|Factory New Lycoming OEM Parts|
WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov
Please note, Pilotshop's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Pilotshop assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Seats, valve guides, inserts- for spark plug, studs and rocker bushings
We don't have technical drawings for the physical differences, but we can say that the LW-12416 is used on some O-320 series engines, and LW-12425 is used on some O-540 series engines.
They should be the same. LW-12416 was superseded to 16a30080-02 in 2019.