Quicksilver thermostat cover gasket for Mercury/Mariner – 27-853702005

Quicksilver thermostat cover gasket 27-853702005 is an original OEM gasket for the thermostat cover on select Mercury and Mariner outboard motors. The gasket is installed between the thermostat cover or cover bracket and the cooling system motor housing.

The gasket is documented for select engines from 4 to 25 hp, including several 4-stroke models as well as certain international 2-cylinder variants. Compatibility varies by engine model and design, so the spare part number should be verified against the engine's parts catalog before ordering.

Spare part number 27-853702005 has been discontinued and is functionally replaced by 27-8M0214960. The previous part also replaces OEM numbers 27-853702 and 27-898101194.

One gasket is used per relevant thermostat cover assembly. The gasket is intended for service or repair of the thermostat cover assembly in the engine's cooling system.

Original Quicksilver OEM gasket
Spare part number: 27-853702005
For thermostat cover or thermostat cover bracket
Compatible with select Mercury and Mariner outboard motors
Documented engine performance: 4-25 hp depending on model
Functionally replaced by 27-8M0214960
One gasket used per relevant thermostat cover assembly
Check engine model and spare part number before purchase