This combo kit from Davies Craig offers over 10% saving compared to purchasing the pump and controller separately.EWP115 PumpThe revolutionary EWP (Electric Water Pump) from Davies Craig is made from anti-corrosive, lightweight, glass-filled nylon & incorporates a carbon mechanical face seal for added reliability. The EWP improves engine cooling control and capacity while giving you more power and improved fuel economy. The EWP is universal and fits almost all makes of vehicles on the road today.This EWP115 version is a large capacity pump suitable for use on big capacity engines eg V8 and above.The benefits of fitting a Davies Craig EWP over an existing mechanical pump are - Coolant is circulated after engine shutdown preventing hotspots Increased engine power and torque Better control of engine temperature Increased cooling capacity Improved fuel economy Increased engine life Radiator size and coolant capacity can be reduced saving weight Increase in maximum engine speedDavies Craig