Mercury – Oil Change Kit | 40–50–60HP FourStroke Service | 8M0081912

Overview

This kit brings together the basic pieces you need to service a 40, 50, or 60HP Mercury FourStroke. Instead of tracking down the filter, oil, and the small gasket separately, everything is here in one box. It makes the job more straightforward and keeps the service routine consistent. Most techs prefer having the set ready to go—it saves time and removes a lot of second-guessing.

Key Features

  • OEM Oil Filter – Sized for these mid-range FourStrokes and built to hold pressure correctly.
  • 25W-40 Marine Oil – Formulated for the way these engines warm up and run throughout the day.
  • New Drain Plug Seal – Replaces the worn gasket so the crankcase closes up cleanly.
  • Right Oil Quantity – Enough oil for this engine group without extra bottles.

Engine & Boat Compatibility

  • FourStroke 40HP
  • FourStroke 50HP
  • FourStroke 60HP
  • Mercury mid-range maintenance series

Performance & Practical Benefits

Fresh oil helps these engines settle into a smoother idle and hold temperature more evenly, especially after long runs. Throttle response often feels steadier as well, simply because the lubrication system is working the way it should. With the kit, the job stays organized—you open it, complete the service, and the engine is ready for the next stretch of hours.

Why Buy OEM

Mercury’s oil and filters are matched to the tolerances inside these engines. That keeps oil pressure predictable and avoids the problems that show up with mismatched filters or the wrong viscosity. Using OEM parts ensures the engine behaves the same from one service interval to the next.

FAQ

1. How can I tell it’s time for an oil change?
If the oil looks dark or thin on the dipstick or it’s been a full season, it’s due.

2. Do I need anything besides what’s in this kit?
Just a drain pan and standard hand tools.

3. Is the oil suitable for saltwater use?
Yes, it’s blended with corrosion protection for marine engines.

4. Do I need to reset anything afterward?
No resets on these models—just note the hours for your own maintenance record.

5. What happens if oil changes are delayed?
Engines tend to idle rougher, run warmer, and lose some crispness under load.