CATEngine Parts

519-7601 Arm Cylinder Seal Kit — Cat Excavator E320Gc E320Gx

This is an Arm Cylinder Seal Kit designed to replace worn or leaking seals within the hydraulic arm cylinder assembly of specific CAT excavators. It is manufactured to precise tolerances, ensuring a reliable seal that prevents hydraulic fluid loss and maintains optimal cylinder performance, unlike degraded original seals. Operators may observe slow or jerky arm movements, hydraulic fluid leaks around the cylinder, or a loss of lifting capacity when this kit fails.

Arm Cylinder Seal Kit – Part No 519-7601 – 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

src="/assets/js/product-page.js">

Related CAT Parts

From the same category — may also be needed

152-7554
Bearing
443-9543
3 Pcs Piston Ring Kit
220-2748
Thermostat
0r3421
1 Pcs Fuel Injector Nozzle
448-3702
Gear Pump
2272911
Engine Parts Component

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 Cylinder Seal Kit
MaterialNBR rubber, metal
ApplicationHydraulic arm cylinder
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of seal failure is often a visible hydraulic fluid leak around the arm cylinder rod or casing. This can progress to sluggish or erratic movement of the arm, and a noticeable reduction in the machine's lifting force. Continued operation risks significant hydraulic system contamination and potential cylinder damage.

Installation Tip

Carefully clean the cylinder bore and rod before installing new seals to prevent damage from debris. Ensure seals are oriented correctly according to the service manual to prevent immediate leakage.

Service Note

Inspect the hydraulic fluid for contamination and check the condition of the cylinder rod for scoring or damage when replacing the seals.