Tier 4 Final Engine Information

Cummins QSB4.5 (4.5L) 173-hp Peak torque of 520 ft-lbs at 1500 rpm Tier 4 Final electronic turbocharged, charge-air after-cooled 4-cylinder diesel engine. Standard in the following models: • X-180S* • X-200S* • X-220S* • X-250S* & X-250M* • X-280S* & X-280M* * Optional engine in the above models: Cummins QSB6.7 (6.7L) 173-hp Cummins - Tier4 Final Cummins QSF3.8 (3.8L) 120-hp Peak torque of 360 ft-lbs at 1600 rpm Tier 4 Final electronic turbocharged, charge-air after-cooled 4-cylinder diesel engine. Standard in the following models: • X-160 • X-175 • XH-180 A few words about the Cummins engines: EcoFit Ultra-Low Emission System utilize innovative after-treatment technologies designed to improve equipment performance. No “DPFs”! All Taylor Lift Trucks achieve Tier 4 Final Compliance without the need for (DPF) Diesel Particular Filters… • All Taylor Tier 4 Final diesel engine solutions require (DEF) Diesel Exhaust Fluid. • All Cummins Tier 4 Final solutions feature (SCR), (CEGR), and (DOC). • All Volvo Penta Tier 4 Final solutions feature (SCR) and (CEGR). For an explanation of these features, please refer to the “What is?” section on the following page. For even more information contact your local dealer representative. What is SCR? (SCR) Selective Catalytic Reduction is an advanced active emissions control technology system that injects a liquid-reduction agent through a special catalyst into the exhaust stream of a diesel engine. The reduction source is automotive-grade urea (DEF). What is DEF? (DEF) Diesel Exhaust Fluid is a water-and-urea solution that’s sprayed into the exhaust stream ahead of the catalyst in the SCR system. DEF helps convert oxides of nitrogen (NOx) in the exhaust into harmless nitrogen and water vapor. What is DOC? (DOC) Diesel Oxidation Catalysts are exhaust after-treatment devices that reduce emissions from diesel fueled vehicles and equipment. DOCs generally consist of a precious metal coated flow-through honeycomb structure contained in a stainless steel housing. The exhaust has a catalytic reaction that breaks down the pollutants. What is CEGR? (CEGR) Cooled Exhaust Gas Recirculation is a nitrogen oxide (NOx) emissions reduction technique used in diesel engines. CEGR works by recirculating a portion of the engine’s exhaust stream through an air-to- water cooler, then back into the combustion chambers. The cooled gases reduce peak temperatures and NOx formation.

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