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APS Silicone Rocker Gaskets for
Lycoming Engines

APS FAA/PMA-approved silicone rocker gaskets are primarily used for parts required to operate or seal. They are reusable and remain flexible from -85 to +401°F. They are resistant to leaking, to deterioration by weathering, and to petroleum-base lubricating oil.

Lycoming
Engine Eligibility
Cross Ref
Part Number
Part
Number
O-235, O-290, O-320, O-340 Series 75906 APS-75906-S
IO-360-A1A,A1B,A1B6,A1B6D,A1C,A1C6,A1D,A1D6,A2A,A2B,A2C,A2D6D,A3B6,A3B6D,A3D6D,C1A,C1B,C1C,C1C6,C1D6,C1E6,C1E6D,C1G6,D1A,J1A6D,K2A; AEIO-360-A1A,A1B,A1B6,A1D,A1E,A1E6,A2B; AIO-360-A1A,A1B,B1B; IO-360-F1A, LIO-360-C1E,C1E6,C1E6D; TO-360-C1A6D 67193 APS-67193-S
IO-360-B1B,B1BD,B1D,B1E,B1F,B1G6,B2E,B2F,B2F6,B4A,L2A,M1A,M1B; O-360-A1A,A1AD,A1C,A1D,A1F,A1F6,A1F6D,A1G,A1G6,A1G6D,A1H,A1H6,A1J,A1LD,A1P,A2A,A2D,A2E,A2F,A2G,A3A,A3AD,A4A,A4AD,A4D,A4G,A4J,A4JD,A4K,A4M,A4N,A4P,A5AD,B2A,C1A,C1C,C1E,C1F,C1G,C2A,C2C,C2D,C2E,C4F,C4P,D2A,D2B,F1A6,GIA6; AEIO-360-BAF,B1B,B1G6,B1H,B2F,B4A,H1A,H1B; HIO-360-B1A,G1A; HO-360-C1A, LO-360-A1G6D,A1H6,E1A6D 75906 APS-75906-S
IO-360-F1A, TO-360-C1A6D 76036 APS-76036-S
GO-435-C2, TVO-435-A1A,B1A,B1B,D1A,D1B,F1A,G1A,G1B; VO-435-A1A,A1C,A1D,A1E,A1F,BIA 67193 APS-67193-S
IO-540-AA1A5,AA1B5,AE1A5,J4A5,K1A5,K1A5D,K1B5,K1D5,K1F5,K1F5D,K1G5,K1G5D,K1H5,K1J5,K1J5D,K1K5,L1A5D,L1C5; AEIO-540-L1B5,L1B5D,L1D5; HIO-540-A1A; IGSO-540-A1A,A1C,A1D,A1E,A1H; IVO-540-A1A, LTIO-540-U2A,V2AD; TIO-540-AE2A,AH1A,U2A,V2AD; TIVO-540-A2A,A2B; TVO-540-A1A; VO-540-A1A,B1A,B1B,B1B3,B1C,B1D,B1F,B1G,B2D,C1A,C1B,C1C3,C2A,C2C 67193 APS-67193-S
IO-540-B1A5,B1C5,EIA5,E1B5,M1A5D,M1B5,M1B5D,UIA5D,U1B5D; IGO-540-B1A,B1C; IGSO-540-B1A,B1C; LTIO-540-F2BD,J2B,J2BD,N2BD,R2AD; TIO-540-A1A,A1B,A2B,A2C,F2BD,J2B,J2BD,N2BD,R2AD,S1AD 71450 APS-71450-S
IO-540-J4A5, LTIO/TIO-540-V2AD 76036 APS-76036-S
O-540-A4D5,B1A5,B1B5,B2A5,B2B5,B2C5,B2B5,E4A5,E4B5,E4B5D,E4C5,F1B5,G1A5,G1A5D,G2A5,H1B5D,H2B5D,J1A5D,J1C5D,J2A,J2A5D,J3A5,J3A5D,J3C5D,L3C5D; IO-540-C4B5,C4B5D,C4D5D,D4A5,D4B5,D4C5,E4C5D,N1A5,N1A5D,T4B5D,V4A5D,V4A5; AEIO-540-AB1A5,D4A5,D4B5,D4D5,W1A5,W1A5D,W3A5D; TIO-540-AA1AD,AB1AD,AB1BD,AF1A,AF1B,AG1A,C1A,E1A,H1A,K1AD 75906 APS-75906-S
TIO-541-E1A4–C4,EAD4; TIGO-541-E1A 76036 APS-76036-S
TIO-541-E1A4,E1B4,E1C4,EAD4; TIGO-541-E1A 67193 APS-67193-S
IO-720-A1A,A1B,D1B,D1C,D1CD 67193 APS-67193-S
IO-720-B1B,B1BD,C1B 71450 APS-71450-S