Mercury – Fuel Line Assembly | Fuel System | Gray Low-Permeation Hose | 8M0080264

Overview

There’s a certain peace of mind that comes from gear you don’t have to second-guess — especially when it’s tied directly to your engine’s lifeline. One squeeze of the primer bulb and you feel it: that smooth, steady pressure that tells you fuel is moving exactly the way it should. The Mercury Fuel Line Assembly 8M0080264 is built for boaters who appreciate that kind of quiet confidence. Whether you’re pushing off for an early-morning drift or riding back through a little afternoon chop, this assembly keeps fuel flowing clean and reliable so you can focus on the water, not the equipment under the cowling.

Key Features

• Five-sixteenth-inch inside diameter hose supports consistent, steady fuel delivery
• Low-permeation construction helps protect fuel quality and reduce gasoline odor
• Mercury-engineered primer bulb delivers firm, predictable priming performance
• Heat-reflective gray exterior helps reduce vapor-lock potential
• Flexible, marine-grade hose built to withstand long-term sun, fuel, and weather exposure
• Compatible with multiple engine and tank connector styles
• Ideal for portable tanks, permanent setups, and custom rigging runs

Engine & Boat Compatibility

• Fits Mercury and Mariner outboards using standard five-sixteenth-inch fuel lines
• Suitable for small to mid-range horsepower engines across multiple years
• Works well on pontoons, runabouts, aluminum fishing rigs, skiffs, tenders, and inflatable boats
• Adapts cleanly to various portable and fixed tank styles with the correct fittings

Performance & Practical Benefits

From the first squeeze of the primer bulb, you’ll feel the difference — a firm, clean pressure that reassures you fuel is moving properly. The hose routes naturally through rigging channels, bends smoothly around corners without collapsing, and resists kinks even when the boat hits chop or gear shifts around the deck. That flexibility helps maintain consistent fuel flow and contributes to easier starts and smoother idle.

On warmer days, the gray coating reflects heat instead of absorbing it, helping keep fuel temperatures more stable and reducing the chances of vapor lock during long stretches on the water. The low-permeation materials help cut down on fuel smell and slow evaporation — something you’ll appreciate if your boat stays under a cover or spends time sitting between outings. Over the long haul, the hose remains flexible rather than stiffening or cracking, and the primer bulb keeps its strong, predictable squeeze season after season. The end result is steady performance, fewer fuel-related issues, and a more relaxed experience on the water.

Why Buy OEM

When it comes to fuel delivery, genuine Mercury Marine parts are simply the most dependable choice. Every component of this assembly — from the hose composition to the valves inside the primer bulb — is engineered for marine use and tested to Mercury’s standards. Aftermarket versions may look similar, but they rarely match Mercury’s durability, priming strength, or long-term reliability. Choosing OEM means the right fit, consistent operation, and the confidence that your fuel system will perform exactly as your engine expects. It’s a smart decision for boaters who value reliability over shortcuts.

FAQ

Q1: Which engines does the 8M0080264 Fuel Line Assembly fit?

It fits Mercury and Mariner outboards that use a universal five-sixteenth-inch fuel line, once paired with the correct connectors for your tank and engine.

Q2: What makes this better than aftermarket options?

Stronger priming, higher-quality hose materials, and engineering specifically tuned for Mercury Marine performance.

Q3: How do I confirm this is the right replacement?

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

Q4: Can this be used in both saltwater and freshwater?

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

Q5: Is installation straightforward?

Very. Attach the correct connectors, route the hose neatly, secure it properly, and installation is simple for most boat owners.