CATHydraulic Parts

4T6889 Hydraulic Component — Cat 426 428

This is a critical hydraulic component that manages fluid flow and pressure within the machine's hydraulic system. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn or damaged units. Operators may notice sluggish hydraulic functions, loss of lifting capacity, or erratic boom/attachment movements when this component begins to fail.

Hydraulic Component – Part No 4T6889 – 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 Component
MaterialHigh-strength steel alloy
ApplicationMain hydraulic system
Service LifeReplace based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure may include a slight decrease in hydraulic system responsiveness or a faint whining noise. If ignored, the component's performance will degrade further, leading to significantly reduced power and potential overheating of the hydraulic fluid. Continued operation with a failing component risks damage to other critical hydraulic parts.

Installation Tip

Ensure the hydraulic system is properly flushed and clean before installation to prevent contamination of the new component. Avoid overtightening mounting bolts, as this can distort the component housing and cause leaks.

Service Note

Inspect hydraulic fluid, filters, and seals for wear or contamination when replacing this component.