Mercury Coupling Assembly - 22-862225. Mercury's push-lock coupling keeps your MerCruiser's fuel or coolant line locked tight, yet disconnects in seconds when service calls. The compact fitting-only 1.5 × 1 × 0.75 inches and light as a fishing sinker-houses a CPC quick-connect sleeve that snaps onto the mating stud with a decisive click. Dual internal O-rings in the rugged composite body give you a drip-free seal whether you're trolling the flats or cruising home at sunset.. Why techs keep a spare on board:. Glass-fiber-reinforced housing shrugs off UV, fuel, and salt better than brittle nylon clones.. Low-profile gray release tabs let you pop the hose free one-handed, even with gloves on.. 3/8-inch barbed tail slides into standard Mercury hose-no adapters, no fuss.. Direct replacement for hundreds of 3.0 L-6.2 L sterndrive and inboard engines from the mid-'90s to today.. Swap in a fresh coupling when the old one shows nicks or sticky latches. A five-minute fix now can spare you a fuel