Aftermarket Powerhead Base Gasket Mercury 25HP 4-Stroke 27-8M0069692
65W-11351a
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Mercury 25HP Powerhead Base Gasket
Aftermarket replacement | 27-8M0069692
This aftermarket powerhead/cylinder base gasket is designed for selected Mercury and Mariner 25HP FourStroke outboards. It provides the sealing interface required when the powerhead or cylinder base is removed.
Key Features
- ✔ Aftermarket replacement for listed OEM references
- ✔ For selected 25HP FourStroke outboards
- ✔ Marine-use gasket material
- ✔ Direct-pattern service replacement
- ✔ One gasket supplied
Technical Specs
| Part type | Powerhead / cylinder base gasket |
| Typical application | 25HP FourStroke |
| Quantity | 1 gasket |
| Supply type | Aftermarket |
| Primary OEM reference | 27-8M0069692 |
| 4Boats SKU | 65W-11351a |
Compatibility / Fitment Guide
Listed for selected Mercury/Mariner 25HP FourStroke and BigFoot applications using 27-8M0069692 / 825231-series references. Related Yamaha 65W-series platforms may share references. Verify the serial-number-specific parts diagram.
Part Number Cross Reference
| Mercury / Quicksilver | 27-8M0069692; 8M0069692; 8252311; 8252312 |
| Yamaha | 65W-11351-00; 65W-11351-10 |
| Volvo cross-reference | 8252312 |
| Parsun | F25-00000013 |
| 4Boats SKU | 65W-11351a |
Cross-references are for identification. This item is an aftermarket replacement.
Questions & Answers
Is this genuine Mercury?
No. It is an aftermarket gasket.
Does it fit every Mercury 25HP?
No. Confirm the engine family and original reference.
How many gaskets are supplied?
One gasket.
Can the old gasket be reused?
No. Install a new gasket whenever the joint is dismantled.
Note: Inspect the mating faces and follow the correct tightening sequence and torque in the engine workshop manual.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
