Yamaha Conduction Assembly (67X‑E2590‑00‑00) keeps your jet‑drive’s cooling system happy without breaking a sweat. Cast from glass‑filled nylon, this quick‑attach fitting twists onto the factory port even when your hands are soaked, thanks to eight deep grip ribs and a locator pin that drops the threads in place on the first try. A twin‑O‑ring barbed spigot seals tight, so when you snap on a garden‑hose adapter and crack the faucet, fresh water scours away salt, sand, and silt before they can hard‑bake into trouble. The payoff is a cooler‑running engine and fewer scale‑clogged passages—letting you spend more time carving wake and less time chasing alarms.

Why it deserves a spot in the dock box:

• Tough build: glass‑filled composite shrugs off UV, fuel splash, and dock knocks.
• Glove‑friendly: tall ribs double as knuckle guards; no pliers required.
• Leak‑proof fit: precision barbs and twin O‑rings mean no drips, no guesswork.
• Broad compatibility: fits dozens of Yamaha models—from early GP and FX WaveRunners to AR and 242 jet boats (2005‑2018+).

Stash one in your maintenance kit, flush after every run, and enjoy worry‑free hours on the water.