61086A7 Aftermarket Mercruiser 3.0L Heat Exchanger | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercruiser 3.0L Heat Exchanger - Replacement Part Number: 61086A7

Direct replacement heat exchanger for closed-cooled MerCruiser 3.0L engines.

⚙️ 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:

• 8M0157284 → Supersedes 61086A7

OEM / Related Numbers:

• 61086A7

• 8M0157284

Aftermarket / Verified Equivalents:

• Seakamp: 61086A7-CN

• Lenco: LE-61086

• Mr Cool: MRC61086A7

🚤 Compatibility

Commonly used on:

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

Typically suits:

• Engine models:

• MerCruiser 3.0L closed-cooled inline-four engines

• Engine Displacement: 181 CID / 3.0L

• Engine Type: GM inline four-cylinder petrol marine engine

🔌 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