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CMI Cylinder Assemblies for
Lycoming Engines

A.E.R.O. now offers CMI cylinders for Lycoming engines with either a nickel & carbide bore coating barrel or a through-hardened forged steel barrel. Additional features are a plateau bore finish, moly-filled top compression ring, and a tru-bore valve guide. Cylinders with TIST prefix are for standard steel barrel cylinders, those with the TISN prefix are for the Nickel & Carbide electro-plated barrel cylinders.

Lycoming
Engine Eligibility
Nickel Barrel Part Number Steel Barrel Part Number Description
O-320-A1B,A2B,A2C,A2D,A3A,A3B,C2B,C2C,C3B,C3C,E1A,E1B,E1C,E1F,E1J,E2A,E2B,E2C; IO-320-A1A,A2A,E1A,E1B,E2A,E2B; AEIO-320-E1A,E1B,E2A,E2B TISN04.0CA TIST04.0CA Wide Deck
O-320-B2B,B2C,B2D,B2E,B3B,B3C,D1A,D1B,D1C,D1D,D1F,D2A,D2B,D2C,D2F,D2G,D2H,D2J,D3G; IO-320-B1A,B1B,B1C,B1D,B1E,B2A,C1B,D1A,D1AD,D1B,D1C; AIO-320-A1A,A1B,A2A,A2B, B1B,C1B; LIO-320-B1A; AEIO-320-D1B,D2B TISN04.1CA TIST04.1CA Wide Deck
IO-320-C1A,C1B,C1F,F1A; LTIO-320-C1A TISN05.0CA TIST05.0CA Wide Deck
O-320, O-320-A1A,A2A,A2B,A2C,A3A,A3B,A3C,E1A,E1B,E2A,E2C; IO-320-A1A,A2A TISN06.0CA TIST06.0CA Narrow Deck, Spot-Faced
O-320-B1A,B1B,B2A,B2B,B3A,B3B,B3C,D1A,D1B,D2A,D2B,D2C TISN08.0CA TIST08.0CA Narrow Deck
O-360-B1A,B1B,B2A,B2B,D1A,D2A,D2B; O-540-B1A5,B1B5,B1D5,B2A5,B2B5,B2C5,B2C5D,B4A5,B4B5,B4B5D TISN10.0CA TIST10.0CA Narrow Deck
O-360-A1A,A1C,A1D,A2A,A2E,A3A,A3D,A4A,C1A,C1C,C1G,C2A,C2B,C2C,C2D; HO-360-A1A,B1A,B1B; IO-360-B1A,B1B,B1C; HIO-360-B1A,B1B; AEIO-360-B1B; O-540-A1A,A1A5,A1B5,A1C5,A1D,A1D5,A2B,A3D5,A4A5,A4B5, A4C5,A4D5,D1A5,E1A,E4A5,E4B5,E4C5,F1A5,F1B5,G1A5,G2A5; IO-540-C1B5,C1C5,C2C,C4B5,C4B5D,C4C5, D4A5,D4B5,N1A5,N1A5D TISN10.1CA TIST10.1CA Narrow Deck
O-360-A1A,A1AD,A1D,A1F,A1F6,A1F6D,A1G,A1G6,A1G6D,A1H,A1H6,A1J,A1LD,A1P,A2A,A2D,A2F,A2G,A2H,A3A, A3AD,A3D,A4A,A4AD,A4D,A4G,A4J,A4JD,A4K,A4M,A4N,A4P,A5AD,C1A,C1C,C1E,C1F,C1G,C2A,C2B,C2C,C2D,C2E,C4F,C4P,F1A6,G1A6; HO-360-C1A; IO-360-B1B,B1BD,B1D,B1E,B1F,B1F6,B1G6,B2E,B2F,B2F6,B4A,E1A,L2A, M1A,M1B; LO-360-A1G6D,A1H6; HIO-360-B1A,B1B,G1A; AEIO-360-B1B,B1D,B1F,B1F6,B1G6,B1H,B2F,B2F6,B4A, H1A,H1B; O-540-A4D5,E4A5,E4B5,E4B5D,E4C5,G1A5,G1A5D,G2A5,H1A5,H1A5D,H1B5D,H2A5,H2A5D,H1B5, H2B5D; IO-540-C4B5,C4B5D,C4D5,C4D5D,D4A5,D4B5,D4C5,N1A5,N1A5D,T4A5D,T4B5,T4B5D,T4C5D,V4A5, V4A5D; AEIO-540-D4A5,D4B5,D4C5,D4D5 TISN12.0CA TIST12.0CA Wide Deck