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Aircraft Spruce & Specialty Co.
Corona, CA | Chicago, IL
Wasilla, AK | Peachtree City, GA
Brantford, ON Canada
FREE SHIPPING ON ORDERS OVER $350 (USA ONLY - SOME EXCLUSIONS APPLY) | 877-4-SPRUCE
From $8.95 to $11.50
| HELI-COIL INSERT 18MM X 13/16 "
| HELI-COIL INSERT 18MM X 1/2 "
18mm long Heli-Coil aviation grade spark plug inserts.
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We ordered an 18 mm helicoil for a Lycoming engine. The Helicoil came in a bag labeled 18 mm but definitely was not 18 mm. it measured more than 20 mm on the ID. We had an additional 2 days down time on this engine while we procured the correct helicoil.
September 30, 2019
Q: What material is this heli-coil insert made from? Is it brass?
Per Vendor: 08-13859 is made of stainless steel. Brass cannot be used on Aircraft Engines as the temperature would melt the brass in an Aircraft Engine.