Mercury – 4-Stroke Engine Oil Filter | Verado L6 Series | Heavy-Duty Steel Canister | 877769K01

Overview

Running a Mercury Verado L6 is an experience all its own — smooth, powerful, and surprisingly quiet for how much strength is hiding under the cowl. Protecting that investment starts with something simple: a quality oil filter. The 877769K01 Oil Filter gives you the kind of consistent protection that lets you enjoy your day on the water without worrying about what’s happening inside the engine. Every startup feels confident, every long run feels steady, and every hour you put on the motor feels protected.

Key Features

• Fits Inline-6 Mercury Verado 200–400 horsepower engines
• Also compatible with the Mercury Racing 400R and QC4V 860 sterndrive
• M-Pleated filtration media provides deep contaminant capture
• Heavy-duty steel shell for maximum durability
• Reliable anti-drainback valve
• OEM-engineered for exact flow and pressure requirements

Engine & Boat Compatibility

• Verado L6 200hp, 225hp, 250hp, 300hp, 350hp, and 400hp
• Mercury Racing 400R outboards
• QC4V 860 Racing sterndrive engines
• Perfect for offshore fishing boats, heavy center consoles, performance boats, and large dual consoles

Performance & Practical Benefits

A high-output engine like the L6 Verado demands clean oil and steady lubrication. This filter delivers exactly that. During long runs offshore, it keeps oil circulating smoothly, helping the engine maintain its characteristic quiet power. The anti-drainback valve ensures every morning startup is quick and properly lubricated, giving you a tight, responsive idle right away.

The filter’s thick shell resists collapse and corrosion, even when the engine is hammered by waves or extended high-RPM cruising. Its media traps the extremely small particles that can cause accelerated wear in high-performance engines, keeping internal components protected so your Verado can deliver the kind of crisp throttle response it was built for.

Why Buy OEM

When you’re running a premium engine, OEM isn’t just recommended — it’s essential. Mercury Marine designed this filter specifically for the L6 Verado’s high oil flow and pressure needs. Aftermarket filters simply can’t match that engineering precision. OEM parts eliminate the guesswork, giving your engine the exact foundation it needs to perform season after season.

FAQ

Q1: Which engines does this filter fit?

Inline-6 Verado 200–400hp, including the 400R and QC4V racing sterndrive.

Q2: Is OEM really better?

Yes — better filtration, stronger structure, and guaranteed compatibility.

Q3: How do I verify this is the right filter?

Check your engine model. If it’s an L6 Verado or 400R, this is the correct match.

Q4: Can it be used in saltwater?

Definitely — the heavy-duty shell is built to withstand harsh marine conditions.

Q5: Is installation simple?

Yes. If you’ve changed an oil filter before, this installs the same way.