Quicksilver Quick-Disconnect Fuel Line Fitting 13563Q3 — 5/16" Barb, Double-Seal & Clamp

The Quicksilver 13563Q3 is a clip-on quick-disconnect fuel line fitting with a 5/16" (8mm) barb designed to join portable tanks to Mercury, Mariner and compatible Force outboard engines.

Built to the same OEM standards trusted by Mercury Marine, this Quicksilver connector replaces worn or damaged engine-end fittings on many outboards so you can restore a secure, leak-resistant fuel connection. It’s engineered for durability in a marine environment and includes a double-seal connector plus a hose clamp for a complete, ready-to-install repair.

Which engines and years is the 13563Q3 compatible with?

This fitting fits Force outboards 40hp and larger from 1993 onward and certain 9.9–25hp Force models from 1998. It also works with Mercury and Mariner outboards that use the clip-on style quick disconnect at the engine end.

• Force 40hp and up — 1993 and newer
• Force 9.9–25hp — select 1998 models
• Mercury & Mariner outboards using clip-on engine-end fittings
• Not for in-line or threaded fuel connections — confirm clip-on style first

How do I install the Quicksilver quick-disconnect fitting?

Installation is straightforward and suited to basic DIY maintenance: remove the old connector, slide the hose onto the 5/16" barb, secure with the supplied clamp, and engage the clip on the engine inlet. The included double seal helps prevent leaks when the connector is properly seated.

• Cut and inspect fuel hose; use 5/16" (8mm) I.D. hose only
• Push hose fully onto the barb and tighten the provided clamp
• Attach clip-on end to engine inlet until it snaps into place
• Check for leaks before use; replace primer bulb and hose if aged

What are the main features and benefits of this connector?

Quicksilver designed the 13563Q3 for reliable service and easy replacement of older hardware. The double-seal connector reduces the chance of fuel seepage, while the molded barb and clamp deliver a secure hose attachment for regular trailering and marine vibration.

• 5/16" (8mm) barb compatible with standard portable tank hose
• Double-seal design for improved fuel retention at the engine end
• Supplied hose clamp included for immediate installation
• OEM-quality construction—built to Quicksilver standards for longevity

When should I replace my fuel line connector and related components?

Replace the connector if you see fuel smell, visible cracks, loose connections, or difficulty attaching the clip. It’s also wise to replace old primer bulbs and weathered fuel hose at the same time to ensure a complete, dependable fuel system replacement.

• Replace if connector won’t hold clip or leaks occur
• Swap primer bulb and hose when replacing the connector for best results
• Check yearly for age-related wear, kinks, or softening of hose material
• Use only recommended 5/16" I.D. hose to maintain proper fit

Who is this for? The Quicksilver 13563Q3 is aimed at boat owners, marine technicians, and weekend anglers who need a dependable, OEM-grade engine-end fuel connector for Mercury-, Mariner-, and Force-equipped outboards. If you maintain a portable-tank fuel system and want a straightforward replacement part that matches factory quality and fit, this quick-disconnect fitting provides a fast, durable solution.