P/N: 17c21191
Category: Knobs, Handles & Locks
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| Condition | Price | Stock |
|---|---|---|
| New Surplus | $6.00 | 2 Available |
The 17c21191 is a valve retention key for Lycoming aircraft engines. This steel key locks exhaust valve components in the cylinder head valve train, preventing rotation and maintaining proper valve alignment during engine operation. Used during Lycoming cylinder head assembly and maintenance procedures to secure exhaust valve stems and related components.
Installation requires following Lycoming maintenance manuals and verifying applicability through the engine's Illustrated Parts Catalog before assembly.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
The 17c21191 is a valve retention key for Lycoming aircraft engines. This steel key locks exhaust valve components in the cylinder head valve train, preventing rotation and maintaining proper valve alignment during engine operation.
The 17c21191 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
The 17c21191 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.