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    Your truck and bus engines rely on the many pipes, parts, and hoses that connect critical systems and drive your vehicle performance. As a leader in fluid power solutions, Gates engineers OE quality and OE equivalent engine hoses for virtually every fleet, truck, bus and heavy duty vehicle on the road today, with premium engine hoses designed to meet or exceed heat, pressure, and corrosion manufacturer specifications. Find high quality fuel line injection and transfer hoses, flexible cooling system and heater hoses, complete engine hose solution kits, and more - so you can manage your workshop inventory and restore your commercial fleet engines back to peak performance.