GMB Korea Corp. manufactures and sells automotive parts in South Korea and internationally. Its product lines include engine parts such as water pumps, viscous fan clutches, tensioner bearing assemblies, idler bearing assemblies, sockets, and oil pumps; auto transmission parts such as spool valves, manual control shafts, hydraulic pressure pistons, pinion shafts/differential pins, and retainer-U/d brakes; chassis parts including universal joints, tripod joints, steering joints, and cages; bearing parts consisting of ball, water pump, and clutch release bearings; and green energy parts including electric water pumps, integrated thermal management modules, and valve pump modules. The company was founded in 1979 and is headquartered in Changwon-si, South Korea.