Cummins 2013 Engines
Cummins has announced its 2013 engine lineup, said to be ideal for vocational applications with demanding workloads and tough-duty cycles. Included here are its clean diesel ISX12 and ISL9, as well as the Cummins Westport ISX12 G natural gas engine.
The 2013 on-highway diesel lineup, including the ISX12 and ISL9, will offer customers up to 2% better fuel economy compared to 2012 model-year engines, Cummins says. There are no major hardware changes. Both diesels are certified to the 2013 U.S. Environmental Protection Agency (EPA) regulations meeting the greenhouse gas (GHG) and fuel efficiency rules that take effect in 2014.
The compact Cummins ISX12, with ratings from 310 to 425 hp, aims at many applications from LTL and daycab trucks to mixers, dump trucks, and refuse haulers. It offers over 800 lb ft of clutch engagement torque, SmartTorque ratings that deliver an additional 200 lb-ft of torque in the top two gears, vocational ratings that provide additional torque in the lower gears, and options including front- and rear-mounted PTOs.
With heavy-duty features such as replaceable wet liners, roller followers, by-pass oil filtration and targeted piston cooling, the 2013 ISL9 delivers ratings from 260 hp to 380 hp combined with what Cummins calls "the highest power density of any engine in its class."
Cummins Westport natural gas engines, the ISL G and ISX12 G, use the same base engine and key components as their diesel counterparts. They also feature proprietary spark-ignited combustion technology with Stoichiometric cooled exhaust gas recirculation (SEGR) and a maintenance-free three-way catalyst. The ISL G, certified to 2013 EPA standards, sports ratings from 250 to 320 hp.
The Cummins Westport ISX12 G is based on Cummins ISX12 diesel and will offer ratings from 320 to 400 hp and up to 1450 lb ft torque. It will be EPA 2013 certified when available in limited production in April.
Both the ISX12 G and the ISL G operate on compressed natural gas, liquefied natural gas or biomethane, making them the natural choice for vocational natural gas applications.
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