Amazon.com: YIJIABINGRU MSQ 36mm Water Jet with 7075 2 Blades Impeller Water Thruster Pump with Reverse Buckle 4mm Shaft for RC Model Jet Boat rc Boat Parts (Color : 4mm Motor(Coupling)) :
Pro Boat Sprintjet 9" Self-Righting Deep-V Jet Boat Brushed RTR, Blue - BOEMarine.com