Give your F70 the steady cooling flow it deserves with Yamaha’s Water Pump Repair Kit 6CJ-W0078-01-00. Everything that lives below the pump plate is in the bag, so you can knock out a full service in one go—no mid-project parts runs.

What’s inside (and why it matters)

• OEM impeller molded from nitrile rubber with a brass hub—grips the cup, won’t crack in cold starts.

• Chrome-plated wear plate & sleeve restore factory-clear tolerances for max water volume.

• Pump cup, grommets, O-rings, and key—all pre-sized for the F70’s 2.33-inch housing.

• New stainless screws so you’re not re-using corroded hardware.

Pop the lower unit, clean the cavity, drop in the fresh parts, torque to spec, and you’re back on the water with rock-steady temps at idle and wide-open throttle alike. Routine every-season maintenance becomes a one-box, one-hour job—and your impeller, plate, and seals all age at the same rate, so the next kit change is predictable. Small investment, huge insurance for the engine that gets you home.