CATHydraulic Parts

085-4530-096-4355 Hydraulic Main Pump Spare — Cat

This is a high-performance Hydraulic Main Pump, a core component responsible for generating the high-pressure fluid flow required by the machine's primary hydraulic circuits. It is manufactured to exacting standards to ensure optimal efficiency and longevity, outperforming worn or compromised units. Operators may observe a significant loss of power, slow or unresponsive hydraulic functions, and potential system overheating when this main pump fails.

Hydraulic Main Pump Spare – Part No 085-4530-096-4355 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

Related CAT Parts

From the same category — may also be needed

2246369
Pump Gp-Ps
4901721
Hydraulic Component
1052155
Pump Gp-Vn Bsc-A
2627049
Cylinder Gp- Stabilizer
9Y7895
Caterpillar Guide-Valve 9Y7895
1916760
Valve Seat Insert (Exhaust)

Browse all CAT Hydraulic Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

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 Main Pump
MaterialHigh-strength steel alloy
ApplicationMain hydraulic system
Service LifeReplace based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first noticeable symptom of a failing main hydraulic pump is often a reduction in the speed and power of all hydraulic functions. As the failure progresses, the pump may intermittently lose pressure, causing jerky movements or complete loss of hydraulic operation. If left unaddressed, this can lead to the inability to operate the machine, potentially causing significant downtime and damage to other hydraulic components.

Installation Tip

Ensure all hydraulic lines are properly capped to prevent contamination during the pump replacement process. Never reuse old hydraulic fluid; always refill with fresh, clean fluid of the correct specification.

Service Note

When replacing the main hydraulic pump, inspect the hydraulic system for any signs of contamination and clean or replace hydraulic filters and strainers.