# 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

  

🔄 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

  

🚤 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

  

📦 Condition

  

• Genuine BRP part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 242.63 AUD
- **Vendor:** BRP
- **Tags:** Evinrude Johnson Outboard Parts | BRP Marine Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 242.63 AUD | In stock |

## Images

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

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/5006373-seal-kit-ay-gc)
> Updated: 2026-07-12