Hummer mainly produces SUVs, off-road cars, and parts. Its R&D and experimental teams are in the U.S., so the quality of Hummer's products can keep unchanged. Hummer attracts drivers with great parts, like the radiator hose. The car has upper and lower radiator hose parts which are completely different. The upper hoses connect the engine to the radiator. But, the lower hoses come accompanied by the wound wire spring.
Hummer provides lots of high-performance parts. But after a long time, the worn radiator hose might cause huge problems. The Hummer hoses are responsible for transferring the coolant from the radiator to the engine block. An old hose part can be removed as follows. First, disconnect the negative battery terminal. Second, drain the engine coolant. Then remove the hose clamps holding the radiator hose onto the radiator. And finally, remove the hose clamps holding the radiator hose onto the engine block/water pump. A long catalog of advanced products is given here. There are plenty of inexpensive and quality parts online.