0313446 Evinrude Johnson O-Ring | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Propeller-Shaft Bearing Housing O-Ring - Part Number: 0313446

A genuine BRP large-diameter O-ring used to seal the propeller-shaft bearing housing or carrier into selected Evinrude and Johnson lower gearcases.

The seal fits around the outside of the bearing housing and prevents gear lubricant escaping while blocking water from entering the lower unit. Its approximate inside diameter is 3.315 inches.

⚙️ Key Features

• Genuine BRP OEM bearing-housing O-ring

• Correct OMC part number 0313446

• Later BRP reference 0765593

• Fits selected V4 and midrange gearcases

• Cross-references with Sierra, GLM, Mallory and WSM seals

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 0765593 → Supersedes 0313446

• 0313446 original OMC bearing-housing O-ring

OEM / Related Numbers:

• 0313446

• 313446

• 0765593

• 765593

Aftermarket / Verified Equivalents:

• Sierra: 18-7127

• GLM: 82370

• Mallory: 9-76527

• WSM: 445-130

🚤 Compatibility

Commonly used on:

• Evinrude and Johnson propeller-shaft bearing carriers

• V4 90-degree outboard gearcases

• Selected midrange lower-unit assemblies

Typically suits:

• Engine models:

• Evinrude / Johnson 40HP gearcases

• Evinrude / Johnson 48HP gearcases

• Evinrude / Johnson 50HP gearcases

• Evinrude / Johnson 55HP gearcases

• Evinrude / Johnson 60HP gearcases

• Evinrude / Johnson 65HP gearcases

• Evinrude / Johnson 70HP gearcases

• Evinrude / Johnson 75HP gearcases

• Evinrude / Johnson 85HP V4 gearcases

• Evinrude / Johnson 88HP V4 gearcases

• Evinrude / Johnson 90HP V4 gearcases

• Evinrude / Johnson 100HP V4 gearcases

• Evinrude / Johnson 110HP V4 gearcases

• Evinrude / Johnson 112HP V4 gearcases

• Evinrude / Johnson 115HP V4 gearcases

• Evinrude / Johnson 120HP V4 gearcases

• Evinrude / Johnson 125HP V4 gearcases

• Evinrude / Johnson 130HP V4 gearcases

• Evinrude / Johnson 135HP V4 gearcases

• Evinrude / Johnson 140HP V4 gearcases

• HP Range: 40HP - 140HP

• Engine Type: Evinrude / Johnson midrange and V4 outboard

• Year Range: Model and gearcase controlled

🔌 Function

The O-ring seals the bearing carrier to the gearcase housing, retaining lubricant and preventing outside water from entering around the carrier.

Common signs of failure:

• Gear oil leaking around the bearing carrier

• Milky or water-contaminated lubricant

• Gearcase fails pressure or vacuum testing

• O-ring flattened, pinched or hardened

• Corrosion beneath the carrier sealing surface

📦 Condition

• Genuine BRP part

• Brand new

• Supplied in original or equivalent packaging