0339044 Evinrude Johnson Gasket Thermostat | Genuine OEM BRP Outboard Part

🔧 Product Description

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

A genuine BRP cooling-system gasket installed between the thermostat assembly and cylinder-head passage on selected conventional and E-TEC outboards.

The gasket seals the thermostat flange to the cylinder head, preventing external water leakage and ensuring cooling water is directed through the thermostat.

⚙️ Key Features

• Genuine BRP Evinrude Johnson OEM thermostat gasket
• Correct BRP part number 0339044
• Seals the thermostat assembly to the cylinder head
• Used in multiple loop-charged and E-TEC thermostat systems
• Recmar and GLM replacements available

🚤 Compatibility

Commonly used on

• Two-cylinder and three-cylinder loop-charged cooling systems
• V4 and V6 thermostat assemblies
• Evinrude E-TEC thermostat systems

Documented applications include

• Evinrude E-TEC 40HP
• Evinrude E-TEC 50HP
• Evinrude E-TEC 55HP commercial
• Evinrude E-TEC 60HP
• Selected 90HP - 175HP engines using thermostat cover 0338632
• Evinrude 135HP 2005
• Evinrude 225HP 1997
• Additional V4 and V6 thermostat housings where 0339044 is specified
• Engine Type: Evinrude Johnson loop-charged two-stroke, direct-injection and E-TEC outboard
• Year Range: Engine and thermostat-housing dependent

🔌 Function

The gasket closes the joint between the thermostat assembly and cylinder head so cooling water cannot escape or bypass the thermostat.

⚠️ Common Signs of Failure

• Cooling water leaks around the thermostat flange
• Salt deposits form at the cylinder-head joint
• Engine runs too cold because water bypasses
• Engine overheats because the gasket is distorted
• Gasket tears during thermostat removal
• Mating surfaces will not seal after corrosion cleaning

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0339044 current BRP thermostat-gasket reference

OEM / Related Numbers

• 0339044
• 339044
• 0331188 related thermostat-cover O-ring
• 0338632 related thermostat cover
• 0435491 related thermostat
• 5005440 related E-TEC thermostat

Aftermarket / Verified Equivalents

• Recmar: REC339044
• GLM: 33070
• Direct aftermarket thermostat gasket: 339044

📦 Condition

• Genuine BRP part
• Brand new
• Supplied in original or equivalent packaging