# 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

## Details

- **Price:** 7538.05 AUD
- **Vendor:** Volvo Penta
- **Type:** Exchange & Reman Units
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 7538.05 AUD | In stock |

## Images

- 3580814 Heat Exchanger | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3580814-heat-exchanger-genuine-volvo-penta)
> Updated: 2026-10-10