Introducing Mack’s next-generation exhaust aftertreatment system: ClearTech™ One. Its sophisticated new design combines our Selective Catalytic Reduction (SCR) technology and Diesel Particulate Filter (DPF) to deliver near-zero emissions and low maintenance in a lighter, more compact unit.
ClearTech™ One combines our Selective Catalytic Reduction (SCR) technology and Diesel Particulate Filter (DPF) in a simple and compact configuration.
ClearTech™ One was developed using sophisticated CFD analysis to determine optimal internal exhaust flow and DEF mixing performance. It intelligently uses waste heat to keep both the diesel particulate filter (DPF) and selective catalytic reduction (SCR) working at top efficiency, reducing the need for active or parked regen events. The DPF is designed as an easy-to-use cartridge and can be serviced by simply removing a few clamps and fasteners for quick maintenance.
ClearTech™ One’s compact design saves space to increase flexibility and simplify chassis conﬁgurations. That means it can meet the unique needs of your application and mount to your truck body easier than ever.
This solution is 17 pounds lighter than our previous ClearTech™ aftertreatment system. Its durable and lightweight design is more compact, which beneﬁts chassis component packaging so you carry more payload for more revenue. Less is more.
ClearTech™ One offers a clean solution for your truck. It’s a thermally efﬁcient package that boasts near-zero emissions to efﬁciently meet today’s strict environmental standards.
This solution delivers up to 11 extra inches of space on the frame rail, which is important for short wheelbase applications like single axle daycab tractors, multi-axle dumps and snowplows.
Greater than 6 mpg Less than 39L/100km
Greater than 5 mpg Less than 50L/100km
Less than 5 mpg Greater than 50L/100km
Diesel Particle Filter (DPF) - Clean
Diesel Particle Filter (DPF) Ignition Electrode and Nozzle
Aftertreatment Hydrocarbon Injector (AHI)
MY 2011 to 2012 (April) clean AHI nozzle.
MY 2012 (May) and newer replace AHI nozzle and data reset.
DEF, Pump and Tank Filler Neck Filter
Drain DEF tank, replace DEF pump main filter, clean DEF tank neck filter.
The Granite’s lightweight chassis can carry heavy loads while staying nimble, and its Mack® MP® engine is powerful and fuel-efficient, creating an unflinching truck built with true grit.