1154124 Piston As Fits Caterpillar Models
1154124 Piston As Fits Caterpillar Models
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One New Aftermarket Replacement Piston Assembly for Caterpillar (Cat) 3100 Series Engines and CB-634C Paving Compactor
This aftermarket replacement piston assembly (Piston As) fits Caterpillar 3114, 3116, and 3126 diesel engines used across a range of machine, industrial, and truck applications, as well as the CB-634C paving compactor. The piston rides in the cylinder bore and converts combustion pressure into crankshaft rotation, forming a critical component of the engine's power assembly. The 3114 and 3116 engines use one-piece aluminum pistons with an iron band for the top two compression rings, while higher-pressure configurations use a two-piece steel crown and aluminum skirt design.
Specifications
- Weight: approximately 3.1 lbs
- Fits standard bore size
- Application: Caterpillar 3100 Series diesel engines (machine, industrial, and truck variants) and CB-634C paving compactor
Compatible Models
Caterpillar Engines: 3114, 3116, 3126
Caterpillar Paving Compactor: CB-634C
Replaces Part Number(s):
1154124, 115-4124, 7E3578
Aftermarket Interchange Numbers
IP115-4124 (ITP/IPT aftermarket), 1154124LK (liner kit variant)
New aftermarket replacement part - not remanufactured, not used.



