# 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

## Details

- **Price:** 23.0 AUD
- **Vendor:** BRP
- **Tags:** Evinrude Johnson Outboard Parts | BRP Marine Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 23.00 AUD | In stock |

## Images

- 0343141 Evinrude Johnson Thermostat Cover | Genuine OEM BRP Outboard Part
- 0343141 Evinrude Johnson Thermostat Cover | Genuine OEM BRP Outboard Part
- 0343141 Evinrude Johnson Thermostat Cover | Genuine OEM BRP Outboard Part
- 0343141 Evinrude Johnson Thermostat Cover | Genuine OEM BRP Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/343141-0343141-thermostat-cover)
> Updated: 2026-07-12