State of the ArtAircraft Engine Repairs

Lycoming Aircraft Engine Cylinders

Repair & overhaul capabilities for all of your cylinder needs

Our aircraft engine cylinder shop offers our customers repair and overhaul capabilities for their cylinder needs. Our state-of-the-art honing and boring machine precision grinds the aircraft cylinder barrel to exacting standards and trueness while automatically holding the required tapered choke for the cylinder. Seats are precision ground and valves are lapped into place. Pneumatic and liquid testing is accomplished for assurance of optimum seating. Special attention is given to proper spring tensions and heights to maximize the performance of the cylinder. The piston rings are sized to fit the barrel and installed providing the customer a trouble-free installation.

If you are not overhauling the engine, a repaired cylinder is a very cost effective solution. At overhaul we have to change certain parts, regardless of time or condition. We can fully repair your cylinders and will change any item that does not meet the overhaul service limits specification criteria. We will perform Non-Destructive Testing for cracks, cut valves and seats and lap, install and leak check the valves. New rings will be fitted to the piston and installed in the newly honed barrel. The cylinder will be painted and a new gasket set will be provided. Each cylinder will include the valves installed, piston & piston rings installed and a new gasket set.

Repaired Lycoming Aircraft Cylinders

Engine ModelClassOEM P/NPMA P/N
O-235-C1, CIA, C1B, C1C, C2A, C2B, C2C, E1, E1B, E2A, H2C105K23039
O-235-E2B, F1, F1B, F2A, F2B, G1, GIA, G1B, G2A, G2B, J2A, J2B1.105K23040SL10302-A20P
O-235-K2A, K2B, K2C, L2A, L2C, M1, M2, M2C, M3C1.205K23037SL10302-A21P
O-235-N2A, N2C, P1, P2A, P2C, P3C1.305K23038
O-290-11, D271831
O-290-D2, D2A371837
O-290-D2B, D2C3.1
AEIO-320-E1A, E1B, E2B (W/D, S/R, P/V)405K21237-ASL32006W-A21P, TIST04.0CA
AEIO-320-D1B, D2B (W/D, S/R)4.105K21100SL32006W-A20P TIST04.1CA
AIO-320-A1A, A1B, A2A, A2B, B1B, CIB (W/D, S/R, P/V)4.105K21100SL32006W-A20P TIST04.1CA
IO-320-A1A, A2A, E1A, E1B, E2A, E2B (W/D, S/R, P/V)405K21237-ASL32006W-A21P TIST04.0CA
IO-320-B1A, B1B, B1C, B1D, B1E, B2A, C1B, D1A, D1AD, D1B, D1C (W/D, S/R, P/V)4.105K21100SL32006W-A20P TIST04.1CA
IO-320-C1A, C1B, C1F, F1A (W/D, P/V)505K21242TIST05.0CA
IO-320-A1A, A2A (N/D, P/V)605K21423-ASL32006N-A20P TIST06.0CA
IO-320-B1A, B1B (N/D, P/V)705K21101TIST07.0CA
LIO-320-B1A (W/D, P/V)4.105K21100SL32006W-A20P TIST04.1CA
LIO-320-C1A (W/D, P/V)505K21242TIST05.0CA
LIO-320-B1A (N/D, P/V)705K21101TIST07.0CA
O-320-A1B, A2B, A2C, A2D, A3A, A3B, C2B, C2C, C3B, C3C, E1A, E1B, E1C, E1F, E1J, E2A, E2B, E2C, E2D, E2E, E2F, E2G, E2H, E3D, E3H (W/D, P/V)405K21237-ASL32006W-A21P TIST04.0CA
O-320-B2B, B2C, B2D, B2E, B3B, B3C, D1A, D1B, D1C, D1D, D1F, D2A, D2B, D2C, D2F, D2G, D2H, D2J, D3G (W/D, P/V)4.105K21100SL32006W-A20P TIST04.1CA
O-320-(no suffix), A1A, A2A, A2B, A2C, A3A, A3B, A3C, E1A, E1B, E2A, E2C (N/D, P/V)605K21423-ATIST06.0CA
O-320-B1A, B1B, B2A, B2B, B3A, B3B, B3C, D1A, D1B, D2A, D2B, D2C (N/D, P/V)805K21101TIST08.0CA
O-320-C1A, C1B, C2A, C2B, C3A, C3B, C3C (N/D, P/V)8.0A
O-320-H1AD, H1BD, H2AD, H2BD, H3AD, H3BD (76 Series)4105K21119
O-340-A1A, A1B, A2A (N/D)9.0A
O-340-B1A, B2A (N/D)9.0B
AEIO-360-B1B (N/D)10.105K21102SL36006N-A20P TIST10.1CA
AEIO-360-B1B, B1D, B1F, B1F6, B1G6, B1H, B2F, B2F6, B4A, H1A, H1B (W/D)1205K21104SL36006W-A20P TIST12.0CA
AEIO-360-A1A, A1B, A1B6, A1B6D, A1C, A1D, A1D6, A1E, A1E6, A2A, A2B, A2C, A3B6D1305K21120
AIO-360-A1A, A1B, A2A, A2B, B1B1305K21120
HIO-360-B1A, B1B10.105K21102SL36006N-A20P TIST10.1CA
HIO-360-B1A, B1B, G1A1205K21104SL36006W-A20P TIST12.0CA
HIO-360-A1A, A1B, C1A, C1B13.205K21281
HIO-360-E1AD, E1BD, FIAD (LW13358 piston)14.205K21275
HIO-360-E1AD, E1BD, FIAD (LW14610 piston)14.305K21274
HO-360-A1A, B1A, B1B10.105K21102SL36006N-A20P TIST10.1CA
HO-360-C1A1205K21104SL36006W-A20P TIST12.0CA
IO-360-B1A, B1B, B1C10.105K21102SL36006N-A20P TIST10.1CA
IO-360-B1B, B1BD, B1D, B1E, B1F, B1F6, B1G6, B2E, B2F, B2F6, B4A, E1A, L2A, M1A, M1B1205K21104SL36006W-A20P TIST12.0CA
IO-360-A1A, A1B, A1B6, A1B6D, A1C, A1C6, A1D, A1D6, A1D6D, A2A, A2B, A2C, A3B6, A3B6D, A3D6D, C1A, C1B, C1C, C1C6, C2D6, C1E6, C1E6D, C1G6, D1A, J1AD, J1A6D, K2A1305K21120
LHIO-360-C1A, C1B13.205K21281
LHIO-360-F1AD (LW13358 piston)14.205K21275
LHIO-360-F1AD (LW14610 piston)14.305K21274
LIO-360-C1E, C1E6, C1E6D1305K21120
LO-360-A1G6D, A1H61205K21104TIST12.0CA
O-360-B1A, B1B, B2A, B2B, D1A, D2A, D2B1005K21103SL36006N-A21P TIST10.0CA
O-360-A1A, A1C, A1D, A2A, A2E, A3A, A3D, A4A, C1A, C1C, C1G, C2A, C2B, C2C, C2D10.105K21102SL36006N-A20P TIST10.1CA
O-360-A1A, A1AD, A1D, A1F, A1F6, A1F6D, A1G, A1G6, A1G6D, A1H, A1H6, A1J, A1LD, A1P, A2A, A2D, A2F, A2G, A3A, A3AD, A3D, A3H, A4A, A4AD, A4D, A4G, A4J, A4JD, A4K, A4M, A4N, A4P, A5AD, C1A, C1C, C1E, C1F, C1G, C2A, C2B, C2C, C2D, C2E, C4F, C4P, F1A6, G1A61205K21104SL36006W-A20P TIST12.0CA
O-360-B1A, B2C, D2A12.205K21192TIST12.2CA
TIO-360-A1A, A1B, A3B614.405K21277
TO-360-C1A6D, F1A6D4605K21276
GO-435-11, C1B1, C2, C2A, C2A2, C2B, C2B1, C2B2, C2B26, C2E1705K21229
GSO-435-B, B21705K21229
0-435-4, 6, 6A, 21, 23, 23A, 23B, 23C, 251805K21214
TVO-435-A1A, B1A, B1B, C1A, D1A, D1B, E1A, F1A, G1A, G1B1905K21212
VO-435-A1A, A1B, A1C, A1D, A1E, A1F1805K21214
VO-435-A1D, A1E, A1F1905K21212
GO-480-B, B1, B1A6, B1B, B1C, B1D, D1A, D1B, F6, F1A6, F2A6, F2D6, F3A6, F3B6, F4A6, F4B62105K21273
GO-480-C1B6, C1D6, C2C6, C2D6, C2E6, G1A6, G1B6, G1D6, G1E6, G1F6, G1G6, G1J6, G2D6, G2F622
GSO-480-A1A, A1A6, A1B6, A2A6, B1A6, B1B3, B1B6, B1C6, B1E6, B1F6, B1G6, B1J6, B2C6, B2D6, B2G6, B2H6,22.105K21273
GO-480-C1B6, C1D6, C2C6, C2D6, C2E6, G1A6, G1B6, G1D6, G1E6, G1F6, G1G6, G1J6, G2D6, G2F62305K21272
GSO-480-A1A, A1A6, A1B6, A2A6, B1A6, B1B3, B1B6, B1C6, B1E6, B1F6, B1G6, B1J6, B2C6, B2D6, B2G6, B2H6,23.105K21270
IGSO-480-A1A6, A1B6, A1C6, A1D6, A1E6, A1F3, A1F6, A1G622.105K21273
IGSO-480-A1A6, A1B62305K21272
IGSO-480-A1A6, A1B6, A1C6, A1D6, A1E6, A1F3, A1F6, A1G623.105K21270
0-480-1, 1A, 322.105K21273
0-480-1, 1A, 323.105K21270
AEIO-540-D4A5, D4B5, D4C5, D4D5,1205K21104SL36006W-A20P TIST12.0CA
AEIO-540-L1B5, L1B5D, L1D5 (W/D, S/R)1305K21120
HIO-540-A1A (N/D)1105K21112
IGO-540-A1A, A1B, A1C (S/R)30
IGO-540-A1A, A1B, A1C (L/R)31.105K21265
IGO-540-B1A (S/R)32
IGO-540-B1A, B1B, B1C (L/R)33.105K21267
IGSO-540-A1A, A1C, A1D, A1E, A1F, A1H3105K21264
IGSO-540-B1A, B1C (S/R)32.1
IGSO-540-B1A, B1C (L/R)3305K21269
IO-540-C1B5, C1C5, C2C, C4B5, C4B5D, C4C5, D4A5, D4B5, N1A5, N1A5D (N/D)10.105K21102SL36006N-A20P TIST10.1CA
IO-540-A1A5, G1A5, G1B5, G1C5, G1D5, G1E5, G1F5, K1A5, K1B5, K1B5D, K1D5, K1F5, K2A5, L1A5 (N/D)1105K21112
IO-540-C4B5, C4B5D, C4D5, C4D5D, D4A5, D4C5, N1A5, N1A5D, T4A5D, T4B5, T4B5D, T4C5D, V4A5, V4A5D (W/D)1205K21104SL36006W-A20P TIST12.0CA
IO-540-AE1A5, K1A5, K1A5D, K1B5, K1B5D, K1D5, K1F5, K1F5D, K1G5, K1G5D, K1H5, K1J5, K1J5D, K1K5, K2A5, L1A5D, L1B5D, L1C5 (W/D)1305K21120
IO-540-G1D5, K1B5, K1B5D, K1C5, K1E5, K1E5D, S1A5 (W/D, L/R)1405K21118
IO-540-AA1A5, AA1B514.3A05K21966
IO-540-B1A5, B1B5, B1C5, E1A5, E1B5, E1C52405K21226
IO-540-G1A5, G1B5, G1C5, G1D5, G1E5, G1F5, K1B5, K1B5D, K1C5, K1E5, K1E5D, P1A5, S1A5 (N/D)2505K21204
IO-540-J4A5, R1A5 (N/D)2605K21241TIST26.0CA
IO-540-M1A5, M1C527.105K21226
IO-540-M1A5, M1A5D, M1B5, M1B5D, M1C5, M2A5D, U1A5D, U1B5B40.105K21263
IO-540-AB1A5, W1A5, W1A5D, W3A5D (TW/D)4305K21117SL36006TW-A21P TIST43.0CA
LTIO-540-U2A (W/D, L/R)14.3A05K21966
LTIO-540-K1AD (W/D)38.105K22129
LTIO-540-F2BD, J2B, J2BD, N2BD, R2AD4005K21108
LTIO-540-V2AD, W2A4705K21260
O-540-B1A5, B1B5, B1D5, B2A5, B2B5, B2C5, B2C5D, B4A5, B4B5, B4B5D (N/D)1005K21103SL36006N-A21P TIST10.0CA
O-540-A1A, A1A5, A1B5, A1C5, A1D, A1D5, A2B, A3D5, A4A5, A4B5, A4C5, A4D5, D1A5, E1A, E4A5, E4B5, E4C5, F1A5, F1B5, G1A5, G2A5 (N/D)10.105K21102SL36006N-A20P TIST10.1CA
O-540-A4D5, E4A5, E4B5, E4B5D, E4C5, G1A5, G1A5D, G2A5, H1A5, H1A5D, H1B5D, H2A5, H2A5D, H1B5, H2B5D (W/D)1205K21104SL36006W-A20P TIST12.0CA
O-540-B2B5, B2C5, B2C5D, B4B5, B4B5D (W/D)12.205K21192TIST12.2CA
O-540-9, 9A (S/R)35.177493
O-540-9, 9A (L/R)36.105K21223
O-540-J1A5D, J1B5D, J1C5D, J1D5D, J2A5D, J2B5D, J2C5D, J2D5D, J3A5, J3A5D, J3C5D (TWD)4305K21117SL36006TW-A20P TIST43.0CA
O-540-F1B5 (TWD)43.105K21745SL36006TW-A21P TIST43.1CA
TIO-540-AE2A, AH1A, U2A (W/D, L/R)14.3A05K21262
TIO-540-G1A (N/D, L/R)2605K21241TIST26.0CA
TIO-540-C1A, E1A, H1A (N/D, L/R)26.105K21234TIST26.1CA
TIO-540-A1A, A1B, A1C, A2A, A2B, A2C2705K21109
TIO-540-C1A, C1AD (W/D, L/R)3805K22128TIST38.0CA
TIO-540-AA1AD, AB1BD, AF1A, AG1A, AK1A, K1AD (W/D, L/R)38.105K22129TIST38.1CA
TIO-540-A2C, F2BD, J2B, J2BD, N2BD, R2AD, S1AD, T2AD (W/D, L/R, UPSTACK)4005K21108
TIO-540-AJ1A, V2AD, W2A (XX, XX)4705K21260
TIVO-540-A2A, A2B3605K21228
TVO-540-A1A (S/R)3577487
TVO-540-A1A (L/R)3605K21228
VO-540-A1A, A2A, B1A, B1B, B1B3, B1C, B1D, B1E, B1F, B1G, B1H3, B2A, B2C, B2D, B2E, B2G (S/R)3577487
VO-540-C1A, C1B, C1C3, C2A, C2B, C2C (S/R)35.177493
VO-540-A1A, A2A, B1A, B1B, B1B3, B1C, B1D, B1E, B1F, B1G, B1H3, B2A, B2C, B2D, B2E, B2G (L/R)3605K21228
VO-540-C1A, C1B, C1C3, C2A, C2B, C2C (L/R)36.105K21223
TIGO-541-D1A, E1A, G1AD2905K21259
TIO-541-E1A4, E1B4, E1C4, E1D42905K21259
IO-720-A1A, A1B, A1BD, DIB, DIBD (N/D)1105K21112
IO-720-A1B, A1BD, D1B, D1BD, D1C, D1CD (W/D)1405K21118
IO-720-B1B, C1B, C1BD (N/D, S/R)2405K21226
IO-720-A1B, A1BD (N/D)25.105K21112
IO-720-B1B, C1B, C1BD (N/D, L/R)27.205K21226
IO-720-B1B, B1BD (W/D, L/R)40.105K21263

State of the art aircraft piston engine repair and overhaul facility

Airmark Overhaul, Inc. has served the aviation industry since 1975. We provide quality work to Lycoming and Continental Motors aircraft engines and their associated cylinders and accessories. We are an FAA Approved Repair Facility and also an EASA Approved Facility.

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