Mercury – Quicksilver 8112231 Carburetor Gasket Set | Mercury & Mariner 2-Stroke Outboards | OEM Replacement | 8112231

Overview

Smooth throttle response and steady idle start with a properly sealed carburetor. The Quicksilver 8112231 Carburetor Gasket Set gives your outboard exactly that — a tight, reliable seal that keeps fuel and air flowing in perfect balance. Built to OEM specs, this kit is designed for Mercury and Mariner 2-stroke outboards from 30–125 horsepower, covering two-, three-, and four-cylinder engines.

If your motor’s been running rough, leaking fuel around the carb base, or losing performance at midrange, this kit is the fix that brings it back. It’s a small bit of maintenance that makes a big difference on the water.

Key Features

• Purpose: Replaces worn or hardened gaskets to restore carburetor performance and prevent air or fuel leaks.
• Fitment: For Mercury and Mariner 2-stroke outboards, including 30–40HP (2-cylinder), 40–90HP (3-cylinder), and 100–125HP (4-cylinder) models.
• Kit Contents: Includes carburetor gaskets, bowl plug gasket, nozzle well gasket, fuel bowl gasket, cover plate, and flange gasket.
• Construction: Made from fuel-resistant materials engineered to withstand modern ethanol-blended fuels.
• Ease of Installation: Designed to install easily with standard shop tools — no special equipment needed.

Engine & Boat Compatibility

• Mercury and Mariner 30–125HP 2-stroke outboards
• 2-, 3-, and 4-cylinder configurations
• Common on small fishing boats, runabouts, and mid-range offshore setups

Performance & Practical Benefits

The 8112231 Gasket Set seals the carburetor so your outboard gets the clean, consistent fuel-air mix it needs. Fresh gaskets help eliminate leaks that can cause poor idle, sluggish acceleration, or hard starting. When the carburetor’s tight and balanced, your motor breathes better — meaning stronger pull, smoother trolling, and improved fuel economy.

Each gasket in the kit is precision-cut for an exact factory fit. The materials are chosen for marine life — resistant to heat, vibration, and fuel exposure — so they hold up season after season. It’s a quick, satisfying repair that restores reliability and performance without a full rebuild.

Why Buy OEM

Mercury’s OEM gasket sets are designed for one thing: a perfect seal. Every gasket is tested under real-world marine conditions to make sure it maintains form and flexibility through heat, vibration, and constant fuel contact. Aftermarket sets often skip critical sealing surfaces or use materials that break down faster.

Using a genuine Quicksilver kit means every piece fits right the first time — no trimming, no guessing, no air leaks. It’s the same precision Mercury builds into every factory motor, giving you lasting confidence on the water.

FAQ

Q1: Which engines use the Quicksilver 8112231 gasket set?
A: It fits Mercury and Mariner 2-stroke outboards from 30–125HP, including 2-, 3-, and 4-cylinder models.

Q2: What’s included in the kit?
A: Gaskets for the bowl plug, nozzle well, fuel bowl, cover plate, and flange, plus main carburetor gaskets.

Q3: Can I install it myself?
A: Yes. Most boat owners can replace the gaskets using common hand tools and a service manual.

Q4: Are the gaskets safe for ethanol fuel?
A: Yes. They’re built from fuel-resistant materials designed to handle ethanol-blended fuels without shrinking or cracking.

Q5: When should I replace my carburetor gaskets?
A: Anytime the carburetor is serviced, cleaned, or showing signs of leakage or poor performance.