Mercury – Fuel Line Assembly | Fuel System | Gray Low-Permeation Hose | 8M0094529

Overview

There’s a certain confidence that settles in when your fuel system responds exactly the way it should. One squeeze of the primer bulb, that smooth, tightening pressure rising in your hand, and you already know the engine is going to wake up clean and steady. It’s a simple moment — but every boater knows how much those moments matter. The Mercury Fuel Line Assembly 8M0094529 delivers that same dependable feeling every time you leave the dock. Whether you’re easing into a shallow marsh at sunrise or pushing back across wind-chopped water, it keeps fuel flowing smooth and predictable so you can stay focused on the water instead of the equipment under the cowling.

Key Features

• Five-sixteenth-inch inside diameter hose for stable, reliable fuel flow
• Low-permeation construction helps protect fuel freshness and reduce fumes
• Mercury-engineered primer bulb provides firm, consistent priming pressure
• Gray outer coating reflects heat to help reduce vapor-lock risk
• Flexible, marine-grade hose designed for long-term exposure and durability
• Compatible with various tank and engine connector styles
• Works with portable tanks, built-in systems, and custom rigging paths

Engine & Boat Compatibility

• Fits Mercury and Mariner outboards using universal five-sixteenth-inch fuel lines
• Ideal for small and mid-range horsepower engines across many production years
• Well-suited for pontoons, skiffs, runabouts, aluminum fishing rigs, inflatables, and tenders
• Adapts easily to different fuel tank types when paired with proper fittings

Performance & Practical Benefits

You’ll notice the quality immediately in the primer bulb — it firms up smoothly, offering that reassuring pressure that tells you fuel is moving exactly as it should. The hose bends naturally through tight rigging tunnels, around corners, and behind compartments without kinking or collapsing. That flexibility keeps the fuel flow stable when the boat hits chop, shifts load, or moves unpredictably through rougher water.

On hot days, the gray coating does more than look clean — it helps reflect heat away from the fuel line. That extra layer of protection lowers vapor-lock risks and keeps fuel temperatures more stable during long runs. The low-permeation design helps reduce gasoline odor and slows fuel evaporation, which is especially helpful if your boat is stored under a cover or inside a shed. Over time, the hose maintains its pliability instead of turning brittle, and the primer bulb stays responsive, giving you that same confident squeeze season after season.

Why Buy OEM

Genuine Mercury Marine parts are engineered to the same standards as the outboards they support. From hose materials to primer bulb check-valve design, every detail is built for real-world marine conditions. Aftermarket lines can look similar but rarely offer the same longevity or priming strength. Choosing OEM means fewer issues, better fitment, and dependable performance on every trip. It’s the practical choice for boaters who’d rather enjoy their time on the water than troubleshoot avoidable fuel problems.

FAQ

Q1: Which engines does the 8M0094529 Fuel Line Assembly fit?

It fits Mercury and Mariner outboards that use universal five-sixteenth-inch fuel lines and can be matched to the appropriate connectors.

Q2: Why is this better than aftermarket versions?

Mercury’s engineering provides stronger priming, longer hose life, and more consistent fuel delivery over time.

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

Check that your system uses a five-sixteenth-inch hose and verify your connector types. With the proper fittings, this assembly is usually a direct match.

Q4: Can it be used in freshwater and saltwater?

Yes. It’s designed for durable, long-term use in either environment.

Q5: Is installation straightforward?

Very. Add the correct connectors, route the hose neatly, secure it properly, and most boaters can handle installation easily.