CATEngine Parts

155-9107 Piston Motor — Cat 330D

This is a high-performance piston motor designed to convert hydraulic pressure into mechanical rotational force within heavy equipment systems. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and efficiency compared to worn or damaged units. Operators may notice a loss of power, sluggish hydraulic response, or unusual noises when this component begins to fail.

Piston Motor – Part No 155-9107 – 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

M IST.', };

Related CAT Parts

From the same category — may also be needed

7Y1874
Spring
313-6014
Solenoid Valve
333-8242
24V Solenoid Valve
297-4587-297-4588
Joystick Controller 297 4587
153-5964
Thermostat
3341996
Kit-Piston Rings

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 TypePiston Motor
MaterialHardened Steel Alloy
ApplicationHydraulic System Drive
Service LifeReplace based on performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing piston motor include a noticeable reduction in operational power and slower response times. If ignored, the motor may begin to leak internally, further diminishing performance and potentially causing overheating of the hydraulic system. Continued operation with a compromised motor risks damage to other hydraulic components and unscheduled downtime.

Installation Tip

Thoroughly flush the hydraulic system to remove any debris before installation to prevent contamination of the new motor. Avoid overtightening hydraulic line fittings, as this can damage the port threads.

Service Note

Inspect hydraulic fluid and filters for signs of metal particles, which could indicate wear in the old motor or other hydraulic components.