0343141 Evinrude Johnson Thermostat Cover | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Evinrude Johnson Thermostat Cover - Part Number: 0343141

A genuine BRP thermostat cover for selected 40HP-140HP Evinrude and Johnson two-stroke outboards.

The cover retains the thermostat, spring and pressure-control components against the cylinder-head or crankcase cooling passage.

Part number 0343141 replaces earlier thermostat-cover reference 0339207 on applicable engines.

⚙️ Key Features

• Genuine BRP OEM thermostat cover

• Correct OEM part number 0343141

• Common unprefixed number 343141

• Used on selected midrange and V4 engines

• Moulded marine cooling-system component

• Accepts the applicable thermostat and pressure-control spring

• GLM direct replacement available

🔄 Supersession & Cross Reference

OEM Supersession / Related Chain:

• 0339207

• 339207

• 0343141

• 343141

• 0769795

• 769795

Aftermarket / Verified Equivalents:

• GLM: 13240

• Pro Marine: 13240

• Aftermarket thermostat cover replacing 0339207 / 0343141 / 0769795

Related Components:

• V4 spring: 0343020

• Selected 40HP-70HP spring: 0343977

• Thermostat and gasket references vary by engine family

🚤 Compatibility

Commonly used on selected:

• 40HP-70HP two-stroke outboards

• 90-degree V4 engines

• 90HP-140HP outboards using the applicable thermostat arrangement

• Verified 1994 Johnson 140HP applications

• Verified 1995-1996 Evinrude and Johnson 130HP applications

• Engines whose cooling-system diagram lists 0339207 or 0343141

Important fitment note:

• Some engines use two thermostat covers—one for each cylinder bank.

• Confirm the required quantity and cover orientation.

• Spring, thermostat, gasket and fasteners are not necessarily included.

• Similar covers may use different internal depths or hose connections.

🔌 Function

The cover retains the thermostat and directs cooling-water flow through the thermostat and pressure-relief passages.

Common signs of damage:

• Cover is cracked

• Mounting ears are broken

• Sealing face is warped

• Bolt holes are damaged

• Salt corrosion affects the internal cavity

• Water leaks around the cover

• Spring seat is worn

• Thermostat components no longer remain correctly positioned

Installation considerations:

• Inspect the sealing face

• Clean all salt and gasket residue

• Confirm the thermostat and spring orientation

• Install a new gasket

• Replace damaged bolts

• Tighten evenly to avoid cracking the cover

• Do not overtighten plastic components

• Check carefully for cooling-water leaks

📦 Condition

• Genuine BRP Evinrude Johnson OEM part

• Brand new

• Thermostat, spring, gasket and hardware included only when specifically stated

• Supplied in genuine or equivalent protective packaging