# 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

  

🔄 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

  

🚤 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

  

📦 Condition

  

• Genuine BRP part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 3.14 AUD
- **Vendor:** BRP (Evinrude/Johnson)
- **Tags:** Evinrude Johnson Outboard Parts | BRP Marine Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3.14 AUD | In stock |

## Images

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

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/0333572-o-ring)
> Updated: 2026-07-11