Thermostat gasket – code: MC27-8M0177107 – Mercury

Mercury thermostat gasket – spare part for thermostat cover

The Mercury thermostat gasket with code MC27-8M0177107 (reference 27-8M0177107) is a spare part dedicated to the thermostat assembly, indicated as “Thermostat Cover Gasket”. It is designed for use on outboard engines 4 stroke in the nautical field, where the correct sealing of the thermostat cover is an essential aspect for orderly maintenance and for restoring the component according to specifications.

Spare part features and details

The product is a gasket for thermostat cover intended for outboard engines. During replacement, the gasket helps restore the sealing interface between the mating surfaces of the thermostat assembly, reducing the risk of improper installations due to worn or unsuitable gaskets.

Product identification

• Type: Thermostat gasket / thermostat cover gasket (“Thermostat Cover Gasket”).
• Code: MC27-8M0177107 (reference 27-8M0177107).
• Brand: Mercury / Quicksilver (as per existing description).
• Scope: 4-stroke outboard engines.

Compatibility (as per available information)

Based on the data present in the existing description, the gasket is indicated for applications on 4-stroke outboard engines in a power range that includes 8 HP, 40 HP and 60 HP, with references to versions EFI and “Pro” models such as 40 HP Pro. Examples of models are also listed: 40 CARB, 40 EFI, 40 EFI PRO.

Important note: compatibility may vary depending on the year, serial number, and engine configuration. For a correct purchase, it is recommended to verify the code 27-8M0177107 (or MC27-8M0177107) in the spare parts catalog or through engine identification.

Typical applications in the nautical field

The thermostat gasket is a consumable component that is normally replaced during interventions on the thermostat assembly or when performing maintenance on the cooling circuit. In a workshop or refitting context, it is a useful spare part to properly restore the assembly of the thermostat cover after disassembly, inspections, or replacement of related parts.

When replacement may be required

• During the disassembly of the thermostat cover for inspection or maintenance.
• In case of deteriorated gasket or no longer suitable for reassembly.
• During scheduled interventions on the thermostat assembly and adjacent components.

Usage contexts

• Routine maintenance of 4-stroke outboard engines.
• Technical Assistance and component restoration in the workshop.
• Refitting and interventions on onboard systems where a spare part identified by code is required.

Operational advantages

Why choose a replacement identified by code

• Recognizability: the reference MC27-8M0177107 / 27-8M0177107 helps reduce ambiguity during ordering.
• Application consistency: the designation “Thermostat Cover Gasket” clarifies the area of use in the thermostat group.
• Spare parts management: useful for workshops and maintenance personnel working with parts lists and codes.
• More streamlined intervention: a suitable gasket simplifies the restoration of the thermostat cover after disassembly.

Usage and installation notes

Replacing a thermostat cover gasket is part of typical maintenance activities. For a correct result, it is important to carefully work on the mating surfaces and follow the procedures provided by the engine manufacturer.

General indications

• Code verification: before ordering and installation, compare the code 27-8M0177107 (or MC27-8M0177107) with the spare parts catalog or engine data.
• Surface cleanliness: remove residues of the previous gasket and ensure that the surfaces are clean and intact.
• Reassembly: follow the procedure in the engine workshop manual for the sequence and tightening method.
• Final check: after the intervention, visually check the thermostat cover area and the absence of anomalies during operation.

Support for identification

If you have doubts about compatibility, prepare the engine identification data (model and serial number) and compare them with the reference 27-8M0177107. Alternatively, you can use the examples provided (40 CARB, 40 EFI, 40 EFI PRO) as an initial guide, remembering that they do not replace catalog verification.

FAQ – Frequently Asked Questions

What is the code of the Mercury thermostat gasket on this sheet?

The product is identified by code MC27-8M0177107, with reference 27-8M0177107.

What is this gasket used for?

It is a gasket for the thermostat cover (“Thermostat Cover Gasket”) and is used during interventions on the thermostat assembly to properly restore the seal between the mating surfaces.

For which engines is it indicated?

Based on the available information, it is indicated for 4-stroke outboard engines and for applications including power from 8 HP to 60 HP, with references to EFI versions and “Pro” models such as 40 HP Pro. Verification through code and engine data is always recommended.

Are examples of compatible models provided?

Yes. The description cites as examples 40 CARB, 40 EFI, and 40 EFI PRO.

How can I check compatibility before purchase?

Compare code 27-8M0177107 (or MC27-8M0177107) with the spare parts catalog or verify using the engine identification data (model and serial number).