Name: Recmar Mercury V6 V8 175-300HP Thermostat 140F 8M0162139
Brand: RECAMBIOS
SKU: REC8M0162139
Price: 49.69 GBP
Availability: InStock

Recmar Mercury V6 V8 175-300HP Thermostat 140F 8M0162139

Dispatched in 2-3 days

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£49.69

Tax included.

Recmar Mercury V6 / V8 FourStroke Thermostat

175–300 hp & 450R | Serial 2B529482+

Replacement 140°F thermostat for selected Mercury 3.4L V6 and 4.6L V8 four-stroke outboards, including the specified 450R application, from the published serial threshold.

FITMENT CHECK: Engine architecture and serial are mandatory. This is an outboard thermostat, not a MerCruiser inboard/sterndrive thermostat.

Key Features

140°F / 60°C thermostat specification
For Mercury 3.4L V6 and 4.6L V8 four-stroke platforms
Published serial threshold 2B529482 and above
Aftermarket Recmar; not genuine Mercury
One thermostat supplied

Technical Specs

Part type	Outboard cooling thermostat
Temperature	140°F / 60°C
Engine architecture	3.4L V6 / 4.6L V8 four-stroke
Serial threshold	2B529482 and above
4Boats SKU	REC8M0162139

Compatibility / Fitment Guide

Engine family	Application	Required check
Mercury 175–225 hp	Selected 3.4L V6 four-stroke applications	Serial 2B529482+ and parts diagram lists 8M0162139
Mercury 250–300 hp	Selected 4.6L V8 FourStroke/Verado/Pro XS variants	Serial 2B529482+; confirm exact model
Mercury Racing 450R	Specified four-stroke application	Confirm serial and thermostat quantity

Not for earlier serials, OptiMax two-strokes, legacy inline-six Verado thermostats or MerCruiser engines. Some V6/V8 engines use multiple thermostats; one is supplied.

Part Number Cross Reference

Mercury / Quicksilver	8M0162139
Earlier associated reference	8M0137816 — verify serial supersession
Recmar / 4Boats SKU	REC8M0162139

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

Frequently Asked Questions

Will it fit an OptiMax?
No. It is for the later 3.4L V6/4.6L V8 four-stroke platform.

What is the minimum serial?
The published threshold is 2B529482; confirm the exact parts diagram.

How many are supplied?
One thermostat. Check how many your engine requires.

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

Before ordering: confirm 3.4L V6 or 4.6L V8 four-stroke, serial 2B529482+ and thermostat quantity.

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

Free delivery for most items over £150.

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Recmar Mercury V6 V8 175-300HP Thermostat 140F 8M0162139