Mercury – Fuel Line Assembly, 9 Ft., 5/16" I.D. | Fuel System | 32-8M0053989

Overview

If your outboard’s been a little stubborn—taking forever to prime, coughing when you bump the throttle, or losing steam when the water gets choppy—a tired fuel line is often the culprit. This 9-foot Mercury fuel line is basically a fresh start. It’s a straight 5/16" hose with no connectors attached, so you can rig it exactly how your tank and engine are set up. The hose has the right feel to it—flexible enough to snake through tight spots but firm enough that it won’t collapse when the engine pulls fuel. The included primer bulb actually pumps the way it should, too.

Key Features

 • 5/16" Low-Permeation Hose – Cuts down on fuel smell and stands up to today’s gas.
 • EPA-MERC-PB15 Primer Bulb – Good squeeze, quick prime, no mushiness.
 • Blank Ends by Design – Add your own connectors to match your system.
 • Durable, Easy-Routing Hose – Doesn’t kink up when you install it.
 • Gray UV Jacket – Stays cooler in the sun and helps avoid vapor-lock issues.

Engine & Boat Compatibility

 • Mercury outboards
 • Mariner outboards
 • Force outboards
 • Universal 5/16" fuel systems
 • Portable tanks (once you add the connectors you need)

Performance & Practical Benefits

A fresh fuel line like this usually smooths out a bunch of little annoyances. The engine primes faster, idle steadies up, and it stops falling on its face when you hit chop or try to get on plane. Since the hose doesn’t collapse under suction, the motor keeps pulling clean fuel no matter how the boat’s riding. It’s one of those small fixes that makes the whole setup feel more dependable.

Why Buy OEM

Mercury’s hose material holds up better to sun, vibration, and ethanol. Cheap aftermarket lines get soft, crack, or stink like raw fuel after a few weekends. The OEM bulb also lasts a lot longer—it doesn’t turn squishy halfway through the season. It’s the kind of part where you really do get what you pay for.

FAQ

Q1: How do I know my fuel line is on its way out?
A: Mushy spots, cracks, swelling, fuel odor, or a primer bulb that never gets firm.

Q2: Can I put any connectors on this line?
A: Yep—just match them to your tank and engine.

Q3: Which way should the bulb face?
A: Arrow goes toward the motor.

Q4: Why gray instead of black?
A: Gray absorbs less heat, which helps keep vapor lock at bay.

Q5: How often should I replace a fuel line?
A: Every season or two is pretty common—sun and ethanol chew through them quicker than you’d think.

• Supersessions
  32-8M0061099, 32-8M0061899, 32-8M0061899