5006373 Evinrude Johnson Seal Kit AY - GC | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Evinrude Johnson Mechanical-Shift Gearcase Seal Kit - Part Number: 5006373

A genuine BRP comprehensive lower-unit seal kit for selected V4, V6 and V8 Johnson and Evinrude mechanical-shift gearcases.

The kit contains the oil seals, O-rings and sealing washers required to reseal the driveshaft, propeller shaft, shift-shaft and bearing-carrier areas. It consolidates numerous earlier OMC gearcase-seal kit numbers.

⚙️ Key Features

• Genuine BRP complete gearcase seal kit
• Correct OEM reference 5006373
• Services mechanical-shift V4, V6 and V8 gearcases
• Replaces numerous earlier seal-kit references
• Sierra, GLM, Mallory and aftermarket kits available

🚤 Compatibility

Commonly used on

• Johnson and Evinrude large mechanical-shift gearcases
• V4, V6 and V8 two-stroke outboards
• Sea Drive mechanical-shift lower units

Typically suits

• Engine models:
• 75HP V4 - selected 1978-1984 models
• 85HP, 88HP and 90HP
• 100HP, 110HP, 115HP and 120HP
• 125HP, 140HP and 150HP
• 155HP, 175HP, 185HP and 200HP
• 225HP and 235HP
• Selected 250HP and 300HP mechanical-shift gearcases
• 1.6L, 1.8L, 2.0L and 4.0L Sea Drive units
• HP Range: Approximately 75HP - 300HP
• Engine Type: V4, V6 or V8 two-stroke outboard
• Year Range: Approximately 1978-2006 for applicable mechanical-shift gearcases

🔌 Function

The seals retain gear lubricant inside the lower unit and prevent water from entering around the rotating and sliding shafts.

⚠️ Common Signs of Failure

• Gear oil appears milky
• Water drains from the gearcase
• Oil leaks behind the propeller
• Oil appears around the driveshaft or shift shaft
• Gearcase fails a pressure or vacuum test
• Fishing line damages the propeller-shaft seals
• O-rings become flattened or brittle
• Lubricant level repeatedly falls

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 5006373 → Replaces 5000411
• 5006373 → Replaces 0439141 and 0438278
• 5006373 → Replaces 0437752 and 0437753
• 5006373 → Replaces 0434516
• 5006373 → Replaces 0396353 and 0396354

OEM / Related Numbers

• 5006373
• 5000411
• 0439141
• 0438278
• 0437752
• 0437753
• 0434516
• 0396353
• 0396354

Aftermarket / Verified Equivalents

• Sierra: 18-2623
• Sierra: 18-8384
• GLM: 87600
• Mallory: 9-74106
• Hardin / Marine aftermarket: 700-87600
• Offshore Marine Parts: 31113223

📦 Condition

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