Raw Water Pump 3907458 3912019 for Cummins M70 M71 4B Diesel

Product Overview

This aftermarket replacement raw water pump is intended for the listed Cummins 4B diesel applications, including M70 and M71, and cross-references part numbers 3907458 and 3912019. A raw water pump circulates raw water through a marine engine cooling system to help carry heat away from the engine. It is used when servicing or replacing the corresponding pump on the supported applications.

Key Features & Performance

• Raw water pump designed to circulate raw water through a marine engine cooling system
• Supplied with cross-references to part numbers 3907458 and 3912019 for comparison
• Intended for the listed Cummins 4B diesel applications, including M70 and M71
• Used when servicing or replacing the corresponding raw water pump on the supported engine applications

Fitment & Compatibility

• for Cummins 4B diesel applications
• for M70 applications
• for M71 applications

Common Uses

• Replacing a worn, leaking, or malfunctioning raw water pump
• Routine maintenance of the marine engine cooling system
• Restoring normal raw water circulation after the original pump has failed

Technical Specifications

• Product Type: Raw Water Pump
• Part Number(s): 3907458, 3912019
• Model Application(s): M70, M71
• Engine Application(s): Cummins 4B Diesel

Frequently Asked Questions

Q: What does a raw water pump do? A: A raw water pump circulates raw water through a marine engine cooling system to help carry heat away from the engine and support normal temperature regulation.

Q: How should fitment be verified? A: Compare the complete existing part number and the complete equipment model designation, such as the Cummins 4B, M70, or M71 applications, against the part numbers and applications listed here before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.