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CH-74 Engine

The CH-74 is an engine rated at 2900 rpm. It powers generator sets from Kohler, including the 6VSG-24V, 6VSG-36V and 6VSG-48V.

Also known as: CH-74

2900 rpm
Rated speed
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Engine specifications

Rated speed2900 rpm

Generator sets powered by this engine

3
Kohler 6VSG-24VKohler 6VSG-36VKohler 6VSG-48V

Common problems

1
  • Gas fuel leaks can cause an explosion.
    Fix: Check the LP vapor gas or natural gas fuel system for leakage by using a soap and water solution with the fuel system test pressurized to 6–8 ounces per square inch (10–14 inches water column). Do not use a soap solution containing either ammonia or chlorine because both prevent bubble formation. A successful test depends on the ability of the solution to bubble.

Compiled from service & troubleshooting documentation across every generator set that uses the CH-74.

Common questions

Which generators use the CH-74 engine?

The CH-74 powers 3 generator set(s), including Kohler 6VSG-24V, Kohler 6VSG-36V, Kohler 6VSG-48V.

What is a common problem with the CH-74 engine?

A commonly reported issue on generators using the CH-74 is: Gas fuel leaks can cause an explosion.. Fix: Check the LP vapor gas or natural gas fuel system for leakage by using a soap and water solution with the fuel system test pressurized to 6–8 ounces per square inch (10–14 inches water column). Do not use a soap solution containing either ammonia or chlorine because both prevent bubble formation. A successful test depends on the ability of the solution to bubble..