The Solas Magnum 144 mm pump is a high-performance jet pump upgrade, widely used by riders seeking better acceleration, improved hook-up, and stronger overall thrust. Designed to replace the stock 144 mm Yamaha pump, this upgrade is ideal for racing, freestyle tricks, surf riding, or high-horsepower builds such as the WaveBlaster 701, SuperJet 701, and various custom hulls.
This is an axial-flow pump constructed from corrosion-resistant cast aluminum, CNC-machined for precision, and hard anodized for durability. It features a multi-vein stator design (typically 5 or 6 veins) that straightens water flow and reduces cavitation, resulting in smoother power delivery and sharper throttle response.
The Magnum pump is compatible with standard Yamaha 144 mm impellers — including Solas and Skat-Trak models — and it uses a replaceable wear ring. It is also equipped with a tapered venturi nozzle that increases exit velocity, providing more thrust and enhanced top speed. Some versions of the Magnum pump include dual cooling ports for better engine cooling, especially on modified or ported engines.
This pump is engineered to be more rigid and reliable than stock, able to withstand the stress of freestyle landings and the high torque of big-bore or high-compression engines. It pairs exceptionally well with performance impellers and aftermarket intake grates and ride plates.
Installation may require precise alignment with the pump shoe and ride plate. Some setups might also require a longer or upgraded driveshaft and custom shimming, depending on the hull and application.
In terms of performance, the Solas Magnum 144 mm pump delivers quicker holeshots, reduced cavitation, more stable high-speed handling, and greater overall efficiency in water transfer. Whether you’re launching backflips in the surf, carving buoys, or simply upgrading a vintage ski for modern performance, this pump is one of the most trusted options in the PWC performance world
