CATHydraulic Parts

1291908 Cylinder Gp — Cat D7H D7R

This is a replacement cylinder assembly, a core component of the hydraulic system that converts fluid pressure into mechanical force for lifting, pushing, or clamping. It is built to meet or exceed OEM performance standards, offering robust construction and reliable operation compared to a worn or leaking cylinder. Operators might observe a loss of lifting capacity, slow or jerky boom/bucket movement, or visible fluid leaks from the cylinder rod seal when this part is failing.

Cylinder Gp – Part No 1291908 – CAT Spare Part
Part Specifications
BrandCAT
CategoryHydraulic Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeCylinder Assembly
MaterialSteel Alloy
ApplicationHydraulic Actuation
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early indications of a failing cylinder assembly include a slight sluggishness in the hydraulic function it controls or minor weeping around the rod seal. If ignored, the cylinder may lose pressure, resulting in significantly reduced lifting capacity and uncontrolled drifting of the implement. Continued operation risks damage to hydraulic pumps and valves due to contaminated fluid.

Installation Tip

Thoroughly flush the hydraulic system and clean the cylinder mounting points before installing the new assembly. Ensure all hydraulic lines are properly connected and free of kinks to prevent internal damage.

Service Note

Inspect hydraulic hoses and fittings connected to the cylinder for signs of wear or leaks, and check the hydraulic fluid for contamination.