This direct coolant hose features part number specification and flexible construction, designed to withstand extreme engine temperatures while maintainingcoolant in cooling systems Maintains stable engine temperatures during city commutes, highway driving, or heavy load conditions, effectively overheating in SUVs across weather environments Accuracy engineered Coolant Hose ( part number 1668301400) ensures perfect fitment for GL450 / GL550 / GLS550 / ML550 models, crafted with rubber for durability and leak proof Ideal for owners, Machinery, and enthusiasts seeking part number cooling structure constituents for routine maintenance or engine repair projects Critical cooling structure, this specific radiator hose replaces worn factory constituents while meeting initial equipment standards for model years, Manufacturer: HOOLRZI