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Introducing Dayco's Premium Nitrile SAE 20R2 Class B Radiator Hose for heavy-duty truck applications! Made with a single-ply fabric reinforcement over a fully embedded helical steel wire, these hoses offer exceptional strength and kink resistance. Their nitrile tube provides excellent oil resistance, while the neoprene cover ensures low oil resistance. Perfect for routing coolant in vehicles requiring multiple bends or bends with small radiuses, these high-quality hoses are ideal for heavy-duty fleet and vehicle maintenance applications. Choose Dayco's Radiator Hose for durability, reliability, and superior performance!