1979374PK Piston Kit Fits Caterpillar Models

One New Aftermarket Replacement Piston Kit for Caterpillar (Cat) C12 Diesel Engine

This aftermarket replacement piston kit is designed for the Caterpillar C12 inline 6-cylinder diesel engine. The kit restores proper compression and combustion performance by supplying precision-matched components for the upper cylinder assembly. The C12 is a 12.0L heavy-duty diesel engine used across a wide range of Caterpillar construction and on-highway equipment. Note: Piston kits for the C12 may differ based on engine serial number -- provide your engine serial number when ordering to confirm correct fitment. This kit is for the MBL serial number prefix engine family.

Specifications

• Engine: Caterpillar C12 Inline 6-Cylinder Diesel
• Displacement: 12.0L (732 cu. in.)
• Bore: 130.000 - 130.075 mm (5.118 - 5.121 in.)
• Stroke: 150.00 mm (5.906 in.)
• Applicable Serial Prefix: MBL (MBL1-up)
• Engine Years: 1996-2003

Kit Contents

• Piston Crown
• Piston Skirt
• Piston Ring Set
• Piston Pin and Retainers

Compatible Models

Caterpillar C12 Series (MBL1-up, 1996-2003): C12 diesel engines used in Caterpillar on-highway trucks, heavy construction equipment, and industrial applications

Replaces Part Number(s):

1979374PK, 1979374

Aftermarket Interchange Numbers

CK1979374P (Cylinder Kit), MCIF1979374 (Inframe Rebuild Kit reference)

New aftermarket replacement part - not remanufactured, not used.