CATHydraulic Parts

1863732 Pump Gp-Piston — Cat 966G II 972G II

This is a CAT Piston Pump Group, a critical component in the hydraulic system responsible for generating high-pressure fluid flow to operate various machine functions. It is manufactured to meet stringent OEM standards, ensuring superior durability and performance compared to worn or damaged units. Operators may notice a loss of hydraulic power, slow or erratic implement movement, or increased system noise when this pump begins to fail.

Pump Gp-Piston – Part No 1863732 – 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

PM IST.', };

Related CAT Parts

From the same category — may also be needed

1227375
Guide-Valve
4J4232
Hydraulic Component
1478218
Valve Seat Insert (Exhaust)
160-0196
Hydraulic Gear Pump
5K9894
Straight
3293796
Tube As-Oil Jet

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 TypePiston Pump Group
MaterialHardened Steel Alloy
ApplicationMain Hydraulic System
Service LifeReplace based on performance degradation or 4,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure may include a noticeable decrease in hydraulic system performance, such as slower boom or bucket movements. If left unaddressed, the pump's efficiency will continue to degrade, leading to intermittent operation and potential overheating of the hydraulic fluid. Continued operation with a failing pump risks damage to other sensitive hydraulic components.

Installation Tip

Ensure the hydraulic system is completely flushed and clean before installing the new pump to prevent immediate contamination. Avoid overtightening hydraulic fittings, as this can damage the pump's ports or the connecting lines.

Service Note

Always inspect and replace the hydraulic filter element and check the hydraulic oil condition when replacing the piston pump.