Sherwood M-71 Marine Raw Water Cooling Pump for Cummins Diesel Engines
The Sherwood M-71 pump is a precision-engineered raw water cooling pump designed specifically for Cummins marine diesel engines including the 4B, 4BT, 6B, and 6BT series. This gear-driven flange-mounted pump operates with 1.25-inch ports and delivers reliable seawater circulation for engine cooling systems aboard commercial vessels, fishing boats, and recreational yachts. The pump features durable construction that withstands harsh saltwater environments while maintaining consistent performance in demanding marine applications.
With OEM part numbers 3912019 and 3907458, the Sherwood M-71 pump integrates seamlessly into existing Cummins engine cooling systems. The pump's robust design ensures extended service life and minimal maintenance requirements, making it an ideal replacement component for marine vessel operators seeking dependable cooling solutions. As a Pentair Sherwood product, this pump represents decades of marine engineering excellence and proven reliability in international waters.
The M-71 pump configuration provides optimal fluid circulation rates necessary for maintaining proper engine operating temperatures during extended voyages and continuous-duty operations. Whether upgrading an aging cooling system or performing preventive maintenance, this pump delivers the performance and durability expected from premium marine engine components, ensuring your vessel's engine operates at peak efficiency in all sea conditions.
Key Features
- Gear-driven design for reliable long-term operation
- Flange-mounted configuration for easy installation
- 1.25-inch inlet and outlet ports
- Compatible with Cummins 4B, 4BT, 6B, and 6BT engines
- OEM part numbers 3912019 and 3907458
- Pentair Sherwood quality construction
- Saltwater corrosion-resistant materials
- Compact footprint for marine engine bay installation
Applications
- Commercial fishing vessel cooling systems
- Recreational yacht engine cooling
- Trawler and workboat propulsion systems
- Marine diesel engine thermal management
- Replacement cooling pump for aging systems
- Seawater circulation in marine environments
Specifications
- Model: M-71
- Type: Gear-driven raw water pump
- Mount Type: Flange mount
- Port Size: 1.25 inches
- Manufacturer: Pentair Sherwood
- OEM Cummins Part Numbers: 3912019, 3907458
- Engine Applications: 4B, 4BT, 6B, 6BT diesel engines
- Operating Medium: Saltwater and raw water
- Drive Type: Direct engine-driven via coupling
Frequently Asked Questions
Q: What engines are compatible with the Sherwood M-71 pump?
The Sherwood M-71 pump is designed for Cummins marine diesel engines including 4B, 4BT, 6B, and 6BT series, commonly found in commercial fishing boats, trawlers, and recreational yachts.
Q: What do the OEM part numbers 3912019 and 3907458 represent?
These are official Cummins part numbers for the Sherwood M-71 raw water cooling pump, used interchangeably for ordering replacement components or identification purposes in marine applications.
Q: Can the M-71 pump handle continuous saltwater circulation?
Yes, the Sherwood M-71 features corrosion-resistant materials specifically engineered for continuous saltwater and raw water circulation, making it ideal for extended maritime operations in harsh ocean environments.
Q: What is the port size for connecting inlet and outlet lines?
The M-71 pump features 1.25-inch ports on both inlet and outlet connections, accommodating standard marine cooling system hose configurations found on most Cummins-powered vessels.
Q: Is the Sherwood M-71 considered an OEM replacement pump?
Yes, the Sherwood M-71 is an original equipment manufacturer (OEM) approved pump for Cummins engines, making it an authentic replacement component suitable for factory-specified cooling system requirements.
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