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

KNOWLEDGE BASE

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Parts Catalog | 11.30.13
TIO-540-AE2A Parts Catalog

Document Part No. PC-315-7

Parts Catalog | 08.31.13
IO-540-K1K5 Parts Catalog

Document Part No. PC-615-K1K5

Service Bulletins | 08.29.13
Supplement 1 to Service Bulletin No. 342 G

Fuel Line and Support Clamp Inspection and Installation

Service Letters | 08.27.13
Service Letter No. 258

Part Number Supersedure for External Retaining Ring

Parts Catalog | 07.31.13
IO-540-AE1A5 Parts Catalog

Document Part No. PC-615-AE1A5

Service Bulletins | 07.16.13
Service Bulletin No. 342 G

Fuel Line (Stainless Steel Tube Assy.) and Support Clamp Inspection and Installation

Service Letters | 04.15.13
Service Letter No. 254 

Lycoming Model Designation for all Carburetors

Service Bulletins | 03.26.13
Service Bulletin No. 201 F

Inspection of Crankshaft Flange

Service Instructions | 03.19.13
Supplement No. 1 to Service Instruction No. 1454 A 

Rocker Arm Assembly Replacement Parts Supplement 1

Parts Catalog | 12.31.12
O-320-H (76 Series) Parts Catalog

Document Part No. PC-122-H 76 Series

Parts Catalog | 11.30.12
O-235-L2A & -L2C Parts Catalog

Document Part No. PC-302-L2A, -L2C

Parts Catalog | 11.30.12
IO-540-AG1A5 Parts Catalog

Document Part No. PC-615-AG1A5

Service Bulletins | 11.21.12
Service Bulletin No. 604 

Compliance with Hartzell Engine Technologies, LLC Alert Service Bulletin No. 048 dated 11/16/2012, Turbocharger model TAO411, P/N 410188-0019 Turbine Wheel Replacement

Installation & Operator Manuals | 10.31.12
O-540-A4E5 Operator's Manual

Document Part No. 60297-43

Maintenance Manuals | 10.31.12
IO-540-AG1A5 Maintenance Manual

Document Part No. LM-IO-540-AG1A5

Parts Catalog | 10.31.12
O-360-A4M Parts Catalog

Document Part No. PC-306-A4M

Installation & Operator Manuals | 10.31.12
IO-540-AG1A5

Document Part No. 60297-45

Service Bulletins | 10.09.12
Supplement No. 1 to Service Bulletin No. 603

Reprint of Slick Service Bulletin SB1-12 Supplement 1

Service Instructions | 10.04.12
Service Instruction No. 1546

Specific Requirements for Installation and Removal of Electrical Lead on Hartzell Engine Technologies, LLC Starters

Service Bulletins | 10.04.12
Service Bulletin No. 603 

Reprint of Slick Service Bulletin SB1­-12

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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