SA03328CH: Lycoming O-320/O-360 Engine Installation


This STC installs either a Lycoming O-320 or O-360 into the PA-12/14 aircraft. We certified this STC in conjunction with Rubbert Aircraft Services. We used their cowling, engine mount, and engine baffling. Please contact Rubbert Aircraft Services at 701-847-3008 for current pricing on all of their parts and STC's.


Both conical and dynafocal engine options are approved. Below is a list of the approved engine options:

  • Conical:
    • O-320: A1A, A1B, A2A, A2B, A2C, B1A, B1B, B2A, B2B, B2C, C1A, C1B, C2A, C2B, C2C
    • O-360: C1A, C1C, C1E, C1G, C2A, C2C, C2E, C4P
  • Dynafocal:
    • 0-320: D1A, D1C, D1F, D2A, D2B, D2C, D3G, E1A, E1C, E1F, E1J, E2F, E3D, E3H
    • O-360: A1A, A1D, A1P, A2A, A2D, A2E, A4D, A4N, A4P

Any other O-320/O-360 series engine that is converted to one of the above models in accordance with Lycoming instructions is able to be used with this STC.


Applicable models are all Piper PA-12 and PA-14 aircraft.



**We have worked with Rubbert Aircracft Services for a many years. Randy Rubbert, owner of Rubbert Aircraft Services, has been making parts for over 30 years. His parts have long been known as excellent quality and a favorite in the Piper community. We are happy to work with Randy and offer this modification for all model PA-12/14 aircraft.