QSF2.8 Engine

Cummins introduces its QSF2.8 engine, the smallest engine released by the company for off-highway applications.

Cummins Qsf 2 8 Fuel System Si 10700640
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Cummins Inc. revealed its QSF2.8 engine with 49 to 74 hp (37 to 55 kW) output at the INTERMAT show in Paris. The QSF2.8 is the smallest engine to be introduced by Cummins for the off-highway industry.

  • Features full-authority electronic controls driving a High Pressure Common Rail (HPCR) fuel system
  • Four-cylinder, 2.8-liter design featuring fully passive Cummins Compact Catalyst aftertreatment system
  • Meets Tier 4 Final and Stage IIIB emissions regulations 
  • Electronically driven HPCR system enables multiple fuel injection events with over 1,600 bar (23,000 psi) pressure capability
  • Provides cleaner combustion and improved fuel efficiency
  • Uses Cummins Compact Catalyst aftertreatment to meet Tier 4 regulations
  • Without catalyst, the same base engine meets all other emissions requirements, including Tier 3 and Stage IIIA
  • Features small installation envelope
  • Offers lighter weight, just 507 lbs. (230 kg), due to sculpted design high-strength cast-iron block and use of composite material for features such as valve cover  
  • Incorporates rear gear train, providing mounting stiffness and lower gear noise
  • Delivers peak torque of 118 lb-ft (160 N•m), with over 80% of this available at 900 rpm 
  • Wastegate turbocharger ensures rapid engine response to load demands at all engine speeds
  • Electronic Control Module (ECM) is remote mounted for easy access to provide rapid plug-in diagnostics and operational data downloads
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