Quicksilver Quick Disconnect Fuel Line Connector Kit — 5/16" (8mm) OEM-fit clip-on with clamps

The Quicksilver 804787Q Quick Disconnect Fuel Line Connector Kit is a factory-grade clip-on connector assembly that lets you attach a 5/16" (8mm) fuel hose to Mercury, Mariner and compatible outboard engines quickly and securely.

Designed and manufactured to Mercury Marine original equipment standards, this connector kit replaces worn fittings and restores a dependable, leak-resistant connection between your portable tank hose and the engine fuel inlet. The kit includes the mating engine connector, fuel barb fittings sized for 5/16" (8mm) inner diameter hose, and hose clamps so you can install a fresh, OEM-spec fuel line termination without searching for multiple parts.

How does this connector make fueling easier on the water?

The clip-on quick disconnect design enables single-handed attachment and detachment of the portable tank hose to the engine fuel inlet, reducing fumbling while boarding or refueling. Its made-to-fit dimensions ensure a snug seal and fast, repeatable hookups.

• Clip-on action for rapid connect/disconnect
• 5/16" (8mm) barb for common portable tank hose
• Includes matching engine-side connector for a complete replacement
• Hose clamps provided to secure the barb to the fuel line

Will this work with my Mercury or Mariner outboard?

Yes — the 804787Q is specifically made to mate with Mercury, Mariner and many Force outboards that use the clip-on quick disconnect style fuel fittings. It was produced to the same specifications used for Mercury Marine original parts, so fit and function match OEM expectations.

• Engine-side connector shaped for Mercury/Mariner clip systems
• Manufactured to Mercury Marine OEM tolerances
• Compatible with portable tanks using 5/16" (8mm) ID hose
• Useful for replacing corroded or cracked connectors on older lines

What comes in the kit and what tools are needed for installation?

The kit ships with the fuel fitting connectors for both hose and engine ends and two hose clamps so you can finish the installation immediately. Basic hand tools are all that’s needed: a utility knife to trim hose, and a screwdriver or nut driver for the clamps.

• Includes two fuel fitting connectors and two hose clamps
• Works with new or existing 5/16" (8mm) fuel hose
• Tools: knife for hose cut, screwdriver or nut driver to tighten clamps
• Recommend replacing primer bulb and old hose when renewing connector

How does using Quicksilver parts benefit long-term engine reliability?

Quicksilver parts are engineered and tested to withstand marine environments and matched to Mercury Marine equipment, which reduces the chance of fitment problems or premature wear. Installing OEM-spec connectors helps maintain proper fuel flow and minimizes leaks that can lead to performance issues.

• Engineered to Mercury Marine original equipment specifications
• Durable materials selected for marine exposure
• Reduces risk of fuel leaks and connection failures
• Backed by decades of marine parts design and testing

Who is this for: Boat owners, rental operators and maintenance technicians who run Mercury, Mariner or compatible outboards and need a ready-to-install, OEM-spec quick disconnect fuel connector for 5/16" (8mm) hose. It’s ideal when replacing aging fittings, prepping a portable tank setup for the season, or bringing a fuel system back to original factory fit and reliability.