Mercury – Quicksilver 8116901 Inlet Needle and Seat | Mercury & Mariner 2-Stroke Outboards | Fuel System OEM Replacement | 8116901

Overview

A steady, controlled flow of fuel is what keeps a 2-stroke outboard running clean and strong. The Quicksilver 8116901 Inlet Needle and Seat set restores that precision inside your carburetor, helping your engine start easier, idle smoother, and pull harder through the mid-range.

Built to Mercury Marine OEM standards, this small but essential assembly is used on a wide range of Mercury and Mariner 2-stroke outboards from 105–225 horsepower. If your outboard has been flooding, bogging down, or idling rough, replacing the inlet needle and seat is one of the smartest fixes you can make.

Key Features

• Purpose: Regulates the flow of fuel into the carburetor bowl, preventing flooding and maintaining the correct fuel level.
• Fitment: For Mercury and Mariner 2-stroke V6 outboards, covering 105–225HP models.
• Kit Contents: Includes precision-machined needle, seat, and O-ring — everything required for one carburetor rebuild.
• Construction: Built from marine-grade brass and composite materials designed to resist wear, vibration, and ethanol-blended fuels.
• Design Quality: Matches Mercury’s exact OEM tolerances for reliable sealing and consistent fuel delivery.

Engine & Boat Compatibility

• Mercury and Mariner V6 2-stroke outboards, 105–225HP range
• Used on many bass boats, center consoles, offshore rigs, and high-performance fishing setups

Performance & Practical Benefits

Fuel control is everything in a 2-stroke. The 8116901 assembly restores that balance by closing tightly when the bowl is full and reopening smoothly as the carb needs more fuel. That precision keeps your engine from running rich, flooding at idle, or starving for fuel under load.

The parts in this kit are machined to the same dimensions as Mercury’s factory carburetor components, so the seal is exact. The materials resist modern ethanol corrosion and maintain their spring tension over time. Install it during a carb rebuild or routine maintenance, and you’ll notice cleaner starts, steadier idle, and crisper throttle response almost immediately.

Why Buy OEM

Mercury’s OEM fuel components are designed and tested specifically for marine environments — constant vibration, heat, and exposure to fuel blends that can break down lesser parts. Aftermarket versions might look identical, but they often use cheaper materials or looser machining tolerances that lead to leaks or flooding.

Choosing OEM means getting factory-level precision that keeps your outboard performing exactly as it should. It’s a small investment that protects your larger one — your engine.

FAQ

Q1: Which engines use the Quicksilver 8116901 kit?
A: It’s made for Mercury and Mariner 2-stroke V6 outboards from 105 to 225 horsepower.

Q2: What comes in the package?
A: One needle, one seat, and one O-ring, ready to install.

Q3: How do I know when to replace it?
A: Replace the needle and seat if your engine floods, idles erratically, or shows signs of poor fuel control after cleaning the carburetor.

Q4: Is this part ethanol-compatible?
A: Yes. It’s engineered to handle modern ethanol-blended fuels without sticking or degrading.

Q5: Can I install it myself?
A: Yes. If you’re comfortable servicing a carburetor, installation is straightforward. Always refer to your service manual for torque and setup details.