GMB Corporation manufactures and sells automotive parts in Japan and internationally. Its product lines include cooling systems such as electronic and mechanical water pumps and fan clutches; engine drive systems such as tensioner and idler bearings and timing belt kits; and transmission parts such as valve spools. The company also offers drive line components including universal and constant velocity joints, steering and suspension parts such as ball joints, tie-rod and rack ends, and steering joints, as well as axle parts including wheel bearing parts and bearings such as single ball and clutch release bearings. Founded in 1943, GMB Corporation is headquartered in Nara, Japan.