2590637 Seal Kit Fits Caterpillar Models

One New Aftermarket Replacement Hydraulic Cylinder Seal Kit for Caterpillar (Cat) 320C / 325C / 330C Excavators

This aftermarket replacement hydraulic cylinder seal kit replaces OEM part number 2590637 (259-0637) and is designed for the dipperstick (arm/stick) cylinder on Caterpillar C-Series excavators. The kit services cylinder number 2096008 and includes all seals required for a full cylinder rebuild: rod seal (U-seal and buffer), dust/wiper seal, piston seal, O-rings, and backup rings.

Specifications

• Rod Diameter: 105 mm
• Bore Diameter: 150 mm
• Piston: 2-piece press-in design
• Cylinder Number: 2096008
• Application: Dipperstick (stick/arm) hydraulic cylinder

Compatible Models

Caterpillar C-Series Excavators (Dipperstick Cylinder):

• 320C Excavator (Dipperstick)
• 320C L Excavator (Dipperstick)
• 325C Excavator (Dipperstick) - Serial Numbers: AMH1-UP, BKW1-UP, BMM1-UP, BTD1-UP
• 325C L Excavator (Dipperstick) - Serial Numbers: AMH1-UP, BKW1-UP, BMM1-UP, BTD1-UP
• 330C Excavator (Dipperstick)

Important: Serial number restrictions apply to the 325C and 325C L. Verify your machine serial number before ordering. Multiple stick cylinder seal kits exist for the 325C series - confirm cylinder number 2096008 matches your machine.

Replaces Part Number(s):

2590637, 259-0637

New aftermarket replacement part - not remanufactured, not used.