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Aftertreatment

Exhaust Aftertreatment

Beginning with the Environmental Protection Agency's EPA07 emissions standards, the use of an exhaust aftertreatment system has been required on all diesel heavy duty trucks. The exhaust aftertreatment system is key to reducing the amount of harmful pollutants produced by the engine that are released into the atmosphere. Alliance™ Parts offers OE-quality aftermarket replacement parts for all makes and models to keep you in compliance.