Product Overview
Valve Stem Seal

Keep your engine purring like a kitten with the Sierra Valve Stem Seal. This essential component prevents oil leaks, ensuring optimal engine performance and longevity. Designed to meet or exceed OEM specifications, this durable seal offers a precise fit for a variety of Johnson/Evinrude, Mercruiser, OMC, and Volvo Penta engines, providing you with the peace of mind to enjoy countless hours on the water.
Key Features
- **Precision Fit:** Engineered to exact specifications (O.D.: 0.394", Shaft Size: 0.282", Width: 0.083") for seamless installation and reliable performance.
- **Prevents Oil Leaks:** Effectively seals the valve stem to prevent oil from entering the combustion chamber, maximizing engine efficiency and minimizing emissions.
- **Extends Engine Life:** By protecting critical engine components from oil contamination, this seal contributes to a longer-lasting engine.
- **Durable Construction:** Built with high-quality materials to withstand the harsh marine environment and resist wear and tear.
- **Wide Compatibility:** Compatible with Johnson/Evinrude Outboard, Mercruiser Stern Drive, OMC Stern Drive, and Volvo Penta engines.
- **Direct Replacement:** Replaces part number 26-34217, simplifying the maintenance process.
- **Sierra Quality:** Backed by Sierra's reputation for manufacturing reliable marine engine parts.
Specifications
The Captain's Take
As a seasoned captain, I know the importance of reliable engine performance. The Sierra Valve Stem Seal is a small but mighty component that plays a crucial role in preventing oil leaks and maintaining optimal engine health. It's a simple, affordable upgrade that can save you from costly repairs down the line. I highly recommend it for any boater who values smooth sailing and peace of mind.