CATEngine Parts

186-2821-10r-2521 Hydraulic Piston Pump — Cat 3508

This is a high-pressure hydraulic piston pump designed to deliver fluid flow for the main hydraulic system. Manufactured to meet rigorous OEM standards, it provides consistent performance and durability, unlike a worn pump with reduced output. Operators may notice sluggish hydraulic functions, decreased lifting capacity, or erratic system operation when this pump begins to fail.

Hydraulic Piston Pump – Part No 186-2821-10r-2521 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine 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

ipt>

Related CAT Parts

From the same category — may also be needed

3196715
Body As.-Piston
509-9705
Governor Motor
9Y4004lK
Engine Parts Component
sf4826pxi
Bearing
220-3398
Hydraulic Valve
1713063
Camshaft

Browse all CAT Engine 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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeHydraulic Piston Pump
MaterialHardened steel, aluminum alloy
ApplicationMain hydraulic system
Service LifeReplace as needed based on performance testing
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing hydraulic piston pump include a noticeable decrease in the speed and power of hydraulic functions. If left unaddressed, the pump's performance will continue to degrade, leading to intermittent operation and potential system overheating. Continued use risks significant damage to other hydraulic components.

Installation Tip

Thoroughly flush the hydraulic system with new, clean fluid before installing the new pump to remove any debris. Avoid overtightening hydraulic line fittings, as this can damage the ports.

Service Note

Inspect hydraulic fluid levels, filters, and hoses for contamination or wear when replacing the hydraulic piston pump.