Gasket - code: MC27-822189 - Mercury

Mercury MC27-822189 Gasket (ref. 27-822189)

The Mercury gasket code MC27-822189 (reference code 27-822189) is a spare part dedicated to pump body for applications on Mercury outboard engines. It is designed for maintenance and restoration interventions, when it is necessary to replace the existing gasket during the disassembly of the pump assembly or during periodic checks.

In the nautical field, a properly selected and installed gasket is an essential component to keep the pump body assembly in proper condition, reducing the risk of leaks and contributing to a neat and consistent assembly with the original engine configuration.

Spare part features and details

Product identification

• Brand: Mercury
• Product code: MC27-822189
• Reference code: 27-822189
• Type: pump body gasket

Compatibility (available data)

According to available information, the gasket is indicated for 4T models in a power range from 25 to 75 hp. To avoid selection errors, it is advisable to always verify the match through code 27-822189 and, if necessary, compare the exploded spare parts diagram of your engine.

Spare part for pump body maintenance

This gasket is intended for pump body and is normally considered during operations such as:

• disassembly and reassembly of the pump assembly;
• scheduled maintenance interventions;
• preventive replacement when the gasket is worn or compromised.

In general, replacing the gasket when opening the assembly helps maintain a proper fit between surfaces, especially if the previous gasket was compressed or damaged during disassembly.

Typical applications in the nautical field

In the context of outboard spare parts and engines, The pump body gasket is used in workshop and onboard maintenance activities. It is a component that may be involved in operations such as:

• restoring the pump assembly following routine maintenance;
• interventions on components connected to the pump body, where it is necessary to reopen the assembly;
• seasonal or pre-launch checks, when inspections and replacements of wear parts are carried out.

Choosing the correct spare part is particularly important in the nautical field, where engine reliability and assembly quality directly affect regular use and maintenance management over time.

Advantages (conservative approach)

• Consistency with the expected spare part: identification through MC27-822189 / 27-822189 helps reduce ambiguities during ordering.
• Support for orderly assembly: a gasket in good condition facilitates reassembly of the pump body after disassembly.
• More straightforward maintenance management: replacing the gasket during the intervention avoids having to reopen the assembly due to an unsuitable gasket.
• Spare part suitable for workshop and recreational use: useful both for professional maintenance and for scheduled interventions on recreational boats.

Usage and operational notes

Check before purchase

For correct selection, it is recommended to:

• check the code 27-822189 in the spare parts catalog or on the engine exploded view;
• confirm that the engine falls within the 4T models indicated (range 25–75 hp according to available data);
• if in doubt, compare the code with that on the removed spare part (if legible) or with the spare parts list of the assembly.

General installation instructions

Procedures may vary depending on the specific model. Generally, when replacing a pump body gasket:

• carefully clean the mating surfaces, removing residues of the previous gasket;
• correctly position the gasket, avoiding folds or misalignments;
• reassemble the assembly following the sequence provided by the manufacturer and the workshop manual instructions.

Note: to ensure a compliant intervention, always refer to the technical documentation of your engine or qualified personnel.

Tips for spare parts management

• Store the gasket in a clean, dry place until installation.
• During disassembly, note the order of components and check the condition of parts related to the pump body.
• If the spare part is purchased for stock, label it with MC27-822189 and 27-822189 for quick identification in the workshop.

Summary

The Mercury MC27-822189 gasket (ref. 27-822189) is a spare part for pump body suitable for Mercury 4T engines in the range 25–75 hp (according to available data). Ideal for maintenance and restoration, it allows proper management of disassembly and reassembly operations of the pump assembly, maintaining consistency with Mercury spare part coding.

FAQ – Frequently Asked Questions

What is the correct code for this Mercury gasket?

The product is identified as MC27-822189 and shows the reference code 27-822189. For ordering and compatibility verification, it is advisable to use the code 27-822189.

What is the purpose of the MC27-822189 gasket?

It is a gasket for the pump body, used during maintenance or restoration interventions when disassembling and reassembling the pump group assembly.

For which engines is it indicated?

According to available data, it is indicated for Mercury 4T models in the power range from 25 to 75 hp. For confirmation, always check the code in the spare parts catalog of your engine.

Can I install it without checking the spare parts exploded view?

It is advisable to always verify the match through exploded view or spare parts manual, as compatibility may depend on the engine version and the specific assembly.

When is it advisable to replace the pump body gasket?

It is generally replaced when the pump assembly is opened for maintenance, or if the existing gasket is worn or damaged. In case of doubt, follow the workshop manual instructions.