MG 506 Aftermarket Twin Disc Transmission Cooler | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Twin Disc Transmission Cooler - Replacement Part Number: MG 506

Replacement transmission oil cooler for Twin Disc MG506 gearboxes.

⚙️ 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:

• MG 506 (primary transmission-cooler reference)

OEM / Related Numbers:

• MG 506

• MRCTD506

Aftermarket / Verified Equivalents:

• Mr Cool: MRCTD506

🚤 Compatibility

Commonly used on:

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

Typically suits:

• Engine models:

• Twin Disc MG506 and MG506-1 marine transmissions

• Body Diameter: approximately 4 in

• Overall Length: approximately 12-3/4 in

• Construction: copper-nickel with two sacrificial zinc anodes

🔌 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