Mercury

Mercury 4.2L V8 TDI Thermostat 8M0086400

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SKU:: 8M0086400
UPC:: 745061941090
MPN:: 8M0086400
Availability:: Usually Ships within 24hours
Weight:: 12.80 Ounces
Shipping:: Calculated at Checkout

On Sale

MSRP: $1,243.99

Now: $1,096.83

Was: $1,243.99

— You save $147.16

Not sure if this part fits your engine?
Call our Marine Specialists at (727) 596-5929 or fill out a Contact Form .

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Description
Warranty Information

Description

Mercury Thermostat 8M0086400 is an OEM replacement thermostat for select Mercury MerCruiser 4.2L V8 TDI diesel engines. It regulates coolant flow through the engine cooling system to help maintain the proper operating temperature.

Compatible with select applications including:

Mercury MerCruiser 4.2L V8 TDI Diesel
4.2L TDI V8
TDI 4.2L 335 MCM
TDI 4.2L 335 MIE
TDI 4.2L 370 MCM
TDI 4.2L 370 MIE

Mercury's maintenance documentation specifically identifies 8M0086400 as the thermostat for the 4.2L V8 TDI Tier 3 diesel engine family.

A properly functioning thermostat helps the engine reach and maintain its designed operating temperature. A thermostat that is sticking, damaged, or no longer regulating coolant correctly should be replaced with the specified OEM component.

Because Mercury diesel engine configurations can vary by model and serial number, compatibility should be confirmed before ordering.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.

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Warranty Information

This product is covered under the manufacturer’s limited warranty when applicable. Warranty coverage varies by manufacturer and product type. Please review our Warranty Coverage & Product Protection page for full details.

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