8M0095815 Aftermarket Mercruiser 8.2L MAG Heat Exchanger 3.5 in | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercruiser 8.2L MAG Heat Exchanger 3.5 in - Replacement Part Number: 8M0095815

Later 3-1/2-inch heat exchanger for MerCruiser 8.2L closed-cooling systems.

⚙️ 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:

• 8M0095815 → Supersedes 8M0045230 after serial 2A051741

OEM / Related Numbers:

• 8M0095815

• 8M0045230

• 8M2017231

• 8M0045236

Aftermarket / Verified Equivalents:

• Mr Cool: MRC8M0095815

• Seakamp: 8M0095815 replacement

🚤 Compatibility

Commonly used on:

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

Typically suits:

• Engine models:

• 8.2 MAG, MAG HO and EC

• 8.2 MIE, MIE HO and EC

• 540HP 8.2L applications

• Engine Displacement: 8.2L

• Heat-Exchanger Diameter: 3-1/2 in

• Serial Reference: 2A051742 and later

🔌 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