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Crankshaft Seals for Lycoming Engines

A.E.R.O. stocks most gaskets for Lycoming engines. Gaskets listed on this website are common general maintenance required gaskets. Our gasket vendors include CMI, Lycoming, and Superior Airparts. Gaskets and sets not listed are available and in-stock. Call 800.362.3044 for a complete listing with application.

Engine
Eligibility
Part
Number
O-235 PH, O-290 PH, O-320 PH, O-320-H, O-360 PH, O-360-E, IO-360-A,H; O-540 PH SL13792
O-235 PH, O-290 PH, O-320 PH, O-320-H, O-360 PH, O-360-E, IO-360-A,H; O-540 PH LW-11997
O-540 Small Main SL13792
O-540 Small Main LW-11997
O-540 Large Main LW-15628
O-540 Large Main 74305
TIO/TIGO-541-E 78443
IO-720-A,D 78443
PH = Parallel Head Series