We have a new heavy duty Air Compressor fits LR3 / Discovery 3 | 05 - 09, Range Rover Sport | 06 - 09 and Range Rover Sport Supercharged | 06 - 09. Our compressor has be upgraded in may ways over the original Hitachi. First we upgraded the push fit connectors to olive type. This give the unit a much better seal. The compressor performance was also increased it is 19secs quicker than Dunlop to 17BAR (This is the amount required to lift the truck). Its also has upgraded heat sinks so it doesnt get anywhere near as hot as the other units on the market.