CATHydraulic Parts

1163578 Cylinder Gp- Boom — Cat 325B L 330B

This is a Caterpillar boom cylinder group, essential for controlling the lifting and lowering functions of excavator equipment. It is manufactured to meet stringent OEM standards, ensuring superior durability and performance compared to worn or damaged cylinders. Operators may notice slow or jerky boom movements, or a complete inability to raise the boom, if this component fails.

Cylinder Gp- Boom – Part No 1163578 – 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

IST.', };

Related CAT Parts

From the same category — may also be needed

1070624
Cylinder Gp- Lift
676052
Caterpillar Spring Valve 676052
CTP1350264OH6A4
1111815
4J4233
Hydraulic Component
1003414
Pump G
2550897
Caterpillar Guide-Valve Exhaust 2550897

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 Cylinder Assembly
MaterialSteel alloy, NBR seals
ApplicationBoom actuation circuit
Service LifeReplace based on inspection, typically 5,000-10,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing boom cylinder is often a noticeable decrease in lifting capacity or a slow response to hydraulic commands. If ignored, the cylinder may begin to leak internally or externally, leading to uncontrolled descent of the boom. Continued operation with a compromised cylinder risks damage to adjacent hydraulic components and structural elements.

Installation Tip

Ensure all hydraulic lines are thoroughly flushed before installation to remove any contaminants that could damage the new cylinder's seals. Avoid overtightening the mounting bolts, as this can distort the cylinder body and lead to premature seal failure.

Service Note

Inspect hydraulic fluid levels and condition, and check the main hydraulic pump and control valves for proper operation.