Johnson and Evinrude outboards can use different mechanical fuel pumps even when the engine horsepower looks the same. The ARCO FP001, FP002, FP003 and FP004 replacement assemblies are distinct part numbers. Use the original pump number and your engine's full model identification to find the right one.

Choose by engine family, then verify the original number

Small 6–15 HP outboardsStart by checking FP002 or FP003. Their manufacturer-listed year ranges overlap on 9.9 and 15 HP engines, so horsepower and year alone cannot settle the choice.
Other Johnson/Evinrude configurationsFP004 covers selected 20–35 HP engines, while FP001 is listed for a broader group of two-cylinder, three-cylinder and V4 models. Confirm the original part reference before ordering.

ARCO fuel pump reference chart

The engine ranges and replacement numbers below are drawn from ARCO's individual FP-series product information. An engine can fall within a general range yet use a different pump: use the model-specific parts diagram to establish the correct original pump number.

ARCO MPN Manufacturer-listed applications Selected OMC original numbers Sierra reference
ARCO FP001 Select Johnson/Evinrude 2-cylinder 10–55 HP, 3-cylinder 60–85 HP and V4 88–140 HP outboards 0438556, 0398338, 0388268 18-7352
ARCO FP002 Select 1981–1998 Johnson/Evinrude 6, 8, 9.9 and 15 HP outboards 0397839, 0397274, 0395091 18-7350
ARCO FP003 Select 1993–2007 Johnson/Evinrude 9.9 and 15 HP outboards 0438562, 0434728, 0777779 18-7351
ARCO FP004 Select 1990–2005 Johnson/Evinrude 20–35 HP outboards 0438555, 0433386, 0777764 18-7353
Why FP002 and FP003 both mention 9.9/15 HP: ARCO lists FP002 for selected 1981–1998 applications and FP003 for selected 1993–2007 applications. That overlap is not a statement that the pumps interchange. Check the exact OMC part number, engine model and fuel-line arrangement.

Check these details before changing a fuel pump

  1. Locate the outboard model and serial number, then identify the original pump assembly in its parts reference.
  2. Compare the original OMC part number with the cross-reference for the specific ARCO MPN.
  3. Inspect the mounting position and the direction of the fuel inlet and outlet. The store listings identify hose-barb inlet and outlet connections for these models; check the physical arrangement before fitting.
  4. Use fuel-rated hoses, clamps and other parts specified for the engine. Do not assume a primer bulb, fuel hose or gasket is included unless the individual listing confirms it.
  5. Work on a cool engine, keep ignition sources away from gasoline, and verify connections are leak-free using the manufacturer's service procedure before operation.

Questions when identifying an OMC replacement pump

Will FP001 fit every Johnson/Evinrude 10–55 HP outboard? No. The manufacturer gives that as one application family, not an all-model interchange guarantee. Cylinder count and the original assembly number still matter.

Is FP004 interchangeable with FP001 because both mention 20–35 HP? No. They have different ARCO and OEM cross-references. Match the engine's parts list instead of choosing by horsepower.

Does a new fuel pump fix every fuel-delivery problem? No. A damaged hose, blocked filter, faulty connector or fuel-tank vent can produce other fuel-flow symptoms; identify the cause before replacing parts.

Shop the exact ARCO fuel pump models

Each product card leads to its matching ARCO part number at NewRVParts. Check the listing for the supplied assembly and current availability.

More outboard fuel-system references

If the fuel line or filter is also being serviced, see our marine fuel-line and primer-bulb guide and inline fuel-filter identification page. Those accessories have their own compatibility requirements and are not interchangeable with the fuel pump.

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