RE504480 Aftermarket John Deere Heat Exchanger Bundle Insert | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket John Deere Heat Exchanger Bundle Insert - Replacement Part Number: RE504480

Replacement tube-stack insert for compatible John Deere marine heat-exchanger housings.

⚙️ Key Features

• Marine-grade shell-and-tube heat exchanger

• 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:

• RE504480 (bundle-insert reference)

OEM / Related Numbers:

• RE504480

• MRCRE504480

Aftermarket / Verified Equivalents:

• Mr Cool: MRCRE504480

🚤 Compatibility

Commonly used on:

• Marine-grade shell-and-tube heat exchanger systems

Typically suits:

• Engine models:

• John Deere marine engines whose exchanger diagram specifies RE504480

• Part Type: heat-exchanger tube-stack insert

• Existing housing and end covers must be serviceable

🔌 Function

The heat exchanger keeps closed-loop coolant separate from seawater while transferring heat through the tube stack.

Common signs of failure:

• Engine or generator temperature rises above normal under load

• Coolant loss or seawater leakage around the exchanger

• Restricted seawater flow from scale, debris or damaged tubes

• Coolant contamination caused by an internal tube failure

• Corroded end covers, tube stack or sacrificial anode

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging