
Kohler / Rehlko · Engine service in Garland, Texas
Command PRO EFI ECH900
Command PRO EFI ECH900 horizontal-shaft, air-cooled V-twin engine family.
Compare the base engine models
Find the engine. Confirm the specification.
These are base-model specifications from the manufacturer’s engine lineup. Shaft dimensions, mounting, exhaust and equipment-specific details must be checked against the full engine identification.


Kohler / Rehlko
ECH938
horizontal · gasoline
- Gross power
- 38 (28.3) hp (kW) @ 3600 rpm
- Displacement
- 999 (61.0) cc (cu in)

Kohler / Rehlko
ECH941
horizontal · gasoline
- Gross power
- 41 (30.6) hp (kW) @ 3600 rpm
- Displacement
- 999 (61.0) cc (cu in)
Engine features
- Four-cycle
- OHV
- Cast-iron cylinder liner
- Aluminum block
- Closed-loop EFI
- High-performance spark plugs
- Hydraulic valve lifters
- Large-capacity air, fuel and oil filters
- Clean-change oil filter
Kohler / Rehlko engine questions
My engine says Kohler. Can you still help?
Yes. Kohler Engines is now Rehlko. Send the complete model, specification and serial number from your existing label so we can identify the engine.
Can another engine with the same horsepower replace mine?
Horsepower alone does not establish compatibility. The shaft, mounting, controls, electrical connections and equipment application must be checked.
Should I bring the machine or just the engine?
Call first with the equipment details and symptoms. We can discuss access, what to bring and scheduling before you transport the machine or loose engine.