Identify Moeller Outboard Fuel Connectors by Tank & Engine End

Outboard fuel-line fittings look similar, but the engine-end connector, tank-end connector and threaded tank withdrawal fitting perform different jobs. Matching the brand alone is not enough: the mating connector style, hose inside diameter, tank thread and original equipment configuration must also agree. This guide compares seven exact Moeller fuel connector part numbers carried by UsedRVParts to make the first identification step easier.

Know which part of the fuel line needs a fitting

Engine-end quick connectorsMoeller 033482-10, 033487-10 and 033497-10 are engine-end female fuel-line connectors for their respective specified applications. They attach to fuel hose and engage a suitable male fitting at the engine. The geometry varies between Mercury/Yamaha, Suzuki and Honda styles.
Tank-side connectors and fittings033486-10 and 033488-10 serve specified tank-side fuel connections. 033501-10 is a different component—a Honda-style male tank fitting with 1/4-inch NPT threads. It installs in a compatible tank outlet and should not be confused with a hose-end female coupler.

Moeller fuel connector identification chart

Moeller MPN Application family Connection type Hose or thread size
033481-10 Yamaha Female fuel-line connector; confirm end 3/8-in hose barb
033482-10 Mercury / Yamaha Engine-side female connector 3/8-in I.D. fuel hose
033486-10 Mercury Tank-side female connector 3/8-in I.D. fuel hose
033487-10 Suzuki Engine-side female connector 3/8-in hose barb
033488-10 Suzuki Tank-side hose connector Verify barb against fuel hose
033497-10 Honda Engine-side female connector 3/8-in I.D. fuel hose
033501-10 Honda Male tank fitting 1/4-in NPT tank threads

Moeller 033481-10 is a Yamaha-oriented 3/8-inch hose-barb female quick connector. Its exact end position and compatible male mating fitting should be confirmed against the original system before purchase. The specific 1998-and-newer and 2001-and-newer indications above apply only to the corresponding manufacturers' listed models, not to every engine of those years.

Do not connect fittings solely because both say “3/8 inch.” A 3/8-inch hose barb describes the required fuel-hose bore; it does not specify the quick-connector latch geometry. A 1/4-inch NPT tank thread is a completely different dimension. Match all of the connection details before assembly.

Mercury, Yamaha, Suzuki and Honda differences

The 033482-10 is identified for compatible Mercury/Yamaha engine ends with a large two-prong clip, while 033486-10 is intended for a compatible Mercury tank-end connection. They are not interchangeable by location.

For Suzuki, 033487-10 is an engine-end chrome-plated brass female fitting with a 3/8-inch barb; 033488-10 is a tank-side Suzuki fitting. Check the original connector and matching tank hardware to ensure the complete pair agrees.

For Honda, 033497-10 is an engine-side female 3/8-inch connector listed for selected 2001-and-later systems. 033501-10 has male 1/4-inch NPT threads for a compatible tank withdrawal port. These parts are installed at different points in the fuel circuit and are not interchangeable.

Five checks before replacing a portable marine fuel connector

  1. Identify the failed connection end. Determine whether the missing part belongs to the engine, the fuel hose or the fuel tank. Photograph or record the original fitting's full part number if possible.
  2. Confirm exact outboard application. Compare the engine manufacturer, production year, original connector shape and Moeller's exact application. Avoid assuming all outboards from one brand use one fitting style.
  3. Measure the fuel hose. A 3/8-inch barbed connector requires compatible marine fuel hose of the specified inside diameter. Follow the hose and fitting manufacturers' recommendations for clamps and materials.
  4. Check threads or clip shape. A 1/4-inch NPT tank fitting must match the tank port and approved thread-sealing arrangement. A two-prong quick connector must lock positively with the correct matching male connection.
  5. Install and check safely. Turn off the engine, eliminate ignition sources, use approved marine fuel-system parts and inspect for fuel leaks. Do not operate a leaking or insecure fuel connection. Have a qualified marine technician assess uncertain fittings.

Shop exact Moeller outboard fuel fittings

The cards below open the matching UsedRVParts.ca products. Check their condition and current availability. The store offers new and used parts; eligible used inventory can be viewed or picked up by appointment in Kelowna.

Related outboard fuel-system references

For complete hose assemblies and alternative connections, our Sierra connector guide and Sierra fuel-hose guide explain other product families. For portable fuel tanks and caps, see Moeller portable tank identification. Do not treat a different brand's fitting as a verified substitute without matching the exact connection.

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