Mercury – Replacement Oil Filter | V6 & V8 FourStroke Series | Premium Filtration Media | 8M0123025

Overview

Mercury 8M0123025, also listed as 35-8M0123025, is a genuine Mercury 4-stroke oil filter for select V6 and V8 FourStroke, Verado, and Racing outboards. It is designed for high-efficiency filtration and should be matched by engine model and serial number before replacement.

Mercury 35-8M0123025 is an OEM 4-stroke oil filter used on select high-horsepower Mercury V6 and V8 outboards. Common cross-references may include compatible Quicksilver or Sierra filters, but fitment should always be confirmed by engine serial number before replacement.

If you spend enough time on the water, you start to appreciate the little things that keep your engine running smooth—the quiet hum at idle, the steady pull when you throttle up, that feeling of confidence when you’re miles from the dock and everything just works. A good oil filter might not be the flashiest part of your setup, but it’s one of those pieces that directly affects how your day unfolds on the water. The Mercury 8M0123025 Replacement Oil Filter is built for boaters who understand the value of that confidence.

There’s something reassuring about installing a Mercury Marine part and knowing it was engineered specifically for the engine at your transom. No guesswork, no “close enough.” Just dependable protection you can trust season after season—whether you’re cruising with the family, pushing across chop to beat the tide, or easing back into the marina after a long day on the bay.

Key Features

• Designed for efficient, high-quality oil filtration on select Mercury 4-stroke outboards
• Fits select high-horsepower Mercury V6 and V8 outboard applications
• Anti-drain back valve helps support proper lubrication during start-up
• Advanced M-pleated filter media for improved contaminant capture
• Easy installation with common tools and an oil filter wrench
• Built to Mercury’s original equipment manufacturing standards

Engine & Boat Compatibility

• Fits select Mercury 3.4L V6 and 4.6L V8 175–300 horsepower FourStroke outboards
• Also used on select compatible Mercury Verado and Racing outboard applications
• Ideal for center consoles, offshore fishing boats, pontoons, bay boats, runabouts, and aluminum fishing rigs
• Compatible with both recreational and heavy-use commercial applications when matched to the correct engine
• Designed specifically for modern Mercury high-horsepower 4-stroke platforms

Because Mercury outboard fitment can vary by engine family, model year, and serial number range, always confirm this filter against your owner’s manual or PartsVu fitment data before ordering.

Performance & Practical Benefits

What makes this filter stand out isn’t just the materials—it’s the way it protects your engine in real-world use. The anti-drain back valve keeps oil in place, so when you turn the key, lubrication is already there. No dry starts, no momentary hesitation, just a smooth, confident ignition.

The filter media is tightly pleated, trapping contaminants without choking flow. That means your oil stays cleaner longer, your engine runs steadier, and you’ll notice fewer fluctuations in performance as the hours stack up. On long trips, it’s one of those quiet comforts—you know your engine is circulating cleaner oil, even when conditions get rough.

And installation is as straightforward as it gets. If you can change engine oil, you can swap this filter without a second thought. It threads in securely, seats cleanly, and gives you that solid, “good fit” feel that cheaper aftermarket options just don’t deliver.

Why Buy OEM

• Exact-fit design for compatible Mercury FourStroke V6 and V8 engines
• Engineered to maintain proper oil flow, pressure, and filtration standards
• Durable construction built to withstand marine heat cycles and vibration
• More cost-effective long-term protection compared to low-grade aftermarket filters
• Backed by Mercury’s decades of engineering and marine performance testing

Choosing OEM is simply choosing peace of mind. You’re protecting your investment and avoiding the shortcuts that often lead to bigger problems down the line.

FAQ

Which engines does this oil filter fit?
Mercury 8M0123025 fits select Mercury 3.4L V6 and 4.6L V8 FourStroke outboards rated from 175 to 300 horsepower. It may also be used on select Verado and Racing applications. Always confirm fitment by engine model and serial number.

Is Mercury 8M0123025 the same as 35-8M0123025?
Yes. Mercury 8M0123025 is also commonly listed as 35-8M0123025. Both references point to this genuine Mercury 4-stroke oil filter, but fitment should still be checked against your specific engine.

What makes this filter better than aftermarket options?
It’s designed to Mercury’s exact specifications for flow, pressure, and contaminant removal, helping ensure proper protection for compatible high-horsepower Mercury outboards.

Are there cross-references for Mercury 35-8M0123025?
Common cross-references may include compatible Quicksilver or Sierra filters, depending on the application. However, the safest method is to confirm the correct replacement filter by engine serial number before ordering.

How can I confirm this is the right filter for my engine?
Check your owner’s manual, verify your engine serial number, or match the filter to your engine’s recommended Mercury part number.

Can it be used for both saltwater and freshwater boating?
Yes. This filter is built for marine use in both saltwater and freshwater environments when used on a compatible Mercury outboard.

Is installation simple?
Yes. Most boaters can replace it with basic tools and a standard oil filter wrench during a routine 4-stroke oil change.