CATHydraulic Parts

443-1355 Hydraulic Filter — Cat M317 M315D2

This is a Caterpillar Hydraulic Filter, essential for maintaining the cleanliness and efficiency of the machine's hydraulic system by removing contaminants. Manufactured to meet strict OEM filtration standards, it provides superior particle capture and flow characteristics compared to a clogged or damaged filter. Operators might notice sluggish hydraulic performance, overheating, or premature wear of hydraulic components if this filter is failing.

Hydraulic Filter – Part No 443-1355 – 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 per manual
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A clogged hydraulic filter will first present as a gradual slowdown in hydraulic functions or increased operating temperatures. If left unreplaced, the filter's bypass valve may open, allowing unfiltered fluid to circulate, leading to accelerated wear on pumps and valves. The ultimate consequence is potential hydraulic system failure and costly repairs.

Installation Tip

Ensure the area around the filter housing is clean before removal to prevent dirt from entering the hydraulic system. Hand-tighten the new filter securely, then give it an additional 3/4 to 1 full turn as per standard practice, avoiding overtightening.

Service Note

Inspect the hydraulic fluid for signs of contamination or degradation when replacing the hydraulic filter.