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LYCOMING ENGINES
652 Oliver Street
Williamsport, PA 17701
1-800-258-3279

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knowledge base

(L)TO-360-E1A6D Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: (L)TO-360-E1A6D Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-(L)TO-360-E1A6D
knowledge base

IO-390-A Series Engine Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: IO-390-A Series Engine Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-IO-390-A Rev 1
knowledge base

AEIO-390-A Series Engine Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: AEIO-390-A Series Engine Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-AEIO-390-A Rev 1
knowledge base

IO-390-C Series Engine Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: IO-390-C Series Engine Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-IO-390-C Rev 1

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knowledge base

IO-390-D Series Engine Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: IO-390-D Series Engine Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-IO-390-D Rev 1
knowledge base

O-540-F1B5 Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: O-540-F1B5 Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-O-540-F1B5 (Supersedes parts catalog PC-515-2)
knowledge base

TIO-360-C1A6D Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: TIO-360-C1A6DIllustrated Parts Catalog DOCUMENT PART NUMBER: PC-TIO-360-C1A6D
knowledge base

TIO-540-AK1A Illustrated Parts Catalog

DATE RELEASED: June 2025 TITLE: TIO-540-AK1A Illustrated Parts Catalog DOCUMENT PART NUMBER: PC-TIO-540-AK1A
knowledge base

Service Instruction No. 1290F

Service Instruction No. 1290F DATE: July 24, 2009 WEBSITE PUBLISH DATE: June 17, 2025 due to frequent requests. MODELS AFFECTED: All Lycoming wide cylinder flange engines identified by the suffix “A” or “E” after the engine serial number and incorporating body-fit thru-studs such as: O, IO, AIO, AEIO and LIO-320 series engines O, IO, AIO, AEIO, HIO, LIO, TO and TIO-360 series engines O, IO, AEIO...

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Lycoming Engines is an Operating Division of Avco Corporation. ©2025 Avco Corporation.

LYCOMING ENGINES
652 Oliver Street
Williamsport, PA 17701
1-800-258-3279