---
product_id: 207021695
title: "SEI Marine Products-Compatible with - OMC Cobra Lower Gearcase Seal Kit 0985612 2.3 and 3.0L 1986-1990 4-1/4\" Case"
brand: "sei marine products"
price: "¥12991"
currency: JPY
in_stock: true
reviews_count: 2
url: https://www.desertcart.jp/products/207021695-sei-marine-products-compatible-with-omc-cobra-lower-gearcase-seal
store_origin: JP
region: Japan
---

# 4-1/4" diameter OE#: 0985612 Fits 2.3 & 3.0L SEI Marine Products-Compatible with - OMC Cobra Lower Gearcase Seal Kit 0985612 2.3 and 3.0L 1986-1990 4-1/4" Case

**Brand:** sei marine products
**Price:** ¥12991
**Availability:** ✅ In Stock

## Summary

> 🚤 Seal the Deal with Confidence!

## Quick Answers

- **What is this?** SEI Marine Products-Compatible with - OMC Cobra Lower Gearcase Seal Kit 0985612 2.3 and 3.0L 1986-1990 4-1/4" Case by sei marine products
- **How much does it cost?** ¥12991 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/207021695-sei-marine-products-compatible-with-omc-cobra-lower-gearcase-seal)

## Best For

- sei marine products enthusiasts

## Why This Product

- Trusted sei marine products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit:** Engineered to replace OE#: 0985612 seamlessly.
- • **Easy Installation:** User-friendly design for quick and hassle-free setup.
- • **Durable Construction:** Built to withstand the rigors of marine environments.
- • **Enhanced Performance:** Ensures optimal gearcase function for a smoother ride.
- • **Versatile Compatibility:** Designed for 2.3L and 3.0L OMC Cobra sterndrives (1986-1990).

## Overview

The SEI Marine Products-Compatible OMC Cobra Lower Gearcase Seal Kit 0985612 is a high-quality replacement designed for 4-cylinder OMC Cobra sterndrives from 1986-1990, featuring a 4-1/4" bullet diameter gearcase. This kit guarantees a perfect fit and enhanced performance, making it an essential upgrade for marine enthusiasts.

## Description

SEI Marine Products-Compatible with - OMC Cobra Lower Gearcase Seal Kit 0985612 2.3 and 3.0L 1986-1990 4-1/4" Case

## Features

- This seal kit replaces OE#: 0985612 and fits the 4 cylinder 2.3 and 3.0 liter OMC Cobra sterndrives from 1986-1990 with the 4-1/4" bullet diameter gearcase.

## Images

![SEI Marine Products-Compatible with - OMC Cobra Lower Gearcase Seal Kit 0985612 2.3 and 3.0L 1986-1990 4-1/4" Case - Image 1](https://m.media-amazon.com/images/I/41q7tc1eVPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    most things fit, but hexID? on flat o-ring? doesn't match previous/existing o-ring
  

*by A***R on Reviewed in the United States 🇺🇸 on August 26, 2022*

Most things fit, but hexID? on flat o-ring? for under head of screw doesn't match previous/existing o-ring.Also, one o-ring was same overall size, but thinner, so I didn't use it as it would have less compression in the groove between mating parts.

### ⭐⭐⭐⭐⭐ 







  
  
    fit great
  

*by T***. on Reviewed in the United States 🇺🇸 on August 2, 2019*

fit great

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-16*