Serves the Commercial Small Fleet Market of 10 – 50 Vehicles

Eaton & Westport Offer Automated Transmission with Natural Gas Engine

March 13, 2014

Eaton and Cummins Westport, a joint-venture company of Cummins Inc. and Westport Innovations announced an integrated powertrain package for the Cummins Westport ISX12 G natural gas engine that will provide customers with the first automated transmission to be paired with a spark-ignited natural gas engine in the North American market. The powertrain will combine an Eaton UltraShift PLUS automated transmission with the Cummins Westport ISX12 G engine.

The powertrain will combine an Eaton UltraShift PLUS automated transmission with the Cummins Westport ISX12 G engine.
The powertrain will combine an Eaton UltraShift PLUS automated transmission with the Cummins Westport ISX12 G engine.

The UltraShift PLUS automated transmission offers maximum power capacity, superior acceleration and low-speed maneuverability. Paired with the ISX12 G, the new powertrain package will be available for limited application release for linehaul and regional haul in mid-2014.

The Cummins Westport ISX12 G natural gas engine with heavy-duty durability is based on the Cummins ISX12 diesel engine, and operates on 100 percent natural gas, which can be carried on the vehicle in either compressed (CNG) or liquefied (LNG) form. Ideally suited for regional haul applications, the ISX12 G has a robust power band at 1500-1800 rpm, and delivers excellent responsiveness, with peak torque at 1200 rpm. This industry-leading heavy-duty natural gas engine is available with horsepower of 320 hp to 400 hp (239-298 kW) with 1450 lb-ft (1966 N•m) peak torque.

The powertrain package benefits include:

•Intelligent shift selection software for performance and efficiency improvements

•Better launch and shift decisions through grade sensing, weight computation and driver throttle commands

•Hill Start Aid, which prevents rollbacks when engaged, reduces risk and simplifies operations for even the most inexperienced drivers

•Tailored shift logic enables efficient operation and enhances braking performance

The Cummins Westport ISX12 G engine can now be paired with either the UltraShift PLUS automated transmission or the Eaton Fuller Advantage Series manual transmission. Customers can rely on the proven service support offered today through Eaton's unparalleled Roadranger team of sales and service professionals and Cummins extensive distributor and dealer service and support network.

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