Mercury – Oil Filter | Multi-Engine Service Series | Marine-Grade Construction | 8M0154768

Overview

There’s a certain comfort in knowing your engine is protected long before you ever push away from the dock. You check the fuel, listen to the idle, glance at the gauges — and beneath all that routine sits one little part making sure your day goes smoothly: the oil filter. The Quicksilver 8M0154768 Oil Filter brings that same confidence every boater wants, especially when you’re running older or mixed-brand marine engines. It’s a simple component, but it carries a heavy load, quietly keeping your oil clean so your engine feels steady, responsive, and ready for whatever the water throws your way.

Key Features

• Designed as a replacement for various marine engines requiring a 20-micron filter
• Provides superior contaminant removal compared to standard paper filters
• Includes replacement element and O-ring gasket for a clean, secure installation
• Built to meet Mercury Marine’s durability standards
• Replaces Westerbeke 36918 and Sierra 23-7800
• Easy to install with basic tools

Engine & Boat Compatibility

This Mercury Marine part is suitable for:

• Westerbeke marine engines requiring a 20-micron oil filter
• Gas or diesel auxiliary engines commonly found on sailboats, trawlers, and small cruisers
• Inboard and generator applications running Mercury-compatible filtration
• Boats operated in mixed environments where reliability and filtration quality are especially important

Always confirm compatibility using your serial number or model-specific documentation.

Performance & Practical Benefits

Oil may be the lifeblood of your engine, but filtration is what keeps that lifeblood clean and dependable. With its 20-micron element, this filter captures the finer particles that contribute to wear, sludge buildup, and loss of performance over time. You’ll notice smoother running, quicker starting, and a more stable idle — especially if your engine sees a lot of hours or works in heavy load conditions.

What makes the filter stand out is its consistency. The element maintains its structure even when hot oil and long intervals try to wear it down. Whether you’re cruising at low RPMs or running a generator during a long weekend at anchor, the filter works quietly in the background, keeping impurities from circulating through your engine’s internals.

The included O-ring gasket helps ensure a tight, leak-free seal. And installation is straightforward, so you can get back on the water without wrestling with complicated tools or awkward mounting spots.

Why Buy OEM

Choosing an OEM Mercury Marine part means choosing peace of mind:

• Designed and tested to Mercury’s exact engineering standards
• Longer service life compared to many aftermarket filters
• Consistent performance under high heat and heavy load
• Protects engine components from premature wear
• Installs cleanly with no modifications or guesswork

When you’re maintaining a marine engine — especially one that needs to perform reliably offshore — cutting corners on filtration simply isn’t worth the risk.

FAQ

Q1: Which engines does this oil filter fit?

It replaces filters used on various Westerbeke engines and other systems requiring Westerbeke 36918 or Sierra 23-7800 equivalents.

Q2: How is this different from aftermarket options?

OEM filtration offers better particle control, stronger construction, and more reliable sealing.

Q3: How can I confirm this is the right filter for my engine?

Match your old filter number or cross-reference your engine manual for the correct part number.

Q4: Can I use this in both saltwater and freshwater environments?

Absolutely — it’s built for the full range of marine conditions.

Q5: Is installation simple?

Yes. Most boat owners can replace it with basic tools in just a few minutes.