Fuel filter 8M0122423 – code: MC8M0122423 – Mercury

Mercury fuel filter 8M0122423 (MC8M0122423)

The Fuel Filter Mercury 8M0122423 (supplier code MC8M0122423) is a fuel filter online designed for installation under the cowling on various Mercury engines. It is a spare part designed for the regular maintenance of the fuel system, useful for helping to keep the fuel circuit cleaner and reduce the passage of impurities to the engine.

In the nautical field, fuel quality can vary and the presence of water, moisture or contaminants can affect the overall operation of the system. This filter is made to intercept particles and contaminants before they reach sensitive fuel system components.

Main features and details

Filter element and construction

• Two-micron filter element: suitable for removing contaminants carried by the fuel.
• Screw-type replacement“: screw-on replacement element, designed for maintenance and replacement interventions.
• Inline filter under the hood: intended for mounting under the cowling (depending on engine configuration).

Positioning and installation (depending on application)

The filter can be installed under the outboard hood or, where provided, in the engine's fuel filter housing. The correct placement depends on the model and setup: for a compliant result, it is advisable to verify the correspondence through spare part code and the manufacturer's diagram.

Product codes

• Mercury code: 8M0122423
• Supplier code: MC8M0122423
• SKU: DAEP000062

Applications (indicated engines)

According to available information, this inline fuel filter under the cowling is suitable for various Mercury engines, including:

• Mercury Outboard 1.5L from 75 to 125 HP
• Mercury Outboard 1.5L Pro XS from 115 HP
• Mercury Verado 4-cylinder from 135 to 175 HP
• Mercury OptiMax from 200 to 225 HP
• Mercury 3.0L Pro XS from 200 to 250 HP
• Mercury 3.2L Pro XS from 300 HP
• Mercury Verado 3.0L from 200 to 300 HP
• Mercury Outboard Verado 2.6L from 350 to 400 HP
• Engines MerCruiser 4.5L and 6.2L (serial number 2A456613 and subsequent)

Maintenance advantages

A properly selected and regularly replaced fuel filter helps better manage impurities present in the fuel. In particular, this replacement part is designed to:

• Reduce the passage of contaminants in the fuel system, helping to protect sensitive components.
• Support consistent fuel supply under typical marine usage conditions, where condensation and humidity may occur.
• Simplify replacement thanks to the screw configuration of the filter element.

In general, servicing the fuel filter is one of the most common operations in marine engine maintenance: a correct and well-maintained replacement helps keep the system cleaner and more organized.

Usage and operational notes

When to replace the filter

The replacement frequency depends on the maintenance schedule provided by the manufacturer and the operating conditions (fuel quality, periods of inactivity, humid environment). In case of doubt, follow the instructions in the engine manual or service center.

Guidelines for a correct choice

• Always compare the spare part code (8M0122423 / MC8M0122423) with the one required by the engine.
• For MerCruiser, check compatibility based on the serial number indicated.
• If the engine requires a specific housing, make sure the filter is the one intended for the under hood or for the’housing is provided.

Installation

Replacing a fuel filter requires care to avoid dirt entering the system and to properly restore the seal. If you are not familiar with the procedure, it is advisable to consult qualified personnel.

Summary

The Fuel Filter Mercury 8M0122423 it is an inline replacement under the cover, with two-micron filter element and screw replacement, suitable for various Mercury outboard families and MerCruiser engines according to the listed applications. Ideal for those seeking a component consistent with fuel system maintenance and contaminant management in the fuel.

FAQ – Frequently Asked Questions

Is this filter an original Mercury?

In the available data it is indicated as “Fuel filter Mercury 8M0122423” with supplier code MC8M0122423. To confirm originality or supply line, the manufacturer's/supplier's documentation and the labeling of the received product are authoritative.

Where is the Fuel Filter 8M0122423 installed?

It is indicated as an inline fuel filter to be installed under the cowling. In some configurations, it can fit into the fuel filter housing provided by the engine. The exact position depends on the model.

Which engines are compatible with code 8M0122423?

It is indicated for various Mercury outboards (including 1.5L, Verado 4-cylinder, OptiMax, Pro XS, and Verado 3.0L/2.6L) and for MerCruiser 4.5L and 6.2L engines with serial number 2A456613 and later. Verification by code and serial number is still recommended.

What filtration grade does the element have?

The filter element is indicated as two microns, designed to remove contaminants carried by the fuel.

Is it a cartridge filter or a screw-in element?

It is indicated as a screw-in replacement element, intended for replacement during maintenance.