are made by Mahle. Emissions controls include exhaust gas recirculation, Denoxtronic-based selective catalytic reduction (SCR) from Bosch, and a DPF. Output was originally and . but shortly after production started, Ford announced that it made an update to the engine. The new engine control software makes the engine capable of at 2,800 rpm and at 1,600 rpm while achieving better fuel economy and without any physical changes to the engine. The 2015 engines are rated at and . Ford claimed the bump in horsepower is from a new turbocharger, new injector nozzles, and exhaust improvements. For 2017, the torque had risen to at 1800 rpm, while horsepower remained the same. To compete with the Duramax and Cummins engines from GM and Ram, Ford increased output for the 2018 model year to . Previously, the Duramax motor had a gain over the Power Stroke in 2017, and the Cummins engine for 2018 would have had a torque gain over the Power Stroke if the Power Stroke's output hadn't been increased for 2018. The engine is also available for Blue Bird Vision school buses. As of 2020, the Power Stroke's output was increased to 475 hp at 2600 rpm and 1050 lb-ft at 1600 rpm, becoming the best-in-class diesel in horsepower. Key specifications Diesel particulate filter Valve train: OHV 4-valve Turbo configuration: 'GT32 SST (single sequential turbocharger)' --single turbine and dual-sided compressor Fuel injection system: High-pressure common rail, Bosch CP4 injection pump, piezo electric injectors 2015–2016 3.2 Power Stroke The 3.2 L Power Stroke is an inline-five engine that debuted in the U.S.-spec Transit for model year 2015. The engine is a modified version of the Ford Duratorq 3.2 L diesel engine that has been adapted to meet emissions in the United States. To aid in economy, emissions, and reduce NVH, it has a high pressure common rail fuel injection system and piezo injectors that can spray up to five different injections per compression event. It has a water cooled EGR system to reduce the temperature of the exhaust gas before being recirculated through the intake. A unique feature to the emissions system is that the diesel oxidation catalyst (DOC) and the DPF have been combined into one singular unit as opposed to the traditional two separate units. Exhaust treatment continues with SCR which is done by the injection of diesel exhaust fluid in the exhaust to reduce NOx. The engine features