CATHydraulic Parts

421-5479 Hydraulic Filter — Cat 232D 236D

This is a high-efficiency hydraulic filter designed to remove contaminants from the hydraulic fluid, protecting sensitive system components. It is manufactured to meet stringent OEM filtration standards, offering superior particle capture and flow characteristics compared to a clogged or damaged filter. Operators may notice increased hydraulic system noise, sluggish operation, or overheating if this filter becomes restricted.

Hydraulic Filter – Part No 421-5479 – 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 Filter
MaterialCellulose, synthetic media
ApplicationHydraulic system filtration
Service LifeReplace every 500-1000 hrs or as indicated
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a clogged hydraulic filter is often a gradual decrease in the speed and responsiveness of hydraulic functions. As the filter becomes more restricted, the hydraulic system may start to overheat, and the pump may make unusual noises due to increased suction restriction. Ignoring a severely clogged filter can lead to hydraulic component damage from wear particles or pump cavitation.

Installation Tip

Ensure the area around the filter housing is clean before removal to prevent dirt from entering the hydraulic system. Lubricate the new filter's rubber gasket with clean hydraulic oil before screwing it on hand-tight plus an additional 3/4 turn.

Service Note

When replacing the hydraulic filter, it is advisable to check the condition of the hydraulic fluid and inspect the hydraulic pump for any signs of wear.