1521390PK Piston Kit Fits Caterpillar Models

One New Aftermarket Replacement Piston Kit for Caterpillar (Cat) 3054 / 3056 Engines

This aftermarket replacement piston kit replaces OEM part number 1521390 (152-1390) and is designed for the Caterpillar 3054 and 3056 four-cylinder diesel engines found across a wide range of Cat construction, compaction, paving, forestry, and material handling equipment. The kit includes the piston assembly with pin, retainers, and ring set for one cylinder, restoring proper compression and engine performance during overhaul or rebuild.

Note: Piston kits for the 3054 engine may vary based on engine serial number. Early model applications use engine serial numbers 5YS1-13498; late model applications use serial numbers 5YS13499 and up. Verify your engine serial number before ordering.

Specifications

• Piston OD: 100 mm
• Pin Bore: 39.70 mm
• Total Height: 108.26 mm
• Weight: approx. 3 lbs (1 kg)

Compatible Models

Caterpillar Engines: 3054, 3054B, 3056

Caterpillar Excavators: 312B L, 312C, 315B L

Caterpillar Backhoe Loaders: 416C, 416D, 420D, 426C, 428C, 428D, 430D, 432D, 436C, 438C, 438D, 442D

Caterpillar Wheel Loaders: 908, 924G, 924GZ

Caterpillar Asphalt Pavers: AP-800C, BG-225B, BG-225C, AP-650B, BG-230

Caterpillar Compactors: CB-434C, CB-534C, CB-535B, CP-433C, CS-431C, CS-433C, CS-433E, CP-433E, CS-663E, CP-663E, CS-683E, PS-150B, PS-200B, PS-300B, PS-360B, PF-290B, PF-300B, CS-323C, CP-323C

Caterpillar Telehandlers: TH62, TH63, TH82, TH83, TH103, TH355B, TH360B, TH350B, TH460B

Caterpillar Forest Products: 554

Caterpillar Wheeled Excavators: M312, M315

Replaces Part Number(s):

1521390, 152-1390, 1521390PK

Aftermarket Interchange Numbers

1382047, FPDFP1521390, FPDFP-1521390

New aftermarket replacement part - not remanufactured, not used.