Built with strong strength synthetic rubber, it withstands 120°C temperatures and resists abrasion / erosion, featuring a specializes inner lining that boosts oxidation resistance by 50% for extended service life Designed for car owners and enthusiasts seeking stable cooling systems upgrades, its flexible structure enables tool without installation while maintaining factory grade compatibility Engineered with advanced fluid dynamics, this radiator hose ( 31686893 / 31338179) ensures optimal coolant circulation, enhancing engine cooling efficiency by 30% for car 60, 70, 60, 80 models with OEM accuracy Performs exceptionally in city and long distance travel, stabilizing engine temperatures during high load operations under extreme heat conditions for car vehicles Rigorously tested with <1% leakage rate, its heat aging resistant formulas reduces replacement frequency, making it a strong solution for car 60 / 70 / 80 radiator hose assemblies, Manufacturer: ZBIianxer