Moeller 033470-10
Threads into a compatible Yamaha-style tank withdrawal connection; it is not the hose-mounted female coupler.
Moeller Yamaha Fuel Connectors: Tank vs Engine Hose Ends
Yamaha-style outboard fuel fittings must match at both ends of the fuel line. Moeller supplies a 1/4-inch NPT male tank fitting, a 3/8-inch female hose connector used in specified Yamaha assemblies, and a separate large two-prong engine-side connector for certain newer-style systems. Choose by the original mating profile, not the Yamaha name alone.
Compare connector positions and hose sizes
Choose the fitting for the exact end of the fuel system. On narrow screens, scroll the comparison table horizontally.
| MPN | Component | Location | Connection size and style |
|---|---|---|---|
| 033470-10 | Male threaded tank fitting | At fuel-tank withdrawal port | ¼-inch male NPT |
| 033481-10 | Female fuel-line coupler | Hose at tank or engine side | ⅜-inch hose I.D. |
| 033482-10 | Female engine-side clip coupler | Hose at engine side | ⅜-inch hose I.D.; large two-prong clip |
Key fit distinction: A 1/4-inch NPT male tank thread is not a hose barb. Moeller 033481-10 is a 3/8-inch female connector used in certain Yamaha tank and engine fittings. 033482-10 is a different large two-prong engine-side connector, and Moeller lists it for specified Mercury/Yamaha 1998-and-newer-style systems. Do not assume those female fittings mate with the same engine port.
Replacement selection checklist
- Identify whether the failed component is screwed into the tank, attached to the hose at the tank side, or attached to the hose at the outboard engine side.
- Match the exact connector profile and latch style to the original mating half. Brand and approximate model year are not proof of fit.
- Measure the fuel-hose inside diameter and choose the corresponding 5/16-inch or 3/8-inch barb, or the correct 1/4-inch NPT threaded tank fitting.
- Inspect connector seals, retaining clips, damaged hose and any evidence of fuel leakage before installing a replacement.
- Use approved marine fuel hose and safe fuel-system practices, and verify every joint for leaks before operating the engine.
Find the matching replacement parts
These products are sold online through NewRVParts and ship from supplier warehouses. In-person viewing and pickup are not available.
Moeller 033481-10
Female hose connector for the corresponding Yamaha fitting; Moeller lists it at tank or engine side when the mating profile matches.
Moeller 033482-10
Separate large two-prong engine connector listed for specified Mercury/Yamaha 1998-and-newer-style applications, not every Yamaha system.
Related parts-reference guides
For another manufacturer's connector types, see Sierra marine fuel connector types. For complete hoses with a primer bulb, see our marine fuel-line assembly comparison. If you also need a tank, see the Moeller portable fuel tank reference.
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