Briggs & Stratton Brand [Lifetime Warranty] 438556 18-7352 Fuel Pump with Gasket
438556 18-7352 fuel pump assembly with included mounting gasket.
18-7352 fuel pump promotional graphic featuring mechanics working on an engine.
Close-up infographic of 18-7352 fuel pump highlighting robust housing and premium metal components.
18-7352 fuel pump for Johnson Evinrude boat motors with promotional graphic background.
Multiple angles of 438556 18-7352 fuel pump showing top, side, and bottom views.
438556 18-7352 fuel pump replacement part with safety instructions infographic.
18-7352 fuel pump replacement part shown in a lifestyle graphic with a family on a boat.
438556 18-7352 fuel pump assembly with included mounting gasket.
18-7352 fuel pump promotional graphic featuring mechanics working on an engine.
Close-up infographic of 18-7352 fuel pump highlighting robust housing and premium metal components.
18-7352 fuel pump for Johnson Evinrude boat motors with promotional graphic background.
Multiple angles of 438556 18-7352 fuel pump showing top, side, and bottom views.
438556 18-7352 fuel pump replacement part with safety instructions infographic.
18-7352 fuel pump replacement part shown in a lifestyle graphic with a family on a boat.
Lifetime Warranty

[Lifetime Warranty] 438556 18-7352 Fuel Pump with Gasket

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438556 18-7352 Fuel Pump with Gasket

Key Features

  • Direct replacement mechanical fuel pump assembly.
  • Engineered to meet original manufacturer specifications for fit and performance.
  • Provides consistent fuel flow at a nominal pressure of 6-8 PSI.
  • Includes new mounting gasket for a complete and proper seal.

Replaces / Cross-Reference Part Numbers

  • OMC / Johnson Evinrude: 438556, 433390, 388268, 385784, 385781
  • Sierra: 18-7352
  • EMP: 1399-07352, 167352

Compatibility & Fitment

  • Fits a wide range of Johnson and Evinrude outboard engines from approximately 20 HP to 140 HP.
  • Designed for engines without a variable-ratio oiling system.
  • Commonly used on 2-cylinder models manufactured between 1976 and 1989.
  • Specific engine fitments include:
    • 20 HP (1985-1989)
    • 25 HP (1976-1988)
    • 28 HP (1985-1989)
    • 30-55 HP (1976-1989)

When to Replace

  • Engine is difficult to start or will not start.
  • Noticeable loss of engine power, especially at high RPM.
  • Engine sputters, surges, or stalls during operation.
  • Visible fuel leakage from the pump body or connections.

Installation Tips

  • Always disconnect the battery before starting installation.
  • Carefully disconnect fuel lines to minimize spillage.
  • Ensure the engine block mounting surface is clean and free of old gasket material.
  • Install with the new, included gasket to prevent leaks.
  • After installation, check all connections for tightness and leaks before running the engine.
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  • Fixing symptoms

    Fixing symptoms

    The engine struggling to start | The engine stalling while driving | Decrease in power or acceleration, etc
  • Premium quality

    Premium quality

    Made of high-grade materials and fine craftsmanship to provide exceptional durability for long-time use
  • Saving solution

    Saving solution

    Great feeling when your vehicle is repaired and works efficiently - Enjoy worthy savings by replacing the superior yet affordable part yourself!
  • Simple installation

    Simple installation

    Remove the fill lines. Carefully lower the gas tank. Clean the area around the pump access, remove the pump assembly. Reinstall with our new one.
WIDE APPLICATION

WIDE APPLICATION

Johnson Evinrude Boat Motors 20hp 25hp 28hp 30hp 33hp 35hp 40hp 45hp 48hp 50hp 55hp 60hp 140hp
RUGGED-BUILT FOR LONG-LASTING DURABILITY

RUGGED-BUILT FOR LONG-LASTING DURABILITY

BlueStars Fuel Pump's sturdy appearance and construction promote durability & efficiency and avoid cracking
EXCEPTIONAL PARTS, REMARKABLE JOURNEY

EXCEPTIONAL PARTS, REMARKABLE JOURNEY

Enjoy your seamless journey with the support of our replacement parts.
Brand Model Number
Johnson Evinrude 1985-1989 20hp, 1976-1988 25hp, 1985-1989 28hp, 1985-1989 30hp, 1968-1970 33hp, 1976-1989 35hp, 1968-1994 40hp, 1985-1994 45hp, 1985-1994 48hp, 1974-1994 50hp, 1976-1979 & 1985-1990 55hp, 1980-1985 60hp, 1977-1980 85hp, 1987-1996 88hp, 1981-1983 90hp, 1979-1980 100hp, 1994-1996 112hp, 1977-1983 115hp, 1977-1983 140hp

FAQ

This fuel pump is commonly used on Johnson and Evinrude outboards, and it is also cross-referenced under OMC, Sierra, and Mallory numbering. The most consistent fit information in the available references is for many 1976-1989 25-55 HP non-VRO models, though broader listings also place it on certain 20-140 HP Johnson/Evinrude applications. Because these engines were built across many years and fuel-system variations, the safest match is by your original part number and engine model rather than horsepower alone.
The title numbers are 438556 and 18-7352. Additional cross-reference numbers found in the available sources include 0438556, 385781, 388268, 394543, 395713, 382354, 398387, 398338, 432451, 433387, 9-35352, and 1399-07352. Some marketplace listings also associate this pump with 433390 and 385784, so if you are matching one of those numbers, confirm against your engine model before ordering.
Common symptoms include hard starting, the engine needing choke longer than normal, stumbling on acceleration, surging at mid-range, loss of top-end power, or the engine dying as throttle demand increases. On a mechanical outboard pump, a weak diaphragm or leaking check valves can reduce fuel delivery, especially under load. If the engine runs briefly when primed but then falls flat, the fuel pump is a common item to inspect.
On most Johnson/Evinrude outboards that use this style pump, installation is usually a straightforward bolt-on job. Typical tools are a screwdriver, a nut driver or small socket set, pliers for hose clamps, clean rags, and a container to catch any fuel drips. Plan on about 20-45 minutes if access is clear. Install the new gasket carefully, reconnect the fuel lines to the correct ports, and inspect the hoses while everything is apart.
Yes. A weak fuel pump can act a lot like a restriction elsewhere in the fuel system. Before or during replacement, inspect the fuel lines for cracking or softness, check the primer bulb, verify the tank vent is open, inspect the fuel filter, and look for air leaks at fittings. On older outboards, stale fuel and deteriorated hose material are common causes of poor fuel delivery, so replacing the pump alone may not solve the issue if contamination or line collapse is present.
Yes. This is a mechanical pulse-type outboard fuel pump used on specific carbureted Johnson/Evinrude applications. It is not a universal pump, and fit can vary by horsepower, year, and whether the engine uses a VRO-style fuel/oil system or a non-VRO setup. Available references specifically mention non-VRO applications for some 25-55 HP engines, so engine model verification is important even when the horsepower seems to match.