CATEngine Parts

370-1869 Bucket Cylinder Seal Kit — Cat C18 C18

This bucket cylinder seal kit is a comprehensive set of replacement seals engineered to restore the sealing performance of the hydraulic bucket cylinder. Manufactured to meet rigorous OEM standards, these seals are essential for preventing hydraulic fluid loss and maintaining optimal cylinder operation, unlike worn seals that compromise efficiency. Operators might experience slow or weak bucket curl/dump actions, external fluid leaks from the cylinder, or the bucket drifting when this seal kit is compromised.

Bucket Cylinder Seal Kit – Part No 370-1869 – 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

Related CAT Parts

From the same category — may also be needed

5s-1601-5s1601
Hydraulic Pump 5S 1601
231-8132
Cabin Air Filter
1B8721
Woodruff Key
6l7813
Engine Parts Component
207-6806
Solenoid Valve
174-1494
Blower Motor

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 and polyurethane
ApplicationHydraulic bucket cylinder
Service LifeReplace when leaks or performance issues are detected
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing bucket cylinder seal kit typically first manifests as sluggish or incomplete bucket curl or dump movements, or noticeable hydraulic fluid leakage around the cylinder rod. If ignored, the leaks will increase, leading to a significant loss of hydraulic pressure and power, potentially causing the bucket to drift or fail to hold its position under load.

Installation Tip

Before installing new seals, carefully inspect the cylinder bore and piston rod for any scratches or debris that could damage the new sealing elements. Ensure all seals are properly seated and lubricated with the correct hydraulic fluid.

Service Note

When replacing bucket cylinder seals, it is recommended to inspect the hydraulic fluid for contamination and check the condition of the hydraulic pump.