Coolant leak at the heater hose plastic connector? This heater hose assembly has been re-engineered to eliminate leaks in the original plastic connector. This direct-replacement heater hose is made of aluminum for improved strength and durability. All Dorman products are engineered in the United States and backed by 100 years of automotive aftermarket experience. Our solutions are thoroughly tested and inspected, and if you experience any difficulty installing or using our parts, we have a dedicated technical support team of ASE Blue Seal certified professionals ready to help. To learn more about our quality and innovation, visit DormanProducts.com.