This category covers the rubber and moulded-plastic runs that carry coolant, transmission fluid, power steering fluid, fuel vapour and refrigerant around the engine bay, plus the hard lines that route along the frame and the clamps and adapters that seal them.
The range here is close to 14,000 parts, split between flexible hoses, rigid tubes and pipes, lines and pipes assemblies, clamps and fittings, and adapters. Air conditioning hose assemblies, coolant and heater hoses, transmission cooler lines and DEF lines are all represented, in the GM, Ford, Mopar and ACDelco part numbers that appear on the original component.
Fitment on a hose is decided by four numbers rather than by appearance: end fitting type, inside diameter, overall length and the routing shape. Two hoses that look identical in a photograph will differ by a bend angle, and a hose that is forced into place will fail at the crimp. Compare the part number first, then the length and the fitting style shown on the product page. Rubber parts also age — if you are replacing one hose on a 15-year-old assembly, check the condition of the ones either side of it.
