YAMAHA VALVE COVER GASKET 663-1193-00
SKU: REC663-1193-00
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Head Cover Gasket | Replaces Yamaha 663-11193-00
Ensure a leak-free seal on your Yamaha outboard’s cylinder head with this high-quality aftermarket head cover gasket. This part is a direct replacement for the original Yamaha "Gasket, Head Cover 1," providing an airtight and watertight seal for the upper engine assembly.
Designed for 2-stroke durability, this gasket is manufactured to withstand the specific vibration and thermal demands of mid-range Yamaha outboards.
Part Number Cross-Reference
This aftermarket unit is a 100% compatible replacement for the following OEM and major manufacturer part numbers:
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Yamaha OEM: 663-11193-00-00
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Yamaha OEM: 663-11193-A0-00
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Mercury/Mariner: 27-81254M / 81254M
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Recmar: REC663-11193-00
Fitment & Compatibility
This gasket is primarily used on Yamaha 2-Stroke 55HP models, as well as select commercial and multi-cylinder variants from the late 1980s through the late 1990s.
| Horsepower | Model / Series | Year Range |
| 55 HP | CV55 / C55 / 55BE / 55BM | 1989 – 1995 |
| 48 HP | E48 (Commercial / Enduro) | 1995 – 2000 |
| 60 HP | 60 (2-Cylinder Mercury/Mariner Cross-over) | Various |
Tech Tip: This is the Head Cover Gasket (the outer cover), not the main Cylinder Head Gasket. It is often included in the Powerhead Rebuild Kit # 663-W0001-02.
Features
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Exact Profile Match: Precision stamped to ensure all bolt holes and water passages align perfectly with the 663-series head cover.
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Marine-Grade Materials: High-temp resistant composite designed for the harsh cooling cycles of 2-stroke engines.
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Interchangeability: Fully compatible with both Yamaha-branded and Mercury-branded (Mariner) versions of the 55HP twin-cylinder block.