Mercury – Inline Oil Filter | OptiMax Series | Composite Filter Media | 875284T01

Overview

Out on the water, you learn quickly that small parts often carry big responsibilities. The inline oil filter is one of those quiet heroes — you don’t really think about it until it stops doing its job. When it’s working right, everything feels smoother. Your OptiMax responds without hesitation, the throttle feels connected, and the engine holds that steady hum you’ve come to trust. The Quicksilver 875284T01 Inline Oil Filter helps keep that feeling alive by protecting the heart of your engine from the kind of contaminants that steal power and shorten its life. It’s a simple part, but one that gives you genuine peace of mind every time you pull away from the dock.

Key Features

• Designed for Mercury 2.5L and 3.0L OptiMax outboards.
• Precise inline filtration helps protect internal components.
• Composite filter media for consistent oil flow and contaminant capture.
• Suitable for non-Pro models with serial number 1B227000 and above.
• Built to Mercury Marine OEM specifications for long-term reliability.

Engine & Boat Compatibility

• Fits Mercury 2.5L and 3.0L OptiMax outboards (non-Pro models).
• Ideal for bass boats, bay boats, offshore fishing boats, and recreational hulls running OptiMax engines.
• Works with both freshwater and saltwater applications.

Performance & Practical Benefits

When you change this filter, you’ll usually notice the improvement before you even hit open water. Oil circulates cleanly and consistently, giving your engine that well-tuned, confident tone. On an OptiMax, especially, maintaining clean oil is critical — these engines are known for crisp throttle response and dependable performance, and that depends heavily on proper lubrication.

The 875284T01 filter is engineered to strike the right balance: tight enough to catch harmful debris, but open enough to allow steady flow even during high-load acceleration. That means fewer pressure fluctuations, better low-speed smoothness, and a much lower chance of long-term wear sneaking up on you.

It’s also a practical piece of maintenance. Changing it is quick, clean, and easy, and it’s one of the best ways to keep your OptiMax running at peak performance. Many boaters describe an immediate improvement in cold starts and idle quality, simply because the engine is finally receiving the clean oil flow it was designed for.

Why Buy OEM

OptiMax engines are sensitive to parts quality — especially filters. An aftermarket inline filter might look the same, but small differences in construction can lead to pressure loss or contamination bypass. With Quicksilver OEM, you get the exact micron rating, the correct internal flow-path design, and the durability to withstand a marine environment.

There’s also the comfort of knowing Mercury engineers built this filter for your engine, not “for most engines.” When you’re miles from the ramp, that matters. A genuine Mercury Marine part keeps things predictable, reliable, and running the way they should.

FAQ

Q1: Which engines does this filter fit?

It fits Mercury 2.5L and 3.0L OptiMax outboards (non-Pro models) with serial numbers 1B227000 and above.

Q2: What makes this different from aftermarket filters?

OEM filtration media, correct flow rate, proper construction, and proven reliability under marine loads.

Q3: How do I know if this is the right replacement?

Match your original filter’s part number or check your OptiMax service manual.

Q4: Can it be used in saltwater?

Yes — the filter is built to handle both saltwater and freshwater conditions.

Q5: Is installation simple?

Very. Most boaters can swap it out with basic tools and a clean workspace.