604-0103 Takeuchi TB280FR/TB290 Thumb Cylinder - Aftermarket

604-0103 Aftermarket Takeuchi Thumb Cylinder

This 604-0103 hydraulic thumb cylinder is an aftermarket replacement for Takeuchi TB280FR and TB290 excavator applications. It is built for the hydraulic thumb circuit and should be matched by both equipment application and cylinder dimensions before ordering.

604-0103 Cylinder Specifications

• Application: Hydraulic thumb cylinder
• Takeuchi models: TB280FR and TB290
• Bore: 3"
• Stroke: 37.32"
• Rod diameter: 1.75"
• Retracted pin centers: 39.75" pin-to-pin
• Pressure rating: 3,000-3,500 PSI

Confirm the Cylinder Dimensions

Do not order a Takeuchi thumb cylinder from the machine model alone. Aftermarket cylinders listed for TB280FR and TB290 equipment can have different dimensional specifications. Confirm the 604-0103 reference number and compare the bore, stroke, rod diameter and pin-to-pin measurement with the cylinder being replaced.

This is especially important for the stroke dimension. A cylinder with the same 3" bore and 1.75" rod may still have a different stroke and mounting geometry and should not be assumed interchangeable.

Need help checking fitment? Contact Union Hydraulics with your Takeuchi model, serial number, existing cylinder number and measured dimensions and we'll help compare the available replacement.