CATEngine Parts

200-3315 Bucket Cylinder Seal Kit — Cat

This bucket cylinder seal kit is essential for maintaining the integrity of the hydraulic cylinder, preventing fluid leakage and ensuring proper operation of the bucket. Composed of high-quality sealing materials, it offers superior resistance to wear and hydraulic fluid compared to a worn-out kit. Failure of these seals typically results in a slow or jerky bucket movement, loss of lifting capacity, or visible hydraulic fluid leaks around the cylinder.

Bucket Cylinder Seal Kit – Part No 200-3315 – 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.

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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
ApplicationBucket hydraulic cylinder
Service LifeReplace every 2,000 hrs or as needed
CompatibilityCAT 3126B, C9, 325C, 325CL
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of seal failure is usually a noticeable decrease in bucket speed or holding power. If left unaddressed, the cylinder may lose pressure rapidly, causing the bucket to drift or fail to lift heavy loads. This can lead to operational inefficiency and potential damage to the bucket or linkage.

Installation Tip

Carefully clean the inside of the cylinder bore and all piston/rod components before installing new seals. Ensure all seal lips are properly oriented to prevent immediate leakage.

Service Note

Inspect the cylinder rod and bore for scoring or damage, and check the hydraulic fluid for contamination when replacing the seal kit.