{"product_id":"lycoming-starter-ring-gear-12-14-pitch-o-540-b-e-and-g-series-72566","title":"Lycoming Starter Ring Gear, 12\/14 Pitch, O-540-B, -E and -G Series, 72566","description":"\u003cp\u003eLycoming 72566 is a 12\/14 pitch starter ring gear. Lycoming lists it for the O-540-B, -E and -G series engines (standard cylinder flange models, parts catalogue PC-115-2) and for the O-540-F1B5 (O-540-F1B5 Illustrated Parts Catalog, June 2025). It is the ring gear only; the starter ring gear support assembly is a separate part.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMatch the gear tooth pitch to the support assembly part number: Lycoming Service Instruction 1141A, Table 1, lists which supports use 12\/14 pitch and which use 10\/12\u003c\/li\u003e\n\u003cli\u003eService Instruction 1141A gives the field replacement procedure: heat the new gear to approximately 450°F (232°C) and fit it with the tooth chamfer upward\u003c\/li\u003e\n\u003cli\u003eMade in the United States\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lycoming","offers":[{"title":"Default Title","offer_id":45912430248045,"sku":"72566","price":336.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/2041\/4573\/files\/72566.webp?v=1791115878","url":"https:\/\/www.pilotgear.com.au\/de-de\/products\/lycoming-starter-ring-gear-12-14-pitch-o-540-b-e-and-g-series-72566","provider":"Pilot Gear","version":"1.0","type":"link"}