Lycoming 15H21201 Shroud Tube Spring is a precision-engineered engine component designed for use in compatible Lycoming aircraft piston engines. The spring provides the required retaining force within the pushrod shroud tube assembly, helping maintain proper positioning and sealing of the related valve train components.

The shroud tube spring is part of the engine valve train enclosure system, supporting the correct fit and alignment of the pushrod tube assembly between the cylinder and crankcase. Proper spring tension helps maintain component stability while allowing controlled movement during engine operation.

Manufactured to Lycoming specifications, the 15H21201 spring is designed to withstand continuous vibration, temperature changes, and mechanical cycling experienced in aircraft piston engines. Its reliable spring characteristics help maintain proper installation pressure and long-term service performance.

The shroud tube spring should be inspected during cylinder removal, pushrod tube maintenance, or engine overhaul procedures. Replacement is recommended if loss of tension, corrosion, deformation, or damage is identified to ensure proper valve train sealing and assembly integrity.

Key Features

- Part Number: 15H21201
- Manufacturer: Lycoming Engines
- Component: Shroud Tube Spring
- Provides retaining force within the pushrod shroud tube assembly
- Helps maintain proper valve train component positioning
- Designed for vibration, temperature, and cyclic engine loads
- Precision-manufactured for reliable spring performance
- Suitable for compatible Lycoming aircraft engines