About the Suzuki GS550
From the original 1977 four to later E, L and sporting variants: choose parts around the motorcycle you own.
Suzuki introduced the GS550 in 1977 with a 549cc air-cooled, four-stroke DOHC four-cylinder engine and a six-speed transmission. The cast-wheel GS550E followed in 1978. Later suffixes and revisions expanded the family, so a GS550 badge is a starting point for identification rather than a complete parts specification.
Which GS550 are you repairing?
A GS550 carburetor rebuild starts with the complete model and carburetor assembly. Early GS550 kits cover different applications from the kits for 1980–1982 E and L models. Later engine gaskets, fork seals and brake parts have their own boundaries. Use the comparison below to reach the right model collection, then identify the actual assembly if the engine, forks or brakes have been changed.
Compare before orderingGS550 repair parts by model and year
These years apply to the linked parts. They are not complete motorcycle production ranges or confirmation that other parts interchange.
| Model | Repair part | Listed years | Before ordering |
|---|---|---|---|
| GS550 | Carburetor rebuild kit | 1977–1979 | The base GS550 entry does not confirm an E or L application. |
| GS550E | Carburetor rebuild kit | 1980–1982 | Later E engine and fork products use separate applications. |
| GS550L | Rear drum brake shoes | 1983, 1985–1986 | Earlier rear pad applications concern a disc brake; 1984 remains unconfirmed here. |
| GS550MZ | Carburetor slide diaphragm | 1982 | Compare the diaphragm separately from the bowl gasket and rebuild kit. |
| GS550T | Rear master-cylinder kit | 1981 | A rear hydraulic kit does not service the front master cylinder. |
| GS550ES | Front master-cylinder kit | 1984–1986 | This ES kit does not confirm a 1983 application. |
| GS550EF | Engine gasket set | 1984–1986 | EF is retained as its own designation. |
Choose a model from the table, or browse the wider Suzuki GS parts range.
Identify your motorcycle before orderingGS550 identification checklist
Use the motorcycle’s markings, model-year paperwork and fitted components together. This checklist does not assign frame or engine serial ranges.
| Check | What to confirm |
|---|---|
| Complete designation | Keep E, EF, ES, L, MZ or T in the model name; compare the matching child collection. |
| Frame and engine | Record both identifiers. A replacement engine needs its own application check. |
| Carburetor assembly | Photograph body markings and the removed gasket or diaphragm before ordering. |
| Chassis equipment | Compare the fitted fork, rear brake type and caliper markings, especially on modified bikes. |
Contact PartsNMore with the full model, year, frame and engine markings, and photos of the part being repaired.