Name: Recmar Mercury OptiMax 200-300HP Thermostat 130F 8M0067307
Brand: RECAMBIOS
SKU: REC8M0067307
Price: 24.84 GBP
Availability: InStock

Recmar Mercury OptiMax 200-300HP Thermostat 130F 8M0067307

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£24.84

Tax included.

Recmar Mercury OptiMax Thermostat

200–300 hp DFI | 130°F / 55°C

Replacement thermostat for selected Mercury and Mariner 200, 225, 250 and 300 hp OptiMax direct-fuel-injected two-stroke outboards using the 8M0057307/8M0067307 service family.

FITMENT CHECK: Confirm OptiMax DFI engine type and serial-specific part number. This is not for Verado or naturally aspirated four-stroke outboards.

Key Features

130°F / approximately 55°C thermostat
For selected 200–300 hp OptiMax DFI engines
Replaces the listed Mercury service references
Aftermarket Recmar; not genuine Mercury
One thermostat supplied

Technical Specs

Part type	Outboard cooling thermostat
Temperature	130°F / approximately 55°C
Engine cycle	Two-stroke DFI / OptiMax
Horsepower families	200, 225, 250, 300 hp where specified
4Boats SKU	REC8M0067307

Compatibility / Fitment Guide

Engine family	Application	Required check
Mercury/Mariner OptiMax 200 & 225 hp	3.0L DFI family where specified	Serial-specific diagram must list 8M0057307/8M0067307
Mercury/Mariner OptiMax 250 hp	Specified DFI variants	Confirm exact model and thermostat quantity
Mercury/Mariner OptiMax 300 hp	Specified DFI variants	Confirm exact model and thermostat quantity

Not for Verado, Pro XS four-stroke, naturally aspirated FourStroke or MerCruiser sterndrive engines. Some engines require two thermostats; this listing supplies one.

Part Number Cross Reference

Mercury / Mariner	8M0057307; 8M0067307; 885599003; 885599004; 8855991
Sierra	18-3606
Recmar / 4Boats SKU	REC8M0067307

References are for application identification. This listing is an aftermarket Recmar replacement, not a genuine OEM part.

Frequently Asked Questions

Will it fit a 250 hp Verado?
No. This thermostat is for specified OptiMax DFI two-stroke applications.

What temperature is it?
130°F, approximately 55°C.

How many do I need?
Check the parts diagram; some V6 engines use two. One is supplied.

Is it genuine Mercury?
No. It is an aftermarket Recmar replacement.

Before ordering: confirm OptiMax DFI, engine serial, OEM reference and quantity required.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

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Recmar Mercury OptiMax 200-300HP Thermostat 130F 8M0067307