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Superior Air Parts Eligibilities


Part Description: PISTON RING - 5.125 (COMPRESSION)
Part Category: RING
FAA Website Eligibilities: [FAA Link]
Superior PMA Number: [94_R1]
OEM Part Number: 74989
See SETS with this Part Number
Note: Superior PMA replacement Piston Ring gap information - Click Here


SL74989 has eligibilities only on the following engines.

Engine Model (4)
Engine Configurations
O-320 -A1A, -A1B, -A2A, -A2B, -A2C, -A2D, -A3A, -A3B, -A3C, -B1A, -B1B, -B2B, -B3B, -B3C, -D1A, -D2A, -D2B, -E1A, -E1F, -E1J, -E2A, -E2B, -E2C, -E2D, -E2F, -E2G, -E3D, -E3H
O-340 -A1A, -A2A, -B1A
O-360 -A1A, -A1C, -A1D, -A2A, -A2E, -A3A, -B2A, -C1A, -C1C, -C2A, -C2C, -C2D, -D2A, -D2B
O-540 -A1A, -A1A5, -A1B5, -A1C5, -A1D, -A1D5, -A2B, -A3D5, -A4A5, -A4B5, -A4D5, -B1A5, -B1B5, -B2B5, -B2C5, -B4B5, -F1A5, -F1B5