HP5825 Aftermarket SeaStar Power Steering Oil Cooler 3/8 in Oil, 2 x 12 in | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket SeaStar Power Steering Oil Cooler 3/8 in Oil, 2 x 12 in - Replacement Part Number: HP5825

Power-steering oil cooler for SeaStar hydraulic systems using 3/8-inch oil ports.

⚙️ Key Features

• Marine-grade shell-and-tube oil 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:

• HP5825 (3/8-inch oil version)

OEM / Related Numbers:

• HP5825

Aftermarket / Verified Equivalents:

• Mr Cool: MRCHP5825

• SeaStar: HP5825

🚤 Compatibility

Commonly used on:

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

Typically suits:

• Engine models:

• SeaStar engine-driven steering systems specified with HP5825

• Body Diameter: 2 in

• Bundle Length: 12 in

• Overall Length: approximately 15 in

• Oil Connections: 3/8 in

• Water Connections: approximately 1 in

• Minimum Water Flow: approximately 2.5 US GPM

• Minimum Working Pressure: approximately 100 PSI

🔌 Function

The cooler transfers heat from oil into the raw-water circuit without allowing the fluids to mix.

Common signs of failure:

• Oil or steering-fluid temperature rises above normal

• Loss of pressure or reduced transmission/steering performance as oil heats

• Oil sheen at the exhaust outlet or cross-contamination

• External leakage from fittings, seams or tube ends

• Restricted seawater flow, corrosion or internal tube failure

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging