Caterpillar 24V Fuel Transfer Pump 446-5409
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Caterpillar M314F, M315F, M316F, M317F, M318F, M320F, M322F
- Caterpillar 312E/F, 313F, 314E/F, 315F, 316E/F, 318E/F, 320E/F
- Caterpillar 323E/F, 324E, 325F, 326F, 329E/F, 330F, 335F
- Caterpillar MH3024, MH3026 and related machines when 446-5409 is installed
Product Overview
A machine that will not draw fuel from a service tank, runs the refueling pump slowly, or has power at the connector but no pump movement may need this unit. Clogged pickup screens, closed valves, damaged hoses, controller output, and low system voltage must be checked first.
The pump moves fuel during refueling or transfer operation; it is not the engine high-pressure injection pump. Correct polarity, dry-run limits, hose routing, and clean fuel are essential.
Match 446-5409, 24-volt rating, connector, ports, mounting feet, pump direction, and machine serial number. Some similar Cat machines use 175-4807 or 518-8137 systems instead.
Key Features & Performance
- 24-volt electric motor and pump assembly
- Ports and mounting pattern for the 446-5409 application family
- Restores transfer flow when electrical and hose checks confirm pump failure
- Designed for auxiliary refueling rather than high-pressure injection
Replaces Part Numbers
- 446-5409
Common Uses
- Repairing an onboard refueling pump that no longer runs
- Replacing a pump motor damaged by contamination or dry running
- Restoring fuel-transfer convenience on a field machine
Technical Specifications
- Product Type: Electric fuel transfer / refueling pump
- Voltage: 24 V DC
- Primary Reference: 446-5409
- Condition: New aftermarket replacement
Installation & Fitment
- Isolate electrical power before service
- Drain or clamp lines using an approved method
- Confirm inlet and outlet direction
- Prime the pump if the machine procedure requires it
- Operate briefly while checking current draw, flow, and leaks
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Is this the engine injection pump? A: No. It is an auxiliary fuel transfer or refueling pump.
Q: Why does my pump run but move no fuel? A: Air leaks, reversed flow, blocked pickup, closed valve, worn pump, or dry suction can prevent transfer.
Q: Does it fit every M320F? A: No. Confirm the machine serial number, installed refueling system, connector, ports, and 446-5409.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Caterpillar 446-5409 fuel pump, M318F 24V transfer pump, M320F refueling pump replacement, Cat excavator auxiliary fuel pump, onboard transfer pump will not run
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.