Products
80-115hp (36-85kW)
QSB3.9Pump Engines
TypeInline 4 cylinders, water-cooled, four strokes, electronically-controlled high pressure injection
Bore×stroke (mm)102×120
Displacement(L)3.9
Aspirationcharged, inter-cooled
Maximum power(Hp/kw)115/85
Maximum torque(N·m)520
Control systemECM
Fuel systemHigh pressure common rail
Emission certificationNS III/EU Stage IIIA
Dry weight (Kg)331
Length×Width×Height(mm)778×753×882
  • Product Advantages
  • Product Portfolio
Product Advantages

Applications: Fire fighting, Municipal Services, Petrochemical, Agriculture, etc.

  • Advanced design and high-quality manufacturing, adaptable to severe operating conditions, high strength, and reliable operation under heavy load.

  • The integration design of cylinder block and cylinder head prevents the engine from water and oil leakage. The parts are about 40% less than engines of the same type, and the failure rate is greatly reduced.

  • Forged steel camshaft and crankshaft, high-strength cylinder, multiple parts cast on the cylinder block, high rigidity, high pressure resistance, good reliability, and long service life.

  • Plateau honing cross hatch cylinder bore, perfect geometric structure that effectively prevents oil leakage, advanced technologies such as new piston ring assembly and gasket curling shield that reduce oil loss.

  • Holset supercharger with integral wastegate offers low-speed response and dynamic performance.

  • The three-stage filter ensures balanced particle dispersion, protects main components of the fuel system and maximizes engine life.

  • The electronic control system intelligently switches to operation modes according to the environment and operating conditions. It has self-diagnosis, alarm and remote monitoring functions.

  • The mature intelligent electronic control technology improves the overall performance of the engine. The engine specifications can be customized according to application requirements.


Product Portfolio
Model

Rated power output

(kW@RPM)

CylindersDisplacement (L)Weight(Kg)Fuel systemAspiration
QSB3.9-P8036@290043.9281Electronic control high pressure common railcharged, inter-cooled
QSB3.9-P11060@290043.9281Electronic control high pressure common railcharged, inter-cooled
QSB3.9-P11585@290043.9281Electronic control high pressure common railcharged, inter-cooled