B4.5

  • It is an in-line 4-cylinder, 16-valve, 4-stroke 4.5-liter diesel engine
  • Available for commercial and recreational propulsion applications
  • Based on the proven Cummins B4.5L industrial engine
  • The B4.5L complies with U.S. EPA Tier 3 emissions regulations without the use of aftertreatment
  • Backed by Cummins warranty
Configuration In-line, 4 cylinder, 4-stroke diesel
Aspiration Turbocharged/ Aftercooled
Displacement 4.5L (272 in3)
Bore & Stroke 107 X 124 mm (4.21 x 4.88 in)
Fuel System High Pressure Common Rail (HPCR)
Width 861.8 mm
Length 1112.1 mm
Height 877 mm
Weight 545 kg
  kW BHP RPM Rated
L/hr
(Gal/hr)
ISO Avg
L/hr
(Gal/hr)
IMO EPA EU
Heavy duty 112 150 2500 31.8 (8.4) 21.3 (5.6) - 3 5
Intermittent 172 230 2600 46.7 (12.3) 32.0 (8.5) 2 3 -
Light duty 186 250 2600 TBD TBD 2 3 -
kW BHP RPM Rated
L/hr
(Gal/hr)
ISO Avg
L/hr
(Gal/hr)
IMO EPA EU
High Output 172 230 2600 46.7 (12.3) 32.0 (8.5) 2 3 -
186 250 250 2600 TBD 2 3 -
  kW BHP RPM Rated
L/hr
(Gal/hr)
ISO Avg
L/hr
(Gal/hr)
IMO EPA EU
Prime power at 50 Hz 91 122 1500 24.6 (6.5) 12.2 (3.2) - - 5
112 150 1500 29.9 (7.9) 14.7 (3.9) - - 5
Prime power at 60 Hz 76 102 1800 21.9 (5.8) 11.1 (2.9) - 3 -
91 122 1800 26.9 (7.1) 12.9 (3.4) - 3 -
112 150 1800 29.9 (7.9) 14.7 (3.9) - 3 -
129 173 1800 33.7 (8.9) 16.7 (4.4) - 3 -