Mercury – Quick Disconnect Fuel Line Connector | Fuel System Component | Brass and Composite | 13563T3

Overview

A fuel system is only as good as its connections. The Mercury Marine 13563T3 Quick Disconnect Fuel Line Connector gives you that solid, no-leak fit between your outboard and fuel line that makes starting smooth and running steady. Built for Mercury, Mariner, and Force engines, it locks in place with a clean, confident click. It’s the kind of simple, rugged part that boaters come to trust — the one you don’t think about because it never lets you down.

Key Features

• Purpose: Connects the fuel line to the outboard end securely for clean, reliable fuel delivery.
• Material: Built from marine-grade brass and reinforced composite for long life and corrosion resistance.
• Design Detail: Clip-on quick disconnect design with double sealing surfaces to eliminate fuel drips and air leaks.
• Fitment: Designed for 5/16-inch (8mm) inside diameter fuel line hoses.
• Included: Comes with the fitting and a stainless clamp for easy installation.
• Compatibility: Fits Mercury, Mariner, and Force outboards that use clip-on style fuel connections.

Engine & Boat Compatibility

• Force 40 horsepower and larger outboards (1993 and newer).
• Force 9.9–25 horsepower (1998 models).
• Mercury 25/30HP EFI FourStroke and SeaPro engines (serial number 1R154758 and newer).
• Most Mercury and Mariner outboards using clip-on style 5/16-inch fuel fittings.
• Perfect for fishing rigs, pontoons, inflatables, and tiller boats with portable fuel systems.

Performance & Practical Benefits

A good connector should feel secure and seal tight the moment it locks in — and that’s exactly how this one performs. The 13563T3 connector clicks firmly into place, holding pressure even through long runs or heavy vibration. Its dual-seal design keeps air out and fuel moving smoothly, helping your motor start faster and run more consistently.

The materials are made for life on the water — corrosion-resistant brass, strong composite, and a tight, clean fit that stays that way over time. Once installed, it becomes one of those quiet pieces of gear that simply works, trip after trip, without leaks or fuss.

Why Buy OEM

You’ll find knockoff connectors that look similar, but they’re rarely cut to the same tolerances. The Quicksilver 13563T3 is a genuine Mercury Marine part, engineered to match factory specifications down to the millimeter. That means it seals properly, resists wear, and won’t crack under heat or fuel pressure.

With OEM parts, you’re not gambling with fit or longevity. You’re getting the same quality Mercury builds into its engines — components tested in real marine conditions for vibration, salt, and fuel compatibility. For boaters who rely on their outboard every weekend, that difference matters.

FAQ

Q1: Which engines use this connector?
It fits Force 40HP and larger (1993 and newer), Force 9.9–25HP (1998), and Mercury or Mariner outboards with clip-on 5/16-inch fuel lines.

Q2: What sets it apart from aftermarket versions?
It’s made to Mercury’s exact standards, ensuring a snug, leak-free fit that holds up to salt and ethanol-blended fuel.

Q3: How can I check compatibility?
If your engine uses a 5/16-inch fuel line and a clip-on style connection, the 13563T3 will fit perfectly.

Q4: Is it safe for ethanol fuels?
Yes — it’s designed to handle ethanol-blended marine fuels without swelling or corrosion.

Q5: How simple is the installation?
Very. Slide the line over the barb, secure it with the included clamp, and click the connector into your outboard.