JPR-CT3508 Aftermarket Caterpillar 3508 Gilkes-Style Seawater Pump 7C3614 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement 3508/3512/3516 Gilkes-Style Seawater Pump - Part Number: JPR-CT3508

New aftermarket engine-cooling seawater pump for Caterpillar 3408 and 3408B, Caterpillar 3412, 3412C, 3412D and 3412E, Caterpillar 3508, 3508B and 3508C, Caterpillar 3512, 3512B and 3516B. It replaces the listed OEM pump family and is supplied as a complete assembled pump. Confirm whether the engine requires the 7C3613/JPR-CT3412 or 7C3614/JPR-CT3508 pump.

⚙️ Key Features

• Direct aftermarket replacement for JPR-CT3508

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

• Gear-driven Gilkes-style pump

• Port configuration: Gilkes-style flange connections

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

🧰 Kit / Assembly Contents

• 1 × Complete seawater pump assembly - Part Number: JPR-CT3508

• 1 × Installed impeller - Bronze impeller - JMP IMP0063 / Caterpillar 5N2618

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

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

• Mounting / installation: Drive gear and external mounting components handled according to engine arrangement

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• JPR-CT3508 → Replaces / cross-references 7C3614

• JPR-CT3508 → Replaces / cross-references 5N2600

• JPR-CT3508 → Replaces / cross-references 0R7721

OEM / Related Numbers:

• 7C3614

• 5N2600

• 0R7721

Aftermarket / Verified Equivalents:

• Gilkes M Series: 44953-054

• JMP Marine: JPR-CT3508

Service Parts / Kits:

• Major service kit: JMP JSK0125

• Mechanical seal kit: JMP JMK0002

🚤 Compatibility

Commonly used on:

• JMP Marine / Caterpillar / Gilkes marine engine-cooling systems

Typically suits:

• Engine models:

• Caterpillar 3408 and 3408B

• Caterpillar 3412, 3412C, 3412D and 3412E

• Caterpillar 3508, 3508B and 3508C

• Caterpillar 3512, 3512B and 3516B

• 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: Gilkes-style flange connections; Gear-driven Gilkes-style 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