CATTransmission Parts

121-7385-1217385 Transmission Pump 121 7385 — Cat 414E 416C

This is a Transmission Pump, specifically designed to circulate hydraulic fluid and generate the necessary pressure for transmission operation. It is built to Caterpillar's exacting standards for flow rate and durability, ensuring consistent hydraulic performance compared to a worn or inefficient pump. Operators might experience delayed gear shifts, a loss of hydraulic power, or overheating of the transmission fluid when this pump begins to fail.

Transmission Pump 121 7385 – Part No 121-7385-1217385 – CAT Spare Part
Part Specifications
BrandCAT
CategoryTransmission 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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Installation & Application Notes

Drain and replace transmission fluid when servicing internal components. Use correct ATF specification. Pre-fill torque converters with fluid before installation. Allow 10 minutes for fluid to settle before checking level.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeTransmission Hydraulic Pump
MaterialAluminum alloy, Steel
ApplicationTransmission hydraulic system
Service LifeReplace as needed based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing transmission pump may include sluggish gear engagement or a slight hesitation when shifting under load. As the pump degrades, operators may notice a significant loss of hydraulic power, delayed or failed gear changes, and a rise in transmission fluid temperature. This can lead to reduced machine performance and potential internal transmission damage.

Installation Tip

Ensure the hydraulic system is thoroughly flushed and clean before installing the new pump to prevent immediate contamination. Never run the pump dry; prime it with clean hydraulic fluid before initial startup.

Service Note

Always replace the transmission filter and flush the hydraulic system when replacing the transmission pump.