CATEngine Parts

3137770 Fuel Transfer Pump — Cat 3508 3512

This is a fuel transfer pump, responsible for drawing fuel from the tank and delivering it under pressure to the main fuel injection system. It is built to meet strict OEM performance and durability standards, ensuring consistent fuel delivery compared to a worn pump that may cause fuel starvation. Operators might experience engine sputtering or hesitation, difficulty starting, or a complete loss of engine power when this pump fails.

Fuel Transfer Pump – Part No 3137770 – 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 TypeFuel Transfer Pump
MaterialSteel, aluminum, and seals
ApplicationFuel delivery system
Service LifeReplace as needed based on performance
CompatibilityCAT specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing fuel transfer pump include intermittent engine sputtering or hesitation, especially under load, and potentially longer cranking times to start. If the pump's output pressure drops significantly, the engine may run rough or lose power. Complete failure of the pump will result in fuel starvation to the injection system, causing the engine to stop running.

Installation Tip

Ensure all fuel lines are properly connected and sealed to prevent air intrusion into the fuel system after installation. Do not operate the engine until the fuel system has been properly bled of air.

Service Note

Always replace the primary and secondary fuel filters when replacing the fuel transfer pump.