CATEngine Parts

163-3751 Bucket Cylinder Bushing — Cat 320B 320C

This is a bucket cylinder bushing, a wear component designed to provide a low-friction bearing surface for the bucket cylinder's pivot points, ensuring smooth and efficient operation of the bucket linkage. It is manufactured from hardened steel to withstand high loads and abrasion, unlike a worn bushing that develops excessive play and binding. Operators will notice increased play or looseness in the bucket linkage, difficulty in controlling bucket movement, or audible clunking noises during operation if this bushing is failing.

Bucket Cylinder Bushing – Part No 163-3751 – 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 TypeCylinder Bushing
MaterialHardened steel
ApplicationBucket Cylinder Pivot
Service LifeReplace as needed based on wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a worn bucket cylinder bushing is excessive play or looseness in the bucket linkage, leading to imprecise bucket control. As wear progresses, the linkage may bind, causing jerky movements and increased stress on hydraulic components. Continued operation with worn bushings can lead to damage of the cylinder eye and linkage ears, resulting in costly repairs.

Installation Tip

Ensure the bore in the linkage ear is clean and free of burrs before attempting to press in the new bushing. Avoid using excessive force or hammering, which can damage the bushing or the linkage.

Service Note

Inspect the bucket cylinder pin and the linkage ears for wear or damage when replacing the bucket cylinder bushing.