Fuel Filter | Sierra 18-7716

Sierra 18-7716 Fuel Filter | Johnson & Evinrude 4-Stroke Outboard | Replaces OMC 5032323, Suzuki 15410-87J10

The Sierra #18-7716 is a replacement inline fuel filter for Johnson and Evinrude 4-stroke outboard motors. Also cross-references Suzuki 15410-87J10. Strains debris from incoming fuel to protect the carburetor or fuel injection system. Replaces OMC/Johnson/Evinrude 5032323 and Suzuki 15410-87J10.

Product Details:

• Part Number: 18-7716 (Sierra)
• SKU: SIERRA-18-7716
• Manufacturer: Sierra
• Type: Inline Fuel Filter
• Application: Johnson and Evinrude 4-stroke outboards (see fitment list); Suzuki (cross-reference 15410-87J10)
• Replaces: OMC/Johnson/Evinrude 5032323; Suzuki 15410-87J10
• Condition: New

Fitment — Johnson & Evinrude 4-Stroke Outboards:

• Johnson 25 HP 4-stroke: 2004–2005
• Johnson 30 HP 4-stroke: 2004–2007
• Johnson 40, 60, 70 HP 4-stroke: 2002–2006
• Johnson 90, 115, 140 HP 4-stroke: 2003–2004, 2006
• Evinrude 25, 30, 40, 50, 70 HP 4-stroke: 2000–2001

Cross-Reference — Replaces:

• OMC / Johnson / Evinrude: 5032323
• Suzuki: 15410-87J10

Additional Information

Inline Fuel Filter — Function and Location:

The inline fuel filter mounts in the fuel line between the fuel tank and the engine's carburetor or fuel injection system. It captures sediment, rust particles, water droplets, and other contaminants in the fuel before they reach the engine's fuel delivery components. On the Johnson and Evinrude 4-stroke outboards covered by the 18-7716, the filter is a serviceable replacement item — it should be replaced at regular intervals rather than cleaned. A clogged or restricted fuel filter reduces fuel flow to the engine, causing lean running, hesitation, hard starting, or engine cutout at wide-open throttle.

Suzuki Cross-Reference — 15410-87J10:

The 18-7716 cross-references Suzuki 15410-87J10. If your Suzuki outboard uses this OEM part number, the Sierra 18-7716 is the compatible aftermarket replacement. Confirm your Suzuki model and year uses the 15410-87J10 filter in your engine's parts documentation before ordering — specific Suzuki model/year fitment data is not listed in the Sierra fitment chart for this part number.

Fuel Filter Replacement Interval:

Replace the fuel filter annually as part of seasonal maintenance, or more frequently if:

• The engine exhibits symptoms of fuel restriction (hesitation, hard starting, cutout at WOT, lean stumble)
• The boat has been stored with old fuel or varnish-contaminated fuel has been run through the system
• The fuel tank is older and may be shedding internal corrosion particles or sediment
• Ethanol-blended fuel (E10 or E15) has been used — ethanol can suspend and transport more water and debris than non-ethanol fuel

Symptoms of a Clogged Fuel Filter:

• Hard starting or long cranking before start — insufficient fuel pressure to prime the system quickly
• Hesitation or stumble at acceleration — fuel demand exceeds restricted filter flow during throttle advance
• Engine cutout at wide-open throttle — maximum fuel demand reveals restriction that is not apparent at idle or cruise
• Rough idle that improves at speed — a partially clogged filter may allow enough flow for idle but not for consistent low-speed operation
• Engine runs fine cold but stumbles when warm — fuel vaporization increases restriction effect in a partially clogged filter at operating temperature

Installation Notes:

• Confirm your engine model and year matches the fitment list before ordering
• Note fuel flow direction arrow on the filter body — install with arrow pointing toward the engine (downstream)
• Relieve fuel system pressure before disconnecting fuel lines if the engine has a fuel injected system
• Inspect fuel line hose clamps at filter replacement — replace any clamps that are corroded or not seating properly
• Run the engine after installation and check filter connections for leaks before returning to service

Frequently Asked Questions

1. How often should I replace this fuel filter?
Annually as part of seasonal maintenance is standard practice. Replace sooner if the engine shows symptoms of fuel restriction — hesitation, hard starting, or cutout at wide-open throttle.

2. Does this filter fit Suzuki outboards?
The 18-7716 cross-references Suzuki 15410-87J10. Confirm your Suzuki model and year uses this OEM part number in your engine's parts documentation before ordering.

3. Which direction does the filter install?
Install with the flow direction arrow on the filter body pointing toward the engine — fuel flows from the tank through the filter to the engine.

4. Can a clogged fuel filter cause the engine to cut out at full throttle?
Yes — wide-open throttle places the highest fuel demand on the system. A filter that is partially clogged may allow enough flow for idle or cruise but restrict flow enough to cause cutout or power loss at full throttle.

5. What OMC/Johnson/Evinrude part number does this replace?
OMC/Johnson/Evinrude 5032323.