Cummins Inc. announced its 2013 engine lineup for refuse vehicles at WasteExpo in New Orleans on May 21. The company is offering a complete range of both clean diesel and natural gas engines.

Cummins said it has made improvements to all existing base engines for 2013 to achieve up to 2% better fuel economy compared with the 2012 model year engines. For 2013, Cummins will offer the refuse vehicle market two choices in clean diesel power – the ISX12 and ISL9.

The XPI fuel system, VGT Turbocharger, and Cummins aftertreatment system with diesel particulate filter (DPF) and selective catalytic reduction (SCR) deliver improved reliability, durability and fuel economy for 2013. All engines will share a new single electronic control module (ECM) that will manage both the engine and the aftertreatment system. In addition, these engines meet the 2013 U.S. Environmental Protection Agency (EPA) regulations as well as the 2014 EPA greenhouse gas (GHG) and U.S. Department of Transportation (DOT) fuel efficiency standards.

The 2013 ISX12’s ratings range from 320 hp to 385 hp and include modifications to the VGT Turbocharger for better reliability. Also, the ISX12 features high-efficiency water, fuel, and lube pumps to help reduce parasitic loss and improve fuel economy up to 2% when compared with the 2012 model-year engine. The ISX12 also provides customers with the options of front- and rear- engine power take-off (FEPTO and REPTO).

The 2013 ISL9’s ratings range from 260 hp to 380 hp. Heavy-duty features include as replaceable wet liners, roller followers, by-pass oil filtration, and targeted piston cooling. The addition of an air intake throttle for 2013 enhances the overall efficiency of the exhaust gas recirculation (EGR) system, leading to improved fuel economy of up to 2% when compared with the 2012 model year engine. In addition, the ISL9 will now feature NanoNet media in the fuel filter, which provides up to 10 times better protection for fuel injectors, according to Cummins.

Cummins Westport natural gas engines – the ISL G and ISX12 G – utilize the same base engine and key components as their diesel counterparts. They also feature Cummins Westport’s spark-ignited combustion technology with stoichiometric cooled exhaust gas recirculation (SEGR) and a maintenance-free three-way catalyst (TWC).

The ISL G is available with ratings from 250 hp to 320 hp and shares a full-skirted block with Cummins ISL9 diesel engine. Cummins Westport’s ISX12 G is based on Cummins ISX12 diesel, and offers ratings from 320 hp to 350 hp with up to 1450 lb-ft torque. Customers get a choice choice of automatic or manual transmission. Limited production began in April, with full production starting in August.

Both the ISX12 G and ISL G are EPA 2013 certified, and also meet the 2014 GHG and fuel efficiency standards. In addition, the ISX12 G and ISL G can operate on compressed natural gas (CNG), liquefied natural gas (LNG) or renewable natural gas (RNG).