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Refresh exhaust flexibility with the Mack Exhaust Bellow Pipe. This flexible exhaust pipe is used in Mack exhaust service where movement, vibration, and heat expansion need a pipe section that can absorb motion without stressing nearby connections. Its insulated bellow-style construction makes it more accurate than a plain rigid exhaust pipe. The Mack 21533396 belongs in exhaust repairs where a worn flex section is causing leaks, noise, or poor fit at the connection.
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