J Series Industrial Engines

The Isuzu J Series is a multi-award winning 3.0 litre engine, one of the most utilised commercial series of engines in the world. Available in a variety of forms from the simple mechanical injected models to the high end common rail 4JJ1 found in the very latest Isuzu powered equipment.

Engine Overview


No. of Cylinders

Injection System

Intake System

Displacement [L]

Bore [mm]

Stroke [mm]

Gear Case PTO

Flywheel Housing


Voltage [V]

Starter Capacity [kW]

Alternator Capacity [A]

Applied Regulation

Dry Weight [kg]

Variable & Fixed



Naturally Aspirated, Turbo Charge Air Cooled Turbo

2.80 – 3.10

95.4 – 105.0

104.9 – 125.0

Available on specific models

SAE #3, SAE #4

SAE 10", SAE 11.5”


2.2 – 2.5

35.0 – 110.0

Tier-1, Tier-2, Tier-3

245.0 – 320.0

Key Features


Application Flexibility

The versatile Isuzu J Series engines can be adapted to suit a variety of applications including: Agricultural, General Industry, Hydraulic Pumping, Irrigation, Refrigeration and Water Pumping.



Isuzu offers a variety of kit-form accessories for J Series engines that include: Cooling System, Air Cleaning, Exhaust Systems, Auxiliary Couplings, Engines Mountings, Engine Control Systems and Skid Bases.


Service & Parts Network

Isuzu Power Solutions are supported by a national network of Dealers with technicians trained to understand Isuzu engines and their components. This is coupled by a state-of-the-art parts warehouse and distribution complex.


Ready to Work

The J Series engine range is available as a Made to Stock (MTS) unit. MTS power units are supplied ready to work with exhausts, air systems, control units and other accessories, which means you can switch them on and put them straight to work.