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The Gates upper flexible heavy-duty coolant hose is a replacement hose that carries engine coolant for Mack CH Series 6-cylinder 12.0L diesel applications. Built as an upper radiator line, it restores coolant flow between engine and radiator connections and matches heavy-duty routing for commercial use. Specify this hose for Mack CH Series trucks covering 1989–1999 applications.
Gates 89-99 Mack CH Series Mack 6-Cyl. 12.0L Diesel Upper Flexible HD Coolant Hose
