Description

The Mercury MerCruiser Quicksilver Oil Filter Assembly 8M0162831 is a genuine Mercury screw-on oil filter for select Mercury and Mariner 8–30 HP FourStroke outboards. It is designed to remove harmful contaminants from engine oil while maintaining proper oil flow, helping protect internal engine components during routine marine service.

Key Features

• Genuine Mercury Marine oil filter assembly
• Part number: 8M0162831
• Also referenced as 35-8M0162831
• Screw-on canister-style oil filter
• M-pleated filter media helps capture oil contaminants
• Anti-drainback valve helps reduce dry starts
• Installs with a standard oil filter wrench
• Designed for select Mercury and Mariner small-horsepower FourStroke outboards

Engine Compatibility

Fits select Mercury and Mariner FourStroke outboards, including:

• 8 / 9.9 HP FourStroke — 323 cc
• 15 / 20 HP FourStroke — carbureted models
• 15 / 20 HP EFI FourStroke — serial number 0R833820 and above
• 25 / 30 HP EFI FourStroke — model year 2006 and newer

Serial Number Fitment Notice

Oil filter fitment can vary by engine model, production year, and serial number range. Always confirm 8M0162831 against your engine serial number, parts diagram, or original filter before ordering.

When This Part Needs Replacement

Replace the oil filter during scheduled oil service, when changing engine oil, or if the filter is damaged, leaking, corroded, or overdue for maintenance. A clean oil filter helps keep contaminants out of the lubrication system and supports long-term engine protection.

Installation Notes

Lightly oil the filter gasket before installation, spin the filter on until the gasket contacts the sealing surface, then tighten according to the engine service manual. After installation, run the engine, check carefully for leaks, and recheck the oil level before returning the engine to service.

Alternate/Superseded Part Numbers

• Mercury: 8M0162831
• Mercury / Quicksilver reference: 35-8M0162831
• Supersedes: 822626K03
• Related superseded OEM references: 851847A02, 822626T1
• Related Quicksilver reference: 35-8M0162832

Parts Desk Insight

This filter is commonly used on smaller Mercury and Mariner FourStroke outboards, but serial number matters. The safest match is by engine serial number first, especially around the 15/20 HP EFI and 25/30 HP EFI applications where production range affects fitment.

Shipping: Ships same or next day for fast Canada wide shipping.