0335981 Evinrude Johnson 90-175hp Thermostat Seal | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Evinrude Johnson 60-Degree V4 and V6 Thermostat Seal - Part Number: 0335981

A genuine BRP moulded thermostat seal for selected 90HP to 175HP 60-degree V4 and V6 two-stroke outboards.

The seal locates the thermostat within the cylinder-head cooling passage and prevents water from bypassing around the thermostat body.

⚙️ Key Features

• Genuine BRP Evinrude Johnson OEM thermostat seal
• Correct BRP part number 0335981
• Designed for 60-degree V4 and V6 cooling systems
• Used on selected 90HP to 175HP engines

🚤 Compatibility

Commonly used on

• Evinrude Johnson 60-degree V4 and V6 thermostat housings

Typically suits

• Engine models:
• Evinrude and Johnson 90HP - approximately 1995-2006
• Evinrude and Johnson 100HP and 105HP commercial
• Evinrude and Johnson 115HP - approximately 1995-2006
• Evinrude and Johnson 135HP
• Evinrude and Johnson 150HP - approximately 1993-2006
• Evinrude and Johnson 175HP - approximately 1993-2006
• Selected 200HP and 250HP 60-degree engines where the 335981 seal is specified
• Johnson Fast Strike and Evinrude Intruder models
• Johnson OceanRunner and Evinrude Ocean Pro models
• HP Range: Commonly 90HP - 175HP, with selected applications through 250HP
• Engine Type: Evinrude Johnson 60-degree V4 and V6 two-stroke outboard
• Year Range: Approximately 1991 - 2006, dependent on cooling-system design

🔌 Function

The seal holds the thermostat in position and ensures cooling water passes through the thermostat rather than around its outside diameter.

⚠️ Common Signs of Failure

• Engine runs too cold because water bypasses the thermostat
• Engine overheats because the seal is distorted
• Cooling water leaks around the thermostat housing
• Seal becomes hardened, swollen or split
• Thermostat sits loosely in the cylinder-head passage

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0335981 current BRP thermostat-seal reference

OEM / Related Numbers

• 0335981
• 335981
• Related thermostat, thermostat cover and pressure-relief components

Aftermarket / Verified Equivalents

• Sierra: 18-1507
• WSM: 550-07
• Direct replacement thermostat seal: 335981

📦 Condition

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