CATEngine Parts

225-4646 Boom Cylinder Seal Kit — Cat C15 C13

This is a boom cylinder seal kit, containing all necessary seals and O-rings to rebuild a hydraulic boom cylinder. It is manufactured with durable materials to resist high pressures, abrasion, and hydraulic fluid degradation, ensuring a leak-free operation unlike a worn seal that allows fluid bypass. Operators might notice a slow-moving or 'drifting' boom, external fluid leaks, or a loss of lifting capacity.

Boom Cylinder Seal Kit – Part No 225-4646 – 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

152-7554
Bearing
444-6526
Signal Lamp
220-2748
Thermostat
0r3421
1 Pcs Fuel Injector Nozzle
4488804
Engine Parts Component
2274531
Cap As-Engine Oil Filler

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, polyurethane
ApplicationBoom hydraulic cylinder
Service LifeReplace as needed based on operating hours or leakage
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of seal failure is often a visible hydraulic fluid leak around the boom cylinder rod or a noticeable 'drift' of the boom when holding a load. If left unaddressed, internal leakage will worsen, leading to significantly reduced lifting performance and potential system overheating. This can impede the machine's ability to perform its intended work.

Installation Tip

Carefully inspect the cylinder rod for any nicks or scoring before installing new seals, as imperfections can quickly damage them. Ensure all seals are properly seated and lubricated before reassembling the cylinder.

Service Note

Inspect the hydraulic fluid for contamination and check the cylinder barrel for wear or damage when replacing the boom cylinder seals.