# 339044 Evinrude Johnson Thermostat gasket | Genuine OEM BRP Outboard Part

🔧 Product Description

  

Genuine BRP Evinrude Johnson Thermostat-to-Cylinder-Head Gasket - Part Number: 0339044

  

A genuine BRP thermostat gasket used on selected Evinrude and Johnson two-stroke outboards.

  

The commonly listed six-digit reference is 339044. The full OEM number is 0339044.

  

The gasket seals the thermostat housing or cover against the cylinder-head cooling passage, preventing water loss and cross-leakage around the thermostat.

  

⚙️ Key Features

  

• Genuine BRP OEM thermostat gasket

• Correct full OEM number 0339044

• Common unprefixed number 339044

• Thermostat-to-cylinder-head sealing application

• Precision die-cut gasket profile

• Used on selected direct-injection and conventional two-stroke engines

• Recmar replacement available

  

🔄 Supersession & Cross Reference

  

OEM / Related Numbers:

  

• 0339044

• 339044

• OEM Description: Thermostat Gasket

• Alternate Description: Thermostat-to-Cylinder-Head Gasket

• Thermostat, cover and pressure-control components vary by engine model

  

Aftermarket / Verified Equivalents:

  

• Recmar: REC339044

• Generic thermostat gasket replacing 0339044

• Aftermarket engine-gasket sets may include the same thermostat gasket

  

🚤 Compatibility

  

Verified catalogue examples include:

  

• 2000 Evinrude 150HP FFI / FICHT engines

• 2010 Evinrude 150HP E-TEC engines

• Additional V6 direct-injection and E-TEC cylinder-head assemblies whose diagrams list 0339044

  

Important fitment note:

  

• Confirm the gasket outline and bolt-hole arrangement.

• Thermostat covers and cylinder heads changed between FICHT, E-TEC and carburetted engine families.

• Do not reuse a compressed thermostat gasket.

  

🔌 Function

  

The gasket seals the thermostat cooling-water passage.

  

Common signs of gasket failure:

  

• Water leaks from the thermostat cover

• Salt deposits appear around the joint

• Cooling pressure falls

• Air enters the cooling passage

• Gasket is torn or compressed unevenly

• Cylinder-head sealing surface is corroded

• Engine temperature differs between cylinder banks

  

Installation considerations:

  

• Remove all old gasket material

• Clean the cover and cylinder-head surface

• Inspect for corrosion and warping

• Install the gasket dry unless the service manual specifies sealant

• Tighten the cover in the correct sequence

• Replace the thermostat and seals where required

• Check for water leakage after starting

• Compare cylinder-bank operating temperatures

  

📦 Condition

  

• Genuine BRP Evinrude Johnson OEM part

• Brand new

• Supplied in genuine or equivalent protective packaging

## Details

- **Price:** 2.9 AUD
- **Vendor:** BRP (Evinrude/Johnson)
- **Tags:** Evinrude Johnson Outboard Parts | BRP Marine Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2.90 AUD | In stock |

## Images

- 339044 Evinrude Johnson Thermostat gasket | Genuine OEM BRP Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/339044-thermostat-gasket)
> Updated: 2026-07-12