---
product_id: 529541526
title: "TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8\"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors"
brand: "tongass"
price: "€ 17.76"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/529541526-tongas-24-pack-blue-and-black-lower-unit-drain-screw
store_origin: ES
region: Spain
---

# Universal Yamaha fit 24-pack precision fit OEM-grade durability TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors

**Brand:** tongass
**Price:** € 17.76
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal your ride, sail with pride!

## Quick Answers

- **What is this?** TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors by tongass
- **How much does it cost?** € 17.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/529541526-tongas-24-pack-blue-and-black-lower-unit-drain-screw)

## Best For

- tongass enthusiasts

## Why This Product

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

## Key Features

- • **Perfect OEM Match:** Exact fit for Yamaha 90430-08020-00 & 90430-08003-00 parts, no compromises
- • **Bulk Pack Advantage:** 24 gaskets to keep your outboard motor maintenance on point without last-minute runs
- • **Leak-Proof Confidence:** Engineered Japanese fiber seals for watertight protection every time
- • **Marine-Grade Toughness:** Oil-resistant, high-strength fiberboard built to withstand harsh saltwater conditions
- • **Versatile Compatibility:** Fits Yamaha 4-stroke outboards including 150HP F150LCA (2019) & 175HP F175XCA (2020)

## Overview

TonGas offers a 24-pack of premium aftermarket lower unit drain screw gaskets designed as exact replacements for Yamaha part numbers 90430-08020-00 and 90430-08003-00. Crafted from durable Japanese hard fiberboard, these oil-resistant gaskets ensure a secure, leak-proof seal for Yamaha 4-stroke outboard motors, including popular 150HP and 175HP models. Engineered to meet or exceed OEM standards, TonGas gaskets provide reliable, long-lasting protection for your marine engine’s lower unit.

## Description

Full description not available

## Features

- Exact Replacement for Yamaha Drain Screw Gaskets – Designed as a direct replacement for Yamaha part numbers 90430-08020-00 & 90430-08003-00, with compatibility across multiple models. Features a 5/16-inch (8mm) inner diameter.
- Lower Gearcase Oil Drain Plug Gaskets – Prevent leaks and ensure a secure seal when changing lower unit oil. This 24-pack of outboard motor drain gaskets is essential for maintenance and long-term engine protection.
- Durable Japanese Hard Fiberboard Gaskets – Made from high-strength, oil-resistant fiber material, these black gaskets provide a watertight seal, matching OEM compression rates for reliable performance in marine environments.
- Compatible with Yamaha 4-Stroke Outboard Motors – Designed for Yamaha outboard models, including Outboard 150HP F150LCA (2019) and Outboard 175HP F175XCA (2020), as well as various older models.
- High-Quality Aftermarket Marine Parts – Engineered to meet or exceed OEM standards, these lower unit oil drain gaskets offer superior durability and sealing, ensuring long-lasting protection for your outboard motor. PLEASE NOTE: This is an aftermarket part produced by TonGass meeting OEM quality (based on in-house testing). We have no affiliation with or endorsement from any of the manufacturers mentioned

## Product Details

- **Brand:** TonGass
- **Material:** Fiberboard
- **Color:** Multicolored
- **Shape:** Round
- **Manufacturer:** TonGass

## Images

![TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors - Image 1](https://m.media-amazon.com/images/I/71I4RIupEkL.jpg)
![TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors - Image 2](https://m.media-amazon.com/images/I/71ZlodTfx8L.jpg)
![TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors - Image 3](https://m.media-amazon.com/images/I/71iolrHMK9L.jpg)
![TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors - Image 4](https://m.media-amazon.com/images/I/712BZihFIcL.jpg)
![TonGas (24-Pack, Blue & Black) Lower Unit Drain Screw Gaskets Replacement for Yamaha 90430-08020-00 & 90430-08003-00, Mercury Marine 3/8"-16 Drain Fill Screw, Gear Case Oil Seal for Outboard Motors - Image 5](https://m.media-amazon.com/images/I/71KktPajQ-L.jpg)

## Available Options

This product comes in different **Model** options.

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**Shop now:** [https://www.desertcart.es/products/529541526-tongas-24-pack-blue-and-black-lower-unit-drain-screw](https://www.desertcart.es/products/529541526-tongas-24-pack-blue-and-black-lower-unit-drain-screw)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-18*