Honda Engine Type Identification

Honda Engines use a standard model naming convention:

Finding the engine model number:

To find the model number, look for a model number sticker on the engine. All Honda engine model numbers start with the letter "G," such as "G100", "GX160", or "GXV160."This is the base engine model.

The engine model and serial number should be adequate for most of your needs.

Finding the engine type code:

The engine type code is stamped into the side of the engine, usually close to the serial number. Engine type codes may be up to 4 characters.

If a code is less than 4 characters, you may see asterisks as placeholders (i.e. an engine stamped with QX** is a QX type engine.)

Finding the engine serial number: 

The engine serial number is stamped into the side of the engine. All Honda engine serial numbers have a 4 or 5 letter prefix followed by a 7 digit number.

Author: David Schatz

David Schatz is the founder of DHS Equipment and a technical content expert in light construction equipment, small engines, and professional-grade replacement parts. With more than 30 years of hands-on experience servicing concrete saws, generators, water pumps, and plate compactors, he helps contractors, rental fleets, and serious DIY users keep their equipment running safely and efficiently.

Through practical, no-nonsense articles, step-by-step guides, and maintenance tips, David focuses on real-world troubleshooting, small engine repair, and clear recommendations on OEM and high-quality aftermarket replacement components that reduce downtime, extend equipment life, and improve job site productivity.