Caterpillar 436-1239 Sea Water Auxiliary Pump | Reman 30R-1359

Caterpillar 436-1239 Sea Water Auxiliary Pump

Caterpillar 436-1239 is a Sea Water Auxiliary Pump designed for use in Caterpillar engine cooling systems. This pump circulates seawater through the cooling circuit to help maintain the correct engine operating temperature, ensuring reliable performance in demanding marine and industrial environments.

For customers looking for a remanufactured alternative, the official Cat Reman replacement is:

Reman Part Number: 30R-1359 (Auxiliary Water Pump)

Features

1. Part Number: 436-1239
2. Reman Part Number: 30R-1359
3. Product Type: Sea Water Auxiliary Pump
4. Direct replacement component
5. Precision engineered for dependable cooling performance
6. Designed for long service life
7. Suitable for demanding marine and industrial applications

Compatible Applications

This auxiliary water pump is used on selected Caterpillar equipment, including:

1. Caterpillar C32 Marine Engines
2. Caterpillar C32 Marine Auxiliary Engines
3. Caterpillar C32 Generator Sets
4. Caterpillar C32 Petroleum Engines
5. Caterpillar CG137-12 Gas Engines

Always confirm compatibility using your engine serial number before ordering.

Why Replace Your Auxiliary Water Pump?

A worn or damaged seawater pump can reduce cooling efficiency and may lead to:

1. Engine overheating
2. Reduced cooling water flow
3. Premature component wear
4. Increased maintenance costs
5. Unexpected downtime

Replacing the pump at recommended service intervals helps maintain reliable engine operation.

Alternative Part Numbers

1. 436-1239 – New Sea Water Auxiliary Pump
2. 30R-1359 – Reman Auxiliary Water Pump