CPH-650 Aftermarket Tandem Oil Cooler | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Tandem Oil Cooler - Replacement Part Number: CPH-650

High-capacity tandem cooler with separate oil and power-steering circuits.

⚙️ Key Features

• Marine-grade tandem shell-and-tube cooler

• Designed as a direct replacement for the listed reference numbers

• Helps maintain stable operating temperature under sustained marine load

• Marine connection sizes and mounting points must match the original assembly

• Suitable for professional marine cooling-system service and replacement

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• CPH-650 (primary reference)

OEM / Related Numbers:

• CPH-650

Aftermarket / Verified Equivalents:

• Mr Cool: CPH-650

🚤 Compatibility

Commonly used on:

• Marine-grade tandem shell-and-tube cooler systems

Typically suits:

• Engine models:

• High-output marine engine and steering systems specified with CPH-650

• Body Diameter: 3 in

• Overall Length: 25 in

• Water Connection: 1 in threaded

• Power-Steering Connections: 3/8 in NPT

• Engine/Transmission Oil Connections: 3/4 in NPT

• Working Pressure: approximately 150 PSI

• Power Rating: up to approximately 850HP

🔌 Function

The tandem cooler uses separate oil passages and a common seawater circuit to control two fluid systems.

Common signs of failure:

• One or both fluid circuits run hotter than normal

• Pressure or performance falls as the oil heats

• Oil sheen or cross-contamination appears

• External leakage develops around fittings or seams

• Restricted seawater flow or internal tube failure

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging