JPR-S7633 Aftermarket John Deere 6068SFM50 Seawater Pump RE515667 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement 6068SFM50 Tapered-Shaft Seawater Pump - Part Number: JPR-S7633

New aftermarket engine-cooling seawater pump for John Deere 6068SFM50 marine engines using the tapered-keyed pump. It replaces the listed OEM pump family and is supplied as a complete assembled pump. Correct OEM number is RE515657, not RE515667. Use JPR-S7619 for a spline shaft.

⚙️ Key Features

• Direct aftermarket replacement for JPR-S7633

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

• Tapered keyed shaft

• Port configuration: 1-3/4-inch flange ports

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

🧰 Kit / Assembly Contents

• 1 × Complete seawater pump assembly - Part Number: JPR-S7633

• 1 × Installed impeller - JMP 7608-01K / John Deere RE49896 family

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

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

• Mounting / installation: Use JMP service parts; internal parts are not interchangeable with the genuine pump

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• JPR-S7633 → Replaces / cross-references RE515657

• JPR-S7633 → Replaces / cross-references RE517226

• JPR-S7633 → Replaces / cross-references RE540399

• JPR-S7633 → Replaces / cross-references DZ114700

OEM / Related Numbers:

• RE515657

• RE517226

• RE540399

• DZ114700

Aftermarket / Verified Equivalents:

• Sherwood: P1733X

• Earlier Sherwood: P1733F-01

• JMP Marine: JPR-S7633

Service Parts / Kits:

• Major service kit: JMP JSK0133

• Minor service kit: JMP JSM0002

🚤 Compatibility

Commonly used on:

• JMP Marine / John Deere / Sherwood marine engine-cooling systems

Typically suits:

• Engine models:

• John Deere 6068SFM50 marine engines using the tapered-keyed pump

• 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: 1-3/4-inch flange ports; Tapered keyed shaft. 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