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Oil Filter – Mercury Mariner and Honda Marine Applications (Replaces Mercury 35-822626Q1/Q03, Honda 15400-ZZ3-003)

Regular price $20.99

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Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket spin-on engine oil filter is supplied as a single replacement filter for selected Mercury Mariner and Honda Marine four-stroke outboard applications. It is identified as aftermarket filter 18-7913 and is listed as a replacement for the Mercury and Honda references shown below.

Use the original filter number and your engine service information to confirm fitment before ordering. Part-number compatibility is the primary reference because model, year, serial-number, and engine configuration conditions can vary.

  • Spin-on oil filter design for compatible four-stroke gasoline outboards.
  • 20 mm x 1.5 thread specification as listed for the 18-7913 application.
  • Anti-drainback valve helps reduce oil drain-back during engine shutdown and supports oil circulation during the next start.
  • Aftermarket replacement; this is not a genuine Mercury or Honda-branded component.

Part Number Matrix

The following references are associated with this replacement filter. They are provided for identification and interchange checking, not as a guarantee of fitment for every engine carrying a related model name.

Reference Type Brand Part Number
Aftermarket reference Aftermarket 18-7913
OEM replacement reference Mercury Mariner 35-822626Q1
OEM replacement reference Mercury Mariner 822626Q03
OEM replacement reference Mercury Mariner 822626QK03
OEM replacement reference Mercury Mariner 8M0154778
OEM replacement reference Mercury Mariner 8M0162832
OEM replacement reference Honda Marine 15400-ZZ3-003
Catalog interchange reference Honda Marine 15400-PFB-014

Engine and Model Compatibility

Catalog data associates the Honda reference 15400-ZZ3-003 with selected four-stroke Honda Marine models, including the examples below. The available records do not provide complete year or serial-number ranges, so verify the exact engine identification and service-manual part number before installation.

Brand Model Rated HP Stroke Reference Fitment Note
Honda Marine BFP8 8 HP 4-Stroke 15400-ZZ3-003 Catalog occurrence; verify year and serial range.
Honda Marine BFP9 9 HP 4-Stroke 15400-ZZ3-003 Catalog occurrence; verify year and serial range.
Honda Marine BFP15 15 HP 4-Stroke 15400-ZZ3-003 Catalog occurrence; verify year and serial range.
Honda Marine BF20 20 HP 4-Stroke 15400-ZZ3-003 Catalog occurrence; verify year and serial range.
Honda Marine BFP20 20 HP 4-Stroke 15400-ZZ3-003 Catalog occurrence; verify year and serial range.
Honda Marine BF60 / BFP60 60 HP 4-Stroke 15400-ZZ3-003 Catalog occurrence; verify year and serial range.

Mercury Mariner applications are associated with the Mercury references listed in the Part Number Matrix. Do not rely on horsepower alone: confirm that your existing filter or engine documentation specifies one of those references before purchase.

Technical Specifications

Product Type
Engine oil filter
Installation
Spin-on
Application
Selected four-stroke gasoline outboards
Thread Size
20 mm x 1.5
Aftermarket Reference
18-7913
Anti-Drainback Valve
Yes, as listed for this filter application
Brand Status
Aftermarket replacement; not an OEM component

What's in the Box

  • 1 x aftermarket spin-on engine oil filter

No additional gaskets, drain washers, tools, or maintenance-kit components are included with this single filter.

Installation Notes

  1. Turn the engine off, allow it to cool, and place an oil drain pan beneath the filter.
  2. Remove the existing filter by turning it counter-clockwise with an appropriate filter wrench if necessary.
  3. Clean the filter mounting surface and confirm that the old gasket has been removed.
  4. Apply a thin film of clean engine oil to the new filter gasket.
  5. Thread the new filter onto the mounting point by hand until the gasket contacts the sealing surface.
  6. Tighten the filter by hand according to the engine manufacturer's service instructions. Do not overtighten or use excessive wrench force.
  7. Refill the engine with the manufacturer-specified oil and check the level.
  8. Start the engine briefly, inspect the filter area for leaks, shut the engine off, and recheck the oil level after the oil settles.

Always follow the engine manufacturer's service manual for oil type, oil quantity, tightening instructions, and maintenance intervals.

Troubleshooting & FAQ

How do I confirm that this filter fits my engine?

Compare the part number on your existing filter or in the engine service manual with the references listed on this page. Confirm the complete engine model, year, serial-number range, and stroke designation where applicable. Do not use horsepower alone to determine fitment.

Is this an OEM filter?

No. This is an aftermarket replacement filter. Mercury Mariner and Honda part numbers are shown only as replacement and identification references.

Can I use this filter on a two-stroke engine?

No. This filter is intended for compatible four-stroke outboard applications. Confirm the required filter reference before installation.

What does the anti-drainback valve do?

The anti-drainback valve helps limit oil draining back into the crankcase while the engine is stopped, which can support faster oil availability during the next start.

What should I do if the filter leaks after installation?

Stop the engine immediately. Check that the old gasket was removed, the new gasket is seated correctly, the filter is installed straight, and the filter is tightened according to the manufacturer's instructions. Do not continue operating the engine with an oil leak.

How often should the oil filter be replaced?

Replace the filter at the interval specified in your engine manufacturer's maintenance schedule, normally during an oil change. Service intervals vary by engine model and operating conditions.

Safety & Important Information

  • Verify the original part number, thread specification, and application before ordering.
  • Do not install this filter on an engine requiring a different filter reference or thread size.
  • Dispose of used oil and the old filter in accordance with local regulations.
  • Professional installation is recommended if you are not familiar with marine engine servicing.

About Sea Sierra

  • Marine Replacement Parts — We supply aftermarket components for maintenance and repair applications.
  • Application-Focused Information — Part-number references are provided to help customers compare replacement options.
  • Maintenance Support — Always consult the engine manufacturer's service information for final fitment and service requirements.

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