JPR-C1040 Aftermarket Cummins N855 Pedestal Seawater Pump 1-1/4 Inch 3010336, 3278137 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement N855 Pedestal Seawater Pump - Part Number: JPR-C1040

New aftermarket engine-cooling seawater pump for Cummins NH220 and NH250, Cummins VT555, Cummins N855, NT855M and NTA855M. It replaces the listed OEM pump family and is supplied as a complete assembled pump. Internal impeller and shaft differ from the original pump because of design changes.

⚙️ Key Features

• Direct aftermarket replacement for JPR-C1040

• Heavy-duty marine-grade bronze or corrosion-resistant pump construction

• Pedestal-mounted engine-driven pump

• Port configuration: 1-1/4-inch hose ports

• Serviceable flexible-impeller design with replaceable cover, cam, seal, shaft and bearings

🧰 Kit / Assembly Contents

• 1 × Complete seawater pump assembly - Part Number: JPR-C1040

• 1 × Installed impeller - Installed JMP flexible impeller - re-engineered internal family

• 1 × Installed shaft, bearing, cam and mechanical-seal assembly

• 1 × Installed end cover with gasket or O-ring sealing system

• Mounting / installation: Pump internals are JMP-specific; use JMP service parts

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• JPR-C1040 → Replaces / cross-references 3010336

• JPR-C1040 → Replaces / cross-references 3278137

OEM / Related Numbers:

• 3010336

• 3278137

Aftermarket / Verified Equivalents:

• Jabsco: 7420-0004

• Jabsco: 7420-0101

• Northern Lights: 25-14801

• JMP Marine: JPR-C1040

Service Parts / Kits:

• Major service kit: JMP JSK0020

🚤 Compatibility

Commonly used on:

• JMP Marine / Cummins marine engine-cooling systems

Typically suits:

• Engine models:

• Cummins NH220 and NH250

• Cummins VT555

• Cummins N855, NT855M and NTA855M

• HP / Output Range: Engine- or generator-rating dependent

• Engine Type: Marine diesel, petrol or generator engine as listed above

• Year Range: Engine-model, arrangement and serial-number dependent

• Port / Drive Identification: 1-1/4-inch hose ports; Pedestal-mounted engine-driven pump. Confirm rotation, shaft/gear style, flange, port direction and mounting seal before ordering.

🔌 Function

The engine-driven flexible-impeller seawater pump draws raw water through the vessel's intake and strainer, then circulates it through the heat exchanger, charge-air cooler, exhaust mixer and other seawater-cooled components. Adequate flow is essential for controlling engine and exhaust temperatures.

Common signs of failure:

• Engine or exhaust temperature rises above normal

• Weak or absent seawater discharge at the exhaust outlet

• Impeller blades are cracked, missing, swollen or permanently set

• Water leaks from the pump cover, shaft seal, drain hole or mounting flange

• Bearing noise, shaft play or a seized pump drive

📦 Condition

• New aftermarket replacement seawater pump

• Brand new

• Supplied in original or equivalent packaging