CAT 436-1239 AUXILIARY PUMP

The CAT 436-1239 Auxiliary Pump is a genuine Caterpillar sea water auxiliary pump used in compatible cooling system applications. Caterpillar identifies this pump as a cooling-system component that circulates coolant or sea water flow to help maintain engine operating temperature.

Specifications

• Manufacturer: Caterpillar
• Part Number: 436-1239
• Product Type: Sea Water Auxiliary Pump
• System: Cooling system
• Function: Circulates cooling fluid to help maintain engine temperature
• Overall Height: 15.9 in
• Overall Length: 15.1 in
• OEM Component: Genuine Caterpillar part

Key Features

• Genuine Cat auxiliary pump for cooling-system service
• Designed for compatible Caterpillar marine, generator, and engine applications
• Supports engine temperature control through coolant circulation
• Factory-fit part requiring serial-number verification before installation

Typical Applications

• Cooling system repair
• Marine engine auxiliary pump replacement
• Generator set cooling maintenance
• Caterpillar engine service

Cross References

• Cat Parts Store compares 436-1239 with Cat Reman Auxiliary Water Pump 30R-1359.

Machine Compatibility

• Public Cat listings reference C32 generator set, C32 marine engine, C32 marine auxiliary, and CG137-12 gas engine applications.
• Final compatibility must be confirmed by serial number.

Engine Platforms

• C32 and CG137-12 platforms are referenced in Cat compatibility data; verify by serial number before installation.

The CAT 436-1239 Auxiliary Pump is intended for cooling-system service where exact Caterpillar fitment and pump configuration have been verified.

Search Keywords

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