Description
SIERRA OMC / Mercury Cylinder Head O-Ring, 5-Pack – 18-7400-9 is a replacement cylinder-head sealing O-ring for specified OMC/BRP and Mercury marine engine applications.
This seal is used at the cylinder-head sealing interface and is sold five per package. Published service information identifies one O-ring per cylinder, making the package suitable for multi-cylinder head service while retaining spares as required.
Key Features
- Cylinder-head sealing O-ring for specified marine engine applications
- Published service usage is one O-ring per cylinder
- Five-piece package supports multi-cylinder head service
- Direct cross-reference to OMC/BRP 908194
- Also cross-referenced to Mercury 25-818573 and Mallory 9-63850
Specifications
- Sierra Part Number: 18-7400-9
- Package Quantity: 5
- Product Type: Cylinder-head O-ring
- Service Usage: One O-ring per cylinder
- Application: Specified OMC/BRP and Mercury marine engines
Interchange / Cross Reference
- OMC / BRP: 908194
- Mercury: 25-818573
- Mallory: 9-63850
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