OEM Fiber Washer 303630 is a factory original replacement sealing washer used primarily with carburetor plug screws on OMC, Johnson and Evinrude outboard motors. This small but important component provides the proper seal between the carburetor and plug, helping prevent fuel leakage and maintain proper carburetor operation.
Unlike a standard metal washer, the fiber material is designed to compress slightly when tightened, allowing it to conform to the mating surfaces and create an effective seal. This makes it particularly well suited for carburetor applications where proper sealing is essential.
Over time, the original fiber washer can become compressed, brittle, cracked, or damaged from fuel exposure, age, and repeated removal. Once a fiber washer has been compressed, reusing it may not provide the same dependable seal.
For this reason, replacing the washer when servicing or removing the associated carburetor plug screw is a simple and inexpensive way to help prevent leaks and ensure proper reassembly.
At Liquid Revolutions, we know how important the small components are when rebuilding and maintaining OMC, Johnson and Evinrude carburetors. A missing or damaged washer can turn a straightforward repair into an unnecessary troubleshooting problem, which is why parts like these are always good to keep in your parts box.
Key Features & Benefits
- OEM Factory-Original Part – Genuine replacement fiber washer for compatible applications
- Designed for Carburetor Plug Screws – Used primarily to seal these critical carburetor components
- Fiber Sealing Construction – Compresses to help create a secure seal
- Helps Prevent Fuel Leaks – Maintains proper sealing around carburetor components
- Ideal for Carburetor Rebuilds – Great to have on hand during cleaning, service, and repairs
- Simple Preventative Maintenance – Replace worn or previously compressed washers during reassembly
Why Replace the Fiber Washer?
When a carburetor plug screw or jet is removed for cleaning, inspection, or rebuilding, the existing fiber washer should be carefully inspected. An old washer may have already taken a compression set and may not seal as effectively when reused.
Installing a new Fiber Washer helps ensure the carburetor is properly sealed after service and reduces the chance of having to disassemble it again because of a leaking plug or fitting.
Whether you’re performing routine carburetor maintenance, completing a full rebuild, or simply replacing a missing sealing washer, the OEM Fiber Washer provides the factory original fit and sealing performance needed for a proper repair.
Replaces: 0769311
