Gasket – Fits Yamaha Outboard Motors (677-14198-A1-00)
Gasket – Fits Yamaha Outboard Motors (677-14198-A1-00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Gasket – Fits Yamaha Outboard Motors (677-14198-A1-00)
Product Details
This replacement Gasket – Fits Yamaha Outboard Motors (677-14198-A1-00) is engineered for use in specific Yamaha outboard engines. It serves as a direct replacement for genuine Yamaha part number 677-14198-A1-00.
While this is a genuine Yamaha part, it is noted as obsolete in some catalogs, making this a critical component for repairs and maintenance of older compatible motors.
- Designed to create a secure seal in marine engine applications.
- Replaces obsolete part number 677-14198-A1-00.
- Includes one gasket per package.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 677-14198-A1-00 | Obsolete |
Technical Specs
- Product Type
- Gasket
- Dimensions
- 5.0" L x 4.0" W x 0.16" H
What’s in the Box
- 1 x Gasket (677-14198-A1-00)
Installation Notes
- Disconnect the battery and ensure the engine is completely cool before starting work.
- Access and carefully remove the component that the old gasket is seated under.
- Remove the old gasket, ensuring both mating surfaces are thoroughly cleaned of any residue or debris. A clean surface is critical for a proper seal.
- Position the new gasket, making sure it aligns perfectly with all bolt holes and passages.
- Re-install the cover or component, tightening bolts in a crossing pattern to the manufacturer's specified torque.
- Reconnect the battery, start the engine, and carefully check the area for any signs of leaks.
Troubleshooting & FAQ
How do I know if this gasket will fit my Yamaha outboard?
This part replaces Yamaha OEM number 677-14198-A1-00. The best way to ensure a match is to verify this part number against your engine's service manual or the original part itself. Do not order based on visual similarity alone, as subtle differences can affect the seal.
What are common signs of a failed gasket?
A failing gasket can cause fluid leaks (oil, fuel, or coolant), a loss of compression, engine overheating, or generally poor performance. Any visible cracks, brittleness, or physical damage to your old gasket indicates it's time for a replacement.
Is this an original Yamaha OEM gasket?
Yes, this is a genuine Yamaha part. However, it is considered obsolete, meaning it is no longer in active production or cataloged by the manufacturer for new models. It is essential for servicing older, compatible engines.
What is the purpose of this gasket in my engine?
Gaskets create a secure seal between two stationary engine components, preventing the leakage of fluids or gases. In an outboard motor, they are critical for sealing parts of the powerhead, gearcase, and fuel system to ensure proper pressure and fluid containment for optimal performance.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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