Set of Four New Aftermarket Replacement Piston Ring Sets Fits Caterpillar (Fits CAT) 3304 and 3306 Engines

This listing includes four individual piston ring sets (12 rings total) for the Fits Caterpillar 3304 and 3306 diesel engines. Each set includes a 1st compression ring (9S3029), 2nd compression ring (5S6750), and oil control ring (9S7788), providing a complete cylinder rebuild solution for standard bore applications. These rings seal the combustion chamber, manage oil control, and maintain compression integrity in the Fits CAT 3300-series inline engine family used across a wide range of Fits Caterpillar construction, industrial, and agricultural equipment.

Specifications

• Quantity: Set of 4 piston ring sets (12 rings total)
• Bore Size: Standard (STD)
• Bore Diameter: 120.65 mm (4.750 in)
• Ring Configuration per Set: 1st compression (9S3029), 2nd compression (5S6750), oil control (9S7788)
• Ring Dimensions: 120.65 x 3.17 x 4.7 mm / 2.38 x 4.7 mm / 5.5 x 4.8 mm

Compatible Models

Fits Caterpillar Engines: 3304, 3306, 3306C

Fits Caterpillar Equipment: 235, 571G, 930, 1673C, 1674, D4D, D5B, D330C, D333C, D7F, D7G

Replaces Part Number(s):

9S3068, 9S-3068

Aftermarket Interchange Numbers

1P0241, 2P9630, 7S9404, 7S-9404, 2506562, S40963, PAI 305050

New aftermarket replacement part - not remanufactured, not used.