# 21202084 Heat Exchanger | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta complete heat exchanger used in the cooling system identified by part number 21202084. The approximately 25 kg assembly transfers heat from the closed engine-coolant circuit to the raw-water or secondary cooling circuit and must be selected by exact product specification because adjacent 21202086 and 21202089 units are different assemblies.

## ⚙️ Key Features

-   Genuine Volvo Penta complete heat exchanger
-   25 kg
-   Heavy-duty marine or stationary cooling construction
-   Separate assembly from heat exchangers 21202086 and 21202089
-   Match end covers, connection positions and engine product number
-   Engine type: Volvo Penta heavy-duty diesel with closed-circuit heat-exchanger cooling

## 🔌 Function

Transfers engine heat across separated coolant and cooling-water circuits without mixing the fluids.

## ⚠️ Common Signs of Failure

-   Engine temperature rising at sustained load
-   Coolant or seawater cross-leakage
-   Restricted tubes caused by scale, debris or marine growth
-   External corrosion, pitting or leakage at end covers
-   Reduced heat transfer despite normal pump operation

## 🛠️ Service Notes

-   Heat exchangers 21202086 and 21202089 are separate assemblies at 21.183 kg and 45.358 kg, so check the product number rather than assuming interchange

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21202086 - D9A2A heat-exchanger variant; not interchangeable without product verification
-   21202089 - D9A2A 575 hp heat-exchanger variant; not interchangeable

### Aftermarket / Verified Equivalents

-   VRCoolertech: 21921055

## 📦 Condition

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

## Details

- **Price:** 16365.84 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 16365.84 AUD | In stock |

## Images

- 21202084 Heat Exchanger | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21202084-heat-exchanger-genuine-volvo-penta)
> Updated: 2026-08-22