23535447 Marine Raw Water Pump for Detroit Diesel Series 60

Heavy-Duty Marine Seawater Cooling Pump Replacement

The 23535447 Marine Raw Water Pump is a replacement engine cooling component for applicable Detroit Diesel Series 60 marine diesel engines. Manufactured by JMP Marine under part number JPR-G6500, this seawater pump is engineered to deliver reliable raw water circulation through the marine engine cooling system.

Marine diesel engines operate in demanding environments where dependable cooling is essential. A properly functioning raw water pump helps transfer seawater through the engine’s marine cooling circuit, supporting heat exchanger operation and maintaining appropriate engine operating temperatures.

The JMP JPR-G6500 is a replacement option for Detroit Diesel seawater pump part numbers 23535447, 23525200, and 23522735, as well as Jabsco pump numbers 17540-0001 and 17540-0201.

Whether replacing a worn pump during scheduled maintenance or addressing cooling system performance concerns, this replacement assembly offers a serviceable solution for compatible Detroit Diesel Series 60 marine engines.

Key Features and Benefits

Marine-Grade Heavy-Duty Construction

Built for demanding marine environments, the pump incorporates a heavy-duty metal casting and marine-grade shaft materials. Its construction is designed to support durability and dependable operation in seawater cooling applications.

High-Performance Flexible Impeller

The pump uses JMP replacement impeller part number 9000-01. The flexible impeller creates suction and moves cooling water through the pump housing, supporting seawater flow through the cooling circuit.

Heavy-Duty Bronze Cam Liner

The integrated bronze cam liner helps compress the flexible impeller vanes as the pump rotates, enabling the pumping action required to move cooling water.

Direct Replacement Application

The JPR-G6500 is marketed as a direct replacement for the listed Detroit Diesel and Jabsco seawater pumps. Buyers should verify the existing installation, port configuration, and engine application before purchase.

Serviceable Pump Design

Replacement components are available for ongoing maintenance, including impellers, seals, cam liners, wear plates, and major or minor service kits.

Designed for Marine Diesel Cooling Systems

The pump is intended for raw water cooling applications on compatible Detroit Diesel Series 60 marine engines, including installations using seawater or another external cooling-water source.

Detroit Diesel Series 60 Marine Engine Compatibility

This JMP JPR-G6500 seawater pump is listed for applicable Detroit Diesel Series 60 marine engines requiring OEM raw water pump number 23535447 or a verified interchangeable part number.

Typical applications include marine propulsion installations and other compatible marine diesel cooling configurations.

Important: Not every Detroit Diesel Series 60 engine uses this pump. Automotive and industrial Series 60 configurations may employ different coolant pumps or cooling arrangements.

Before ordering, verify the pump part number, mounting arrangement, inlet and outlet configuration, and engine serial number.

OEM and Replacement Part Number Cross-Reference

These part numbers identify replacement or interchange references for the applicable marine raw water pump configuration. They do not establish universal interchangeability across all Series 60 installations.

Technical Specifications

When Should a Marine Raw Water Pump Be Replaced?

Raw water cooling pumps operate under demanding conditions and require periodic inspection and maintenance.

Common indications that a pump may need servicing or replacement include:

• Reduced seawater discharge or insufficient cooling-water circulation

• Unexplained increases in engine operating temperature

• Water leakage around the pump or mechanical seal

• Worn, damaged, or missing impeller vanes

• Excessive shaft play or bearing noise

• Visible deterioration of internal pump components

These symptoms can also result from other cooling-system faults, including blocked strainers, damaged hoses, or restricted heat exchangers. Proper diagnosis is recommended before replacing the pump.

Replacement Impellers and Maintenance Parts

The JMP JPR-G6500 is designed with serviceable internal components.

Available replacement components include:

• 9000-01: JMP flexible impeller

• 23502086: Detroit Diesel impeller cross-reference

• CAMSET0019: Cam liner

• MCSSET0007: Mechanical seal set

• JSM0004: Minor service kit

• JSK0079: Major service kit

• WER0011: Wear plate

• SHA0091: Replacement pump shaft

Replacement impellers and maintenance kits are sold separately unless specifically included in the selected product package.

Never operate a flexible impeller marine cooling pump without adequate water supply, as dry operation can damage the impeller and seals.

Order Your Detroit Diesel 23535447 Replacement Pump from Heavy Duty Kits

Heavy Duty Kits supplies replacement diesel engine parts for marine, industrial, commercial, and heavy-duty applications.

If you are replacing a Detroit Diesel 23535447 seawater pump, the JMP JPR-G6500 provides an aftermarket replacement option for the listed engine and pump applications.

For assistance identifying the correct pump, provide your Detroit Diesel engine serial number, existing seawater pump part number, or photographs of the existing assembly.

Keep your marine engines running with the right replacement parts from Heavy Duty Kits.