Mercury – Water Pump Kit, 200–400HP Verado | Cooling System | 8M0065072

Overview

If you’ve spent any time around the big Verado six-cylinders, you know the water pump is one part you can’t afford to ignore. These engines move a ton of water, and when the pump starts getting tired, the engine lets you know—weak telltale, temps running a little warmer than usual, or that uneasy feeling when you’re idling in hot water. This kit is the proper OEM setup for a range of 200–400HP Verado models and brings the cooling system back to the solid, reliable flow these engines depend on.

Key Features

 • Correct Kit for 200–400HP Verado – Designed specifically for 6-cylinder FourStroke Verado platforms.
 • Restores Cooling Performance – Gives the impeller and pump housing a fresh sealing surface.
 • Marine-Durable Parts – Built to handle heat, pressure, sand, and vibration these motors see.
 • Straightforward Install – A clean swap once the lower unit is dropped.
 • OEM Fit & Tolerances – Ensures proper water flow at idle and at wide-open throttle.

Engine & Boat Compatibility

 • Mercury Verado 200HP
 • Mercury Verado 225HP
 • Mercury Verado 250HP
 • Mercury Verado 275HP
 • Mercury Verado 300HP
 • Mercury Verado 350HP
 • Mercury Verado 400HP
 • Select 6-cylinder FourStroke Verado outboards

Performance & Practical Benefits

A fresh pump kit keeps these high-horsepower engines running cool and steady. You’ll see a stronger telltale, more stable temps during long idle periods, and better confidence when pushing the boat hard. Since Verados rely heavily on strong cooling flow to support their supercharged power curve, a worn pump can throw off performance quicker than people expect. Replacing it keeps the engine safe—and gives you peace of mind when you're miles from the dock.

Why Buy OEM

Verados aren’t engines you want to trust to bargain-bin pump parts. OEM kits match Mercury’s exact tolerances, which means the impeller sits right, the housing seals properly, and flow stays where the engine expects it. Cheaper kits can swell, warp, or wear unevenly, leading to overheating or premature impeller failure. OEM keeps everything predictable.

FAQ

Q1: What are early signs the water pump needs attention?
A: Weak telltale, temps creeping up at idle, or the engine sounding hotter than usual.

Q2: Should I replace the impeller every time?
A: Yes—if you’ve already dropped the lower unit, do the impeller. It’s cheap insurance.

Q3: Is this a tough job for a DIY mechanic?
A: Not bad if you’re comfortable pulling a Verado lower unit and following the manual.

Q4: How often should this pump be serviced?
A: Many Verado owners do it yearly, especially if running sandy or shallow water.

Q5: What happens if the pump base or impeller is worn?
A: Cooling drops off, temps climb, and the engine may derate power to protect itself.