# 22919645 Expansion Tank | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta expansion tank from the Cooling System group, weighing 2.715 kg and listed for two applications across KAD and KAMD series engines. It supersedes part number 860517 and accommodates coolant expansion.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta KAD42A
-   Volvo Penta KAMD42A

-   **Engine Family:** KAD, KAMD

## ⚙️ Key Features

-   Expansion tank from the Cooling System group
-   2.715 kg
-   Listed for two applications across KAD and KAMD series engines
-   Supersedes 860517

## 🔌 Function

Holds the coolant that expands as the engine warms and returns it as it cools, keeping the circuit full while its cap sets the system pressure.

## ⚠️ Common Signs of Failure

-   Coolant level dropping with no external leak found
-   Coolant pushed out of the overflow after shutdown
-   Overheating where the cap no longer holds pressure
-   Tank found cracked at a seam or around a stub
-   Cap seal perished, or the filler neck pitted and corroded

## 🛠️ Service Notes

-   Test or renew the pressure cap with the tank - a cap that will not hold pressure gives the same symptoms as a cracked tank
-   Check the hoses and stubs while the tank is off and flush the system if the old coolant is dirty

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   22919645 → Supersedes 860517

### OEM / Related Numbers

-   860517 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 663.34 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 663.34 AUD | In stock |

## Images

- 22919645 Expansion Tank | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/22919645-expansion-tank-genuine-volvo-penta)
> Updated: 2026-08-22