1290358PK Piston Kit Fits Caterpillar Models

One New Aftermarket Replacement Piston Kit for Caterpillar (Cat) 3304 and 3306 Series Engines

This aftermarket replacement piston kit fits Caterpillar 3304 and 3306 diesel engines used in a wide range of Cat construction, grading, and dozing equipment. The kit is engineered for the direct injection configuration of the 3300 Series engine and includes the piston body with pin and clips. Replaces OEM part number 1290358 (also formatted as 129-0358) and cross-references to Caterpillar number 1W6757 (1W-6757).

Note: Serial number restrictions apply for the 3304 engine. Fitment is confirmed for 3304 serial numbers 12Z676-UP, 12Z2786-UP, 13E300-UP, 3TC1-UP, 4YD2200-UP, and 7Z1300-UP. Verify your engine serial number and arrangement number before ordering to ensure correct fitment.

Specifications

• Engine Series: Caterpillar 3300 (3304, 3306)
• Injection Type: Direct Injection
• Compression Ratio: 15.1:1
• Oil Ring Width: 3mm / .125 in.
• Ring Type: Rectangular Compression Rings
• Rod Type: Tapered Rod
• Kit Includes: Piston body, pin, and clips

Compatible Models

Caterpillar Motor Graders (3300 Series Engine): 120G, 130G

Caterpillar Track-Type Tractors (3300 Series Engine): D4E, D4E LGP, D5B, D5B LGP, D6D, D6H

Caterpillar Wheel Loaders (3300 Series Engine): 936F

Replaces Part Number(s):

1290358, 129-0358

Aftermarket Interchange Numbers

1W6757, 1W-6757, 9N5250, CA1290358, FP1290358

New aftermarket replacement part - not remanufactured, not used.