CATHydraulic Parts

1278932 Cylinder As — Cat D6R D6R II

This is a Caterpillar Cylinder Assembly, a vital component in the hydraulic system that converts hydraulic pressure into mechanical force to move machine components. It is engineered to withstand high pressures and demanding operational cycles, ensuring consistent performance where a worn cylinder might exhibit leaks or reduced stroke. Operators may notice a loss of lifting capacity, slow movement, or the cylinder drifting under load when it begins to fail.

Cylinder As – Part No 1278932 – 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 TypeHydraulic Cylinder Assembly
MaterialSteel alloy
ApplicationHydraulic actuation system
Service LifeReplace as needed based on inspection
CompatibilityD6R, D6R II
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A failing cylinder assembly may first present as a slow leak from the seals or a noticeable drift in the equipment's function when not actively being controlled. If left unaddressed, the leak will worsen, leading to a significant loss of hydraulic force and potentially uncontrolled movement of the attached implement. This poses a risk of reduced productivity and potential damage to the equipment or surrounding environment.

Installation Tip

Thoroughly clean the cylinder bore and rod before installation to prevent contamination from entering the hydraulic system. Ensure the rod is properly aligned with the cylinder bore during insertion to avoid damaging the seals.

Service Note

Inspect the hydraulic hoses connected to the cylinder for wear or leaks, and check the hydraulic fluid level and condition.