Heavy Equipment Parts stocks aftermarket control valves for excavators and heavy machinery. The control valve directs hydraulic flow to the boom, arm, bucket, swing, and travel functions a faulty or leaking control valve causes slow or erratic machine movements and wasted hydraulic energy. Our control valves are precision-machined to OEM spool tolerances and pressure ratings for accurate, leak-free hydraulic control. Compatible with Komatsu, Caterpillar, Hitachi, Hyundai, Kobelco, Volvo, Doosan, and more. Fast dispatch from our Sydney warehouse.