose This Product
This reservoir stands out through its dual-application design suitable for both computer and electric motorcycle cooling systems. Rather than being specialised for only one use case, its dimensions and material composition work effectively across different cooling scenarios. The availability of four colour options and optional lighting provides customisation possibilities without compromising core functionality. When compared to single-purpose reservoirs, this product offers broader application potential for cooling enthusiasts working on multiple projects.






