Honda GX Series Engines & Parts

Honda Motor Company, founded in 1946 and headquartered in Tokyo, builds the GX series of commercial-grade 4-stroke gasoline engines through its Honda Power Equipment division in Alpharetta, Georgia. The GX line uses an overhead-valve design and powers pumps, generators, mowers, and other power equipment across construction, rental, and industrial applications. Northern Hydraulics supplies Honda GX series engines and parts, with cross-reference support for model-specific components such as mufflers, air filters, and carburetors.

Honda Product Lines & Series

The Honda GX series spans the catalog from compact single-cylinder units to large twin-cylinder engines. Single-cylinder models run from the GX120 and GX160 through the GX240, GX270, GX340, and GX390; V-twin GX610, GX620, GX630, GX670, and GX690 cover the high-displacement end. Vertical-shaft GXV models (GXV160, GXV340, GXV390) serve mower and deck-drive applications, while the iGX series (iGX340, iGX390) adds electronic engine control.

• GX Series single-cylinder and V-twin commercial engines
• GXV Series vertical-shaft engines
• iGX Series electronically controlled engines
• Mufflers, air filters, carburetors, spark plugs, gaskets, and recoil starters

Cross-Referencing Honda Parts

Honda GX parts are model-specific and frequently serial-number specific, so a muffler, air filter, carburetor, or recoil starter must match the exact engine model. Larger-displacement engines such as the GX340, GX390, GX630, and GX690 share some muffler and filter compatibility within their size categories, but fit should always be verified by model before ordering. When a Honda part number is hard to source, or you only have the number stamped on the old component, we match it to the correct GX replacement or equivalent part. Send the engine model and the part number and we will confirm the fit. Request a Honda parts cross-reference to get the correct replacement.