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