CATEngine Parts

100-3412 Rotating Group Hydraulic Pump — Cat 3306 3406

This is a CAT Rotating Group for a hydraulic pump, containing the essential internal components that generate hydraulic flow and pressure. It is manufactured to meet strict OEM performance specifications, ensuring precise operation and longevity over a worn or damaged assembly. Operators may experience sluggish hydraulic functions, loss of power, or unusual noises from the hydraulic system if this rotating group fails.

Rotating Group Hydraulic Pump – Part No 100-3412 – 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 Pump Rotating Group
MaterialHardened Steel Alloy
ApplicationHydraulic System
Service LifeReplace as needed based on performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing rotating group is often a noticeable decrease in hydraulic system performance, such as slower boom or bucket movements. If left unaddressed, the pump will continue to lose efficiency, leading to a significant loss of operational power and potential system overheating. Continued use with a degraded rotating group can cause further damage to the entire hydraulic system.

Installation Tip

Thoroughly clean the inside of the hydraulic pump housing and ensure all passages are clear before installing the new rotating group. Misalignment during installation can quickly damage the new components.

Service Note

Inspect the hydraulic fluid for contamination and replace the hydraulic filter when servicing the pump rotating group.