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Lycoming Engine Parts
As the world's largest distributor of Lycoming parts, Air Power Inc. is your premier source of genuine OEM Lycoming components for the best prices in the industry. Our selection of Lycoming engine parts, including everything from pistons to crankshafts and cylinder kits, offers general aviation aircraft the latest advancements in aviation technology and manufacturing excellence. Get the performance and longevity your Lycoming engine deserves – shop Lycoming aircraft engine parts at Air Power Inc. today.
73998 Lycoming RING
PN: 73998
10 in stock
O-320-A, -E
(low compression)
(Wide Deck)
O-320-B, -D;
IO-320-B1A, -B1C, -B1D, -B1E, -B2A,
-D1A, -D1AD, -D1B, -D1C;
LIO-320-B1A;
AIO-320-A1B, -B1B, -C1B;
AEIO-320-D1B, -D2B
(high compression) (Wide Deck)
O-320-H2AD, -H3AD (76 Series)
O-360-A, -C
(high compression)
(Narrow Deck)
O-360-A, -C, -F1A6, -G1A6;
IO-360-B, -L2A, -M1A, -M1B;
HO-360-C1A;
HIO-360-B1A;
LO-360-A1G6D, -A1H6;
AEIO-360-B, -H1A, -H1B
(high compression) (Wide Deck)
O-360-B, -D
(low compression)
(Narrow Deck)
HO-360-A1A, -B1A, -B1B
HIO-360-B1A
(high compression) (Narrow Deck)
HIO-360-A1A, -A1B, -C1A, -C1B ;
LHIO-360-C1A
(high compression) (Wide Deck)
IO-360-A, -A3B6, -A3B6D, -C, -D1A, -
J1A6D, -K2A;
AIO-360-A1A, -A1B, -B1B;
AEIO-360-A1A, -A1B, -A1B6,-A1D, -
A1E, -A1E6, -A2B;
LIO-360-C1E, -C1E6,-C1E6D
(short reach spark plugs)
(high compression) (Wide Deck)
VO-360-A1A, -A1B, -B1A
(high compression) (Narrow Deck)
GO-480-B, -D, -F
(low compression) (Narrow Deck)
GO-480-C1B6, -C1D6, -C2 Series, -
G1A6, -G1B6, -G1D6, -G2D6, -G1E6, -
G1F6, -G2F6, -G1G6, -G1J6
(high compression) (Narrow Deck)
O-540-A;
IO-540-C
(high compression) (Narrow Deck)
O-540-B
(high compression)
(Narrow Deck)
IO-540-A, -G, -K, -L;
HIO-540-A1A
(high compression) (Narrow Deck)
IO-540-B, -E
(high compression) (Narrow Deck)
IO-540-G, -K, -P, -S
(high compression) (Narrow Deck)
IGO-540-B1A, -B1C
(high compression) (Narrow Deck)
IGO-540-A1A, -A1C
(high compression) (Narrow Deck)
IGSO-540-A1A, -A1C, -A1D, -A1E, -
A1H
(low compression) (Narrow Deck)
IGSO-540-B1A, -B1C
(low compression) (Narrow Deck)
VO-540-A, -B;
TVO-540-A1A
(low compression) (Narrow Deck)
VO-540-C
(high compression) (Narrow Deck)
$32.28
74241 Lycoming RING
PN: 74241
111 in stock
O-320-A, -E
(low compression)
(Wide Deck)
O-320-H2AD, -H3AD (76 Series)
O-320-B, -D;
IO-320-B1A, -B1C, -B1D, -B1E, -B2A,
-D1A, -D1AD, -D1B, -D1C;
LIO-320-B1A;
AIO-320-A1B, -B1B, -C1B;
AEIO-320-D1B, -D2B
(high compression) (Wide Deck)
O-320-B, -D1A, -D2A, -D2B
(high compression)
(Narrow Deck)
O-320-E2A, -E2C;
IO-320-E1A, -D1B, -E2A, -E2B;
AEIO-320-E1A, -E1B, -E2A, -E2B
(low compression) (Wide Deck)
O-320-H2AD, -H3AD (76 Series)
IO-320-B1A; LIO-320-B1A
(high compression) (Narrow Deck)
IO-320-C1A, -C1B, -C1F;
LIO-320-C1A
(high compression) (Wide Deck)
O-340-A
(high compression)
(Narrow Deck)
O-360-A, -C
(high compression)
(Narrow Deck)
O-360-A, -C, -F1A6, -G1A6;
IO-360-B, -L2A, -M1A, -M1B;
HO-360-C1A;
HIO-360-B1A;
LO-360-A1G6D, -A1H6;
AEIO-360-B, -H1A, -H1B
(high compression) (Wide Deck)
IO-360-P1A
LIO-360-B1G6
(high compression) (Wide Deck)
O-360-B, -D
(low compression)
(Narrow Deck)
O-360-B2C
(low compression) (Wide Deck)
O-360-C4P (high compression) (Long
Reach) (Narrow Deck)
O-360-E1A6D (76 Series)
LO-360-E1A6D (76 Series)
O-360-J2A
(high compression) (Wide Deck)
HO-360-A1A, -B1A, -B1B
HIO-360-B1A
(high compression) (Narrow Deck)
HIO-360-A1A
(high compression) (Narrow Deck)
HIO-360-A1A, -A1B, -C1A, -C1B ;
LHIO-360-C1A
(high compression) (Wide Deck)
HIO-360-D1A
(high compression) (Wide Deck)
HIO-360-E1AD, -E1BD, -F1AD
(high compression) (Wide Deck)
IO-360-A1A
(Narrow Deck)
IO-360-A, -A3B6, -A3B6D, -C, -D1A, -
O-320-A, -E
(low compression)
(Wide Deck)
O-320-H2AD, -H3AD (76 Series)
O-320-B, -D;
IO-320-B1A, -B1C, -B1D, -B1E, -B2A,
-D1A, -D1AD, -D1B, -D1C;
LIO-320-B1A;
AIO-320-A1B, -B1B, -C1B;
AEIO-320-D1B, -D2B
(high compression) (Wide Deck)
O-320-B, -D1A, -D2A, -D2B
(high compression)
(Narrow Deck)
O-320-E2A, -E2C;
IO-320-E1A, -D1B, -E2A, -E2B;
AEIO-320-E1A, -E1B, -E2A, -E2B
(low compression) (Wide Deck)
O-320-H2AD, -H3AD (76 Series)
IO-320-B1A; LIO-320-B1A
(high compression) (Narrow Deck)
IO-320-C1A, -C1B, -C1F;
LIO-320-C1A
(high compression) (Wide Deck)
O-340-A
(high compression)
(Narrow Deck)
O-360-A, -C
(high compression)
(Narrow Deck)
O-360-A, -C, -F1A6, -G1A6;
IO-360-B, -L2A, -M1A, -M1B;
HO-360-C1A;
HIO-360-B1A;
LO-360-A1G6D, -A1H6;
AEIO-360-B, -H1A, -H1B
(high compression) (Wide Deck)
IO-360-P1A
LIO-360-B1G6
(high compression) (Wide Deck)
O-360-B, -D
(low compression)
(Narrow Deck)
O-360-B2C
(low compression) (Wide Deck)
O-360-C4P (high compression) (Long
Reach) (Narrow Deck)
O-360-E1A6D (76 Series)
LO-360-E1A6D (76 Series)
O-360-J2A
(high compression) (Wide Deck)
HO-360-A1A, -B1A, -B1B
HIO-360-B1A
(high compression) (Narrow Deck)
HIO-360-A1A
(high compression) (Narrow Deck)
HIO-360-A1A, -A1B, -C1A, -C1B ;
LHIO-360-C1A
(high compression) (Wide Deck)
HIO-360-D1A
(high compression) (Wide Deck)
HIO-360-E1AD, -E1BD, -F1AD
(high compression) (Wide Deck)
IO-360-A1A
(Narrow Deck)
IO-360-A, -A3B6, -A3B6D, -C, -D1A, -
J1A6D, -K2A;
AIO-360-A1A, -A1B, -B1B;
AEIO-360-A1A, -A1B, -A1B6,-A1D, -
A1E, -A1E6, -A2B;
LIO-360-C1E, -C1E6,-C1E6D
(short reach spark plugs)
(high compression) (Wide Deck)
IO-360-A3B6D (long reach spark plugs)
(for turbocharging) (Wide Deck)
IO-360-C1F (short reach spark plugs)
(non-turbocharging) (Wide Deck)
IO-360-C1F (long reach spark plugs)
(for turbocharging) (Wide Deck)
IO-360-B1A, -B1B
(high compression) (Narrow Deck)
IO-360-F1A
(high compression) (Wide Deck)
(Long Reach)
IVO-360-A1A
(high compression) (Wide Deck)
IVO-360-A1A
(high compression) (Narrow Deck)
TO-360-C1A6D, -F1A6D;
TIO-360-C1A6D
(low compression) (Wide Deck)
TO-360-E1A6D;
LTO-360-E1A6D (76 Series)
TIO-360-A1B, -A3B6
(low compression) (Wide Deck)
VO-360-A1A, -A1B, -B1A
(high compression) (Narrow Deck)
GO-480-B, -D, -F
(low compression) (Narrow Deck)
GO-480-C1B6, -C1D6, -C2 Series, -
G1A6, -G1B6, -G1D6, -G2D6, -G1E6, -
G1F6, -G2F6, -G1G6, -G1J6
(high compression) (Narrow Deck)
GO-480-G1A6 (Helio)
IGO-480-A1B6 (Helio); (high
compression) (Narrow Deck)
GO-480-G1D6 (Helio)
(high compression) (Narrow Deck)
GSO-480-A, -B;
IGSO-480-A
(low compression) (Narrow Deck)
O-540-A, -F
(high compression)
(Narrow Deck)
O-540-A4D5, A4E5, -E, -G, -H;
IO-540-A4D5, - C, -D, -N, -T, -V;
AEIO-540-D4A5, -D4B5, -D4D5
(high compression) (Wide Deck)
O-540-B
(low compression) (Wide Deck)
O-540-B
(high compression)
(Narrow Deck)
O-540-E1A, -E4B5, -E4C5, -G1A5,
-G2A5;
IO-540-C, -D4A5, -D4B5, -N1A5
(high compression) (Narrow Deck)
O-540-E4A5
(high compression) (Long Reach)
(Narrow Deck)
O-540-F1B5
(high compression) (Wide Deck)
O-540-J1A5D, -J1C5D, -J2A5D, -J3A5, -
J3A5D,
-J3C5D;
IO-540-AB1A5, -W1A5, -W1A5D, -
W3A5D
(high compression) (Wide Deck)
O-540-L3C5D
(high compression) (Wide Deck)
IO-540-A, -G, -K, -L;
HIO-540-A1A
(high compression) (Narrow Deck)
IO-540-AA1A5, -AA1B5;
TIO-540-U2A;
LTIO-540-U2A
(low compression) (Wide Deck)
IO-540-AC1A5
(high compression) (Wide Deck)
IO-540-AF1A5
(high compression) (Wide Deck)
IO-540-AG1A5
(low compression) (Narrow Deck)
IO-540-B, -E
(high compression) (Narrow Deck)
IO-540-E1B5
IO-540-M1A5;
(for turbocharging)
(high compression) (Narrow Deck)
IO-540-G, -K, -P, -S
(high compression) (Narrow Deck)
IO-540-G1D5, -K1B5, -K1C5, -K1E5, -
K1E5D,
-S1A5;
AEIO-540-L1B5, -L1B5D, -L1D5
(high compression) (Wide Deck)
IO-540-J4A5, -R1A5;
TIO-540-G1A
(high compression) (Narrow Deck)
IO-540-J4A5, -R1A5
(high compression) (Wide Deck)
(Long Reach)
IO-540-K1A5, -K1A5D, -K1B5, -K1D5,
-K1F5,-K1F5D, -K1G5, -K1G5D,
-K1H5, -K1J5, -K1J5D, -K1K5,
-K2A5, -L1A5D, -L1B5D, -L1C5,
-AE1A5;
AEIO-540-L1B5, -L1B5D, -L1D5
(high compression) (Wide Deck)
IO-540-M1A5, -M1A5D, -M1B5, -
M1B5D,
-M1C5, -U1A5D, -U1B5D
(high compression) (Wide Deck)
IGO-540-B1A, -B1C
(high compression) (Narrow Deck)
IGO-540-A1A, -A1C
(high compression) (Narrow Deck)
IVO-540-A1A
(high compression) (Narrow Deck)
IGSO-540-A1A, -A1C, -A1D, -A1E, -
A1H
(low compression) (Narrow Deck)
IGSO-540-B1A, -B1C
(low compression) (Narrow Deck)
TEO-540-A1A, -C1A
(Wide Deck)
TIO-540-A1A, -A1B, -A2A, -A2B, -
A2C
(low compression) (Narrow Deck)
TIO-540-AF1B (Oil Cooled Valve
Guides)
(low compression) (Wide Deck)
TIO-540-AJ1A
(low compression) (Wide Deck)
TIO-540-AK1A
(low compression) (Wide Deck)
TIO-540-C1A, -C1AD
(low compression) (Wide Deck)
TIO-540-C1A, -E1A, -H1A
(low compression) (Narrow Deck)
TIO-540-K1AD, -AA1AD, -AB1AD, -
AB1BD,
-AF1A, -AG1A
(low compression) (Wide Deck)
TIO-540-V2AD;
LTIO-540-V2AD
(low compression) (Wide Deck)
TIO-540-W2A
(low compression) (Wide Deck)
TIVO-540-A2A, -A2B
(low compression) (Narrow Deck)
VO-540-A, -B;
TVO-540-A1A
(low compression) (Narrow Deck)
VO-540-C
(high compression) (Narrow Deck)
TIO-541-A1A
(low compression) (Narrow Deck)
TIO-541-E1A4, -E1B4, -E1C4, -E1D4;
TIGO-541-E1A
(low compression) (Narrow Deck)
TIGO-541-D1B
(low compression) (Narrow Deck)
IO-720-A1A. -D1B
(high compression) (Narrow Deck)
IO-720-A1B
(high compression) (Narrow Deck)
IO-720-A1B, -D1B, -D1C, -D1CD
(high compression) (Wide Deck)
IO-720-B1B, -C1B
(high compression) (Narrow Deck)
IO-720-B1B, -B1BD
(high compression) (Wide Deck)
$46.40