RING PISTON (P/N 639577-a3) - New Surplus
P/N: 639577-a3
Category: Engine Parts
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 3 Available |
Product Description
The 639577-a3 is a piston ring for reciprocating aircraft engines, sealing the combustion chamber while controlling oil and transferring heat to the cylinder wall. Cast iron construction withstands high operating temperatures and compression loads during flight. Install during engine top-end overhauls to restore compression and performance.
Ring gap must be set per engine manufacturer specifications before installation. Verify part eligibility in the aircraft Illustrated Parts Catalog and ensure work follows 14 CFR Part 43 maintenance standards.
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.
Frequently Asked Questions
What is the RING PISTON (P/N 639577-a3)?
The 639577-a3 is a piston ring for reciprocating aircraft engines, sealing the combustion chamber while controlling oil and transferring heat to the cylinder wall. Cast iron construction withstands high operating temperatures and compression loads during flight.
What certifications or documentation come with the 639577-a3?
Depending on condition, the 639577-a3 may include an FAA 8130-3 Airworthiness Approval Tag, a yellow serviceable tag, or manufacturer documentation. Currently available in: New Surplus. Contact us for specific documentation details on the condition you need.
Can I use the 639577-a3 during an engine overhaul or annual inspection?
Yes, the RING PISTON can be used in engine overhauls and maintenance events. Always verify part compatibility against your engine's Type Certificate Data Sheet (TCDS) and Illustrated Parts Catalog (IPC) before installation.
What is the lead time for the 639577-a3?
In-stock items ship same business day when ordered before 3 PM EST. We also offer 24/7 AOG (Aircraft on Ground) support at (904) 998-9101 for urgent engine part needs.
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