EXHAUST AFTERTREATMENT SYSTEM

Cut emissions, not performance

The Mack exhaust aftertreatment system (EATS) is built to protect the environment without sacrificing performance or reliability. From selective catalytic reduction to diesel particulate filters and more, Mack EATS does right by the planet and your business.

New Exhaust Aftertreatment System

Meets EPA '27 NOx standards with Selective Catalytic Reduction (SCR) and Diesel Particulate Filter (DPF) combined in one box. Cuts NOx emissions to near-zero, with no new maintenance requirements. Compact design integrates seamlessly while supporting improved fuel economy by up to 3%.

Engineered for cleaner operations

Mack's next-generation exhaust aftertreatment system combines advanced emissions control in a compact package. Delivering near-zero emissions, it maximizes payloads while meeting environmental standards.

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The Close-Coupled Selective Catalyst Reduction reduces NOx emissions with dual-catalyst precision for near-zero performance.
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DEF Dosing Valves optimize urea injection for maximum NOx reduction and extended regen intervals.
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Diesel Oxidation Catalyst captures particulates and oxidizes hydrocarbons for cleaner exhaust.
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6- and 13-inch electric heaters enable rapid cold-start emissions reduction and eliminate fuel-assisted regen devices.
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The exhaust pipe and mixing chamber ensures proper flow and even distribution for optimal system performance.
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The Main Selective Catalyst Reduction (SCR) achieves near-zero NOx emissions while maintaining efficiency and performance.
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Responsibility and
productivity, all in one.

Space saving

The Mack aftertreatment system is smartly designed to get more done with less by reducing packaging space.

Flexible

The Mack exhaust aftertreatment system is built with serviceability and flexibility in mind for multiple truck configurations and body builds, no matter what you’re hauling.

Stay on the road longer

Spend little to no time at all pulled over and waiting on your truck to regen, so you can stay out on the road and making money.

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