--- product_id: 419753434 title: "TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00" brand: "tongass" price: "$16.39" currency: USD in_stock: true reviews_count: 13 url: https://www.desertcart.us/products/419753434-tongass-exact-replacement-for-yamaha-90430-08020-00-and-90430 store_origin: US region: United States of America --- # Durable Japanese hard fiberboard Exact OEM fit for Yamaha models 20-pack for multiple oil changes TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 **Brand:** tongass **Price:** $16.39 **Availability:** ✅ In Stock ## Summary > 🛥️ Seal the deal with confidence — never let a leak slow your adventure! ## Quick Answers - **What is this?** TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 by tongass - **How much does it cost?** $16.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/419753434-tongass-exact-replacement-for-yamaha-90430-08020-00-and-90430) ## 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 - • **Bulk Pack Convenience:** 20 gaskets per pack to keep your lower gearcase leak-proof all season long. - • **Precision OEM Compatibility:** Seamlessly replaces Yamaha 90430-08020-00 & 90430-08003-00 parts without compromise. - • **Premium Fiberboard Material:** Crafted from Japanese hard fiberboard for superior oil resistance and perfect compression. - • **Trusted Aftermarket Quality:** Exceeds OEM durability standards, ensuring a reliable seal and peace of mind on every ride. - • **Universal Yamaha 4-Stroke Fit:** Compatible with a wide range of Yamaha 4-stroke outboard motors including 150HP and 175HP models. ## Overview TonGass offers an exact replacement gasket set for Yamaha lower gearcase oil drain plugs, crafted from durable Japanese hard fiberboard. This 20-pack fits multiple Yamaha 4-stroke outboard motors, providing a reliable, OEM-spec seal that prevents oil leaks and water intrusion, ensuring your boat’s performance stays flawless season after season. ## Features - EXACT REPLACEMENT FOR YAMAHA 90430-08020-00 & 90430-08003-00 - These gaskets are an exact replacement for Yamaha part number 90430-08020-00. Alternative part numbers include 90430-08003-00, 90430-08003, 90430-08801-00, and 604-45342-00-00 (superseded by 90430-08003-00). These part numbers have the same specifications and make, having a 5/16 inch (8mm) interior diameter. - LOWER GEARCASE OIL DRAIN GASKETS - Sometimes changing lower unit oil several times per season also means changing gaskets - or losing them. Don’t let leaks stop you. Always have several lower unit gaskets on hand. Our 20-pack lower gear case oil drain plug gaskets will have your back. - JAPANESE HARD FIBERBOARD GASKETS - Made from hard and watertight materials, these black fiber gaskets are hard yet lightweight. They are durable and compresses at the same rate as OEM gaskets, creating the perfect seal. Similar to other fiber gaskets, these gaskets are also resistant to oils, preventing oil leaks that will eventually cause the entry of water. - FITS FOR YAMAHA 4-STROKE OUTBOARD MOTORS - These gaskets are almost universally compatible with Yamaha’s 4-stroke outboard motor models, but they’re also compatible with several older models and other parts of the motor. Compatible with Yamaha models include Outboard 150HP F150LCA 2019 and Outboard 175HP F175XCA 2020. - RELIABLE AFTERMARKET REPLACEMENT PARTS BY TONGASS - Our line of aftermarket replacement parts meets and even exceeds OEM specifications for quality and durability. You can count on our reliable aftermarket replacement lower unit gaskets to provide an excellent seal for longer. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09RF4FZXM | | Best Sellers Rank | #66,644 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #106 in Boat Engine Parts | | Brand Name | TonGass | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (396) 4.6 out of 5 stars | | Item Highlight | Lower Gear Case Oil Drain Gaskets, Japanese Hard Fiberboard Gaskets Fits for Yamaha 4-Stroke Outboard Motors | | Item Shape | Round | | Item Thickness | 0.06 inches | | Manufacturer | TonGass | | Material Type | Fiberboard | | Model | 20pk-Black | | Number Of Items | 20 | | Part Number | sealgasketyachttank20pk | | Upc | 704260322772 | ## Product Details - **Brand:** TonGass - **Color:** Black - **Item Thickness:** 0.06 inches - **Material:** Fiberboard - **Shape:** Round ## Images ![TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 - Image 1](https://m.media-amazon.com/images/I/71jfzyD8KQL.jpg) ![TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 - Image 2](https://m.media-amazon.com/images/I/61g0fRueTzL.jpg) ![TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 - Image 3](https://m.media-amazon.com/images/I/71bkeFhm3eL.jpg) ![TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 - Image 4](https://m.media-amazon.com/images/I/71E+xwUfU2L.jpg) ![TonGass Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 - Image 5](https://m.media-amazon.com/images/I/712BZihFIcL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Yamaha F60TLR lower unit drain plug and fill plug gasket *by on Reviewed in the United States February 11, 2026* Fit good and shipped fast ### ⭐⭐⭐⭐⭐ No leaks! *by on Reviewed in the United States January 17, 2026* Works perfectly for my 2015 Yamaha 200hps lowers. No leak ### ⭐⭐⭐⭐⭐ Exactly the right part *by on Reviewed in the United States October 5, 2026* As advertised ## Frequently Bought Together - TonGass (20-Pack, Black) Exact Replacement for Yamaha 90430-08020-00 & 90430-08003-00 - Lower Gear Case Oil Drain Gaskets - Japanese Hard Fiberboard Gaskets - Fits for Yamaha 4-Stroke Outboard Motors - Yamaha Original OEM Yamalube Acc-GEARL-UB-QT Marine Lower Unit Gearcase Lube Yamalube OEM - 2 Quarts - 6 Pcs 90430-14M09-00 90430-14228-00 Engine Oil Drain Plug Gasket for Yamaha Outboard F100 F115 F150 F15 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/419753434-tongass-exact-replacement-for-yamaha-90430-08020-00-and-90430](https://www.desertcart.us/products/419753434-tongass-exact-replacement-for-yamaha-90430-08020-00-and-90430) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-25*