Description
The Sierra 18-0347 Valve Cover Gasket is designed to provide a dependable seal for GM 153 and 181 CID (2.5L and 3.0L) marine engines, helping to prevent oil leaks and maintain engine cleanliness. Built for compatibility with a wide range of OEM and aftermarket part numbers, it offers a reliable replacement option for routine maintenance and repairs. This gasket supports proper sealing of the valve cover, contributing to consistent engine performance. Manufactured to meet or exceed original equipment standards, it ensures durability and a precise fit in demanding marine environments.
Features
- Designed for use with GM 153 and 181 CID (2.5L and 3.0L) engines
- Interchangeable with a wide range of OEM and aftermarket part numbers
- Helps prevent oil leaks and maintain engine cleanliness
- Supports proper sealing of the valve cover for reliable performance
- Includes one gasket per package
- For: GM 153 & 181 CID (2.5L & 3.0L)
- Premium quality for longer life
- Meets or exceeds manufacturers specs
- Backed by Sierra’s limited lifetime warranty






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