Buyer guide
Match the S4Q2 configuration, not just its family
Mitsubishi documents the S4Q2 as an engine family, while an installed engine has a more specific build. Check the full specification code, rated or governed speed and the existing controls. A family-level power chart is not a rating guarantee for the supplied assembly.
Compare the output connection, cooling, mounts and accessory layout with the actual installation. Some documented S4Q2 configurations have marine references, but that does not establish that this listing is a marine-ready package. Confirm package contents with info@nyengines.com.
What to check before ordering
- Photograph the S4Q2 plate and full specification code.
- Confirm required speed, controls and output connection.
- Check included cooling and accessory components for the intended installation.