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Kohler KDI 443 Engine

The Kohler KDI 443 is a 3.6 L 4-cylinder atmo engine rated at 1500 rpm, producing up to 11.5 kW. It powers generator sets from Kohler, including the KDW 1404. It holds 2.5 L (0.7 gal) of oil.

Also known as: KOHLER KDI 443

3.6 L
Displacement
4
Cylinders
1500 rpm
Rated speed
11 kW
Gross power
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Engine specifications

Oil capacity2.5 L
Displacement3.6 L
Cylinders4
AspirationAtmo
Rated speed1500 rpm
Gross power11 kW

Common problems

13
  • The engine rpms suddenly increase and decrease
    Fix: THE ENGINE MUST BE STOPPED IMMEDIATELY
  • The engine does not start
    Cause: Sulphated battery terminals corroded, Battery voltage too low, Low fuel level, Frozen fuel, Clogged fuel filter, Air suction in fuel system, Clogged air filter, Clogged pipes, Open fuse, Intake or exhaust system clogged
    Fix: Clean the battery terminals, Recharge the battery or replace it, Refuel, Contact KOHLER authorised workshops, Replace with a new filter, Contact KOHLER authorised workshops, Replace with a new filter, Contact KOHLER authorised workshops, Clean the tank and refuel with quality fuel, Replace the engine oil; if the problem persists, contact KOHLER authorised workshops, Replace with a new fuse; if the problem persists, contact KOHLER authorised workshops
  • The colour of the exhaust fumes suddenly darkens
    Fix: THE ENGINE MUST BE STOPPED IMMEDIATELY
  • Slow acceleration
    Cause: Clogged fuel filter
    Fix: Replace the fuel filter
  • RPM instability at idle speed
    Cause: Clogged fuel pipes
    Fix: Contact KOHLER authorised workshops
  • Poor quality fuel
    Fix: Clean the tank and refuel with quality fuel
  • Low idle speed
    Cause: Clogged fuel pipes
    Fix: Contact KOHLER authorised workshops
  • Excessive fuel consumption
    Cause: High oil sump level
    Fix: Replace the engine oil; if the problem persists, contact KOHLER authorised workshops
  • Engine starts but stops
    Cause: Inefficient electrical connections, Sulphated battery terminals, Clogged fuel filter, Clogged fuel pipes
    Fix: Clean the electrical contacts; if the problem persists, contact KOHLER authorised workshops, Clean the battery terminals, Replace with a new filter and clean the tank, Contact KOHLER authorised workshops
  • Engine lost its initial performance
    Cause: Clogged air filter, Clogged fuel pipes
    Fix: Replace with a new filter, Contact KOHLER authorised workshops
  • Engine jerking
    Cause: Clogged fuel pipes
    Fix: Contact KOHLER authorised workshops
  • Blue smoke
    Cause: High oil sump level
    Fix: Replace the engine oil; if the problem persists, contact KOHLER authorised workshops
  • A sudden and unusual noise is heard
    Fix: THE ENGINE MUST BE STOPPED IMMEDIATELY

Compiled from service & troubleshooting documentation across every generator set that uses the Kohler KDI 443.

Maintenance schedule

ItemSpecCapacityPart #Interval
Fuel filter—
Oil filter—
Belt—
Coolant—
Oil—
Spark plug—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the oil capacity of the Kohler KDI 443?

The Kohler KDI 443 engine has an oil capacity of 2.5 liters.

What is the displacement of the Kohler KDI 443?

The Kohler KDI 443 has a displacement of 3.6 liters with 4 cylinders.

Which generators use the Kohler KDI 443 engine?

The Kohler KDI 443 powers 1 generator set(s), including Kohler KDW 1404.

What is a common problem with the Kohler KDI 443 engine?

A commonly reported issue on generators using the Kohler KDI 443 is: The engine rpms suddenly increase and decrease. Fix: THE ENGINE MUST BE STOPPED IMMEDIATELY.