0333572 Evinrude Johnson O-Ring | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Evinrude Johnson Lower Gearcase Plug and Shift-System O-Ring - Part Number: 0333572

A genuine BRP small lower-unit O-ring used on selected Evinrude and Johnson gearcase plug, shift-system and bearing-housing assemblies.

The precise position varies between gearcase designs. It commonly seals a lower-unit plug or internal shift-system component against gear-oil leakage and water entry.

⚙️ Key Features

• Genuine BRP Evinrude Johnson OEM gearcase O-ring
• Correct BRP part number 0333572
• Used in small and mid-range lower-unit assemblies
• Replaces earlier O-ring 0332681 in documented gearcases
• Sierra and Volvo Penta cross-references available

🚤 Compatibility

Commonly used on

• Evinrude Johnson lower gearcases
• Gearcase plugs and internal shift-system sealing positions

Typically suits

• Engine models:
• Evinrude and Johnson 4HP and 6HP gearcases
• Evinrude and Johnson 8HP, 9.9HP and 15HP
• Evinrude and Johnson 20HP, 25HP, 28HP, 30HP and 35HP
• Evinrude and Johnson 40HP, 48HP and 50HP
• Selected 60HP, 70HP, 88HP and 90HP gearcases using the same small O-ring
• Documented applications include 1986 25HP and 40HP, 1988 28HP, 1990 28HP and 40HP, 1994 25HP and 1995 50HP
• HP Range: Commonly 4HP - 50HP, with additional larger gearcase applications
• Engine Type: Evinrude Johnson carburetted two-stroke outboard
• Year Range: Approximately 1980s - 2000s, dependent on lower-unit design

🔌 Function

The O-ring seals a lower-unit plug or internal gearcase component and prevents water and lubricant from passing through the joint.

⚠️ Common Signs of Failure

• Lower-unit lubricant becomes milky
• Gear oil leaks around a plug or shift component
• Gearcase fails pressure or vacuum testing
• O-ring becomes cut, flattened or hardened
• Leakage begins after gearcase disassembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0333572 → Replaces 0332681 in compatible gearcases
• 0332681 earlier O-ring reference

OEM / Related Numbers

• 0333572
• 333572
• 0332681
• Volvo Penta: 3855081
• Related gearcase plug, shift-shaft and bearing-housing components

Aftermarket / Verified Equivalents

• Sierra: 18-7145
• Sierra: 18-7145-9 multipack
• Volvo Penta: 3855081
• Mallory: 9-76500
• Direct replacement lower-unit O-ring: 333572

📦 Condition

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