3580814 Heat Exchanger | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta heat exchanger from the Cooling System group, weighing 19.251 kg and listed for three applications across TMD and MD series engines. It is a shell-and-tube unit, carrying engine coolant on one side of the stack and raw water on the other. It supersedes part number 861581.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD22A
• Volvo Penta MD22A
• Volvo Penta MD22L

• Engine Family: TMD, MD

⚙️ Key Features

• 19.251 kg
• Shell-and-tube coolant to raw water construction
• Supersedes 861581
• Three applications across TMD and MD series engines
• Also supersedes Volvo part number 859784

🔌 Function

Transfers heat from the engine coolant into the raw seawater passing through it.

⚠️ Common Signs of Failure

• Overheating under load with the raw water pump working correctly
• Coolant loss into the seawater side, or seawater in the coolant
• Tube stack fouled with scale, silt or shed impeller vanes
• External corrosion at the end covers
• Weeping at the end seals

🛠️ Service Notes

• Shed impeller vanes collect here - check the tube stack whenever a seawater pump has failed
• Heat exchanger 3580815 is more than twice the weight on an overlapping engine list, so order strictly by part number
• Renew the end seals on reassembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3580814 → Supersedes 861581

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging