Generator sets can be tuned with a power unit however it is imperative to mention that generator engines use a fuel pump distinct to generator applications with HP ratings for prime, continuous, or standby power. Normally, industrial power units possess a fuel pump not rated for a fixed RPM application. Governors on generator engines are rated for a distinct duty cycle to sustain fixed RPM for clean electricity generation. Please Note: Units may be converted for a generator but we do not perform that work here.
More About Component Build Power Units:
Long block and extended long block assemblies we offer are considered ‘component builds’. New component build power units are engine assemblies built back to popular configurations using roughly 90% OEM parts, and 10% Aftermarket when available.
Isuzu Power Units Gallery
New Component Build Power Units include limited rebuilt and/or remanufactured components when needed but frequently they are non-critical wear parts such as aftercoolers, water inlet & outlet connections, exhaust manifolds, gears, gear housings, etc. Each build cycle we perform is different and follows compliance emissions/rebuilding standards governing re-use guidelines.
Isuzu Power Unit Packages:
[1] 4JB1-P Pump Application
✓ Power - 45 kW or 60 HP |
✓ Mechanical Governor |
✓ In-line fuel pump |
✓ Naturally Aspirated |
✓ Water Cooled |
✓ Rated up to 3000 RPM |
✓ Radiator Packaged Separately |
✓ Not Skid Mounted |
✓ Brackets Not Included |
[2] 4JB1T-P Pump Application
✓ Power - 62 kW or 83 HP |
✓ Mechanical Governor |
✓ In-line fuel pump |
✓ Turbocharged |
✓ Water Cooled |
✓ Rated up to 3000 RPM |
✓ Radiator Packaged Separately |
✓ Not Skid Mounted |
✓ Brackets Not Included |
[3] 4JB1-C Pump Application or Air Compressor Application
✓ Power - 45 kW or 60 HP |
✓ Mechanical Governor |
✓ VE Rotary Pump |
✓ Naturally Aspirated |
✓ Water Cooled |
✓ Rated up to 3000 RPM |
✓ Radiator Packaged Separately |
✓ Not Skid Mounted |
✓ Brackets Not Included |
[4] 4JB1T-C - Pump Application or Air Compressor Application
✓ Power - 62 kW or 83 HP |
✓ Mechanical Governor |
✓ VE Rotary Pump |
✓ Turbocharged |
✓ Water Cooled |
✓ Rated up to 3000 RPM |
✓ Radiator Packaged Separately |
✓ Not Skid Mounted |
✓ Brackets Not Included |
[5] Complete Power Unit 4JB1T-C - Pump Application or Air Compressor Application
✓ Power - 62 kW or 83 HP |
✓ Mechanical Governor |
✓ VE Rotary Pump |
✓ Turbocharged |
✓ Water Cooled |
✓ Rated up to 3000 RPM |
✓ Radiator and Tubing Mounted |
✓ Control Panel, Skid Mounted |
✓ Some Units include PTO |
* Parts May Vary Slightly Per Application
General Parts List:
✓ Block | ✓ Cold Start Aid |
✓ Cylinder Head | ✓ Fan |
✓ Camshaft and Lifters | ✓ Shut Down Solenoid (Mechanical Governors Only) |
✓ Crankshaft | ✓ Oil Pan |
✓ Connecting Rods | ✓ Intake and Exhaust Manifolds |
✓ Rocker Assemblies | ✓ Housings (Front and Rear) |
✓ Gaskets, Liners, Rings, Seals, Wrist Pins, Bearings | ✓ Brackets and Pulleys |
✓ Inline or Rotary Fuel Pump | ✓ Fuel Transfer Pump (Inline Setup or Rotary) |
✓ Speed Sensor, Actuator, Controller | ✓ Turbocharger (High Mount Rear Out) |
✓ Radiator (With fan guard and front guard, ships separately from Engine) |
✓ Starter 12 Volt |
✓ Connecting Pipes, Clips, Belt, Oil Filter Spanner, Valve Clearance Gauge for Radiator |
✓ Alternator 12 Volt |
✓ Air Cleaner | ✓ Flywheel/Flywheel Housing (SAE #3, SAE #4 When available) |
✓ Oil Pump and Water Pump | ✓ Some units ARE NOT Skid Mounted |
✓ Oil Cooler | ✓ No Core Charge |
✓ Oil Filters | ✓ Run Tested Before Shipment |
✓ Air Filters | ✓ Standard 12 Months Parts Replacement Warranty |
✓ Fuel Filters | ✓1 or 2 Year Parts/Labor Extended Warranties Available |
Isuzu Power Unit Specs:
Weight: | 524 lbs (Engine Only) |
Configuration: | Inline 4 Cylinder (3.86 L) |
Displacement: | 2.8 Liters, 169 cu in |
Horsepower: | 60 HP - 80 HP @ 3000 RPM |
Torque: | 132 - 180 ft/lbs @ 2200 RPM |
Type: | 4 Cylinder |
Fuel System: | Direct Injection |

Give us a call today at 844-340-4114 for immediate sales and support for the Cummins 4BT, Cummins 6BT or CAT 3306. If you have any questions check out our FAQ Page. We are always ready to help or just listen to your crazy off-roading adventures!