# 20796351 Tank | Genuine Volvo Penta Part

## 🔧 Product Description

Application-specific coolant expansion tank used in the radiator, expansion-tank and complete cooling package on the listed Volvo Penta engines. Provides coolant expansion volume, deaeration and a visible fill/level point for the genset cooling package.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD620VE
-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE

-   **Engine Family:** TAD
-   **HP Range:** Approximately 150-300 HP
-   **Year Range:** Approximately 1999 - 2013
-   **Serial Range:** SN01099346-

## ⚙️ Key Features

-   Genuine Volvo Penta coolant expansion tank
-   Direct service replacement for part number 20796351
-   Designed for the radiator, expansion-tank and complete cooling package
-   Provides coolant expansion volume, deaeration and a visible fill/level point for the genset cooling package
-   Engine type: Four- and six-cylinder turbocharged genset diesel

## 🔌 Function

Provides coolant expansion volume, deaeration and a visible fill/level point for the genset cooling package.

## ⚠️ Common Signs of Failure

-   Coolant level dropping with dried residue running down the outside of the tank
-   Sweet coolant smell and crusted deposits around the seams or filler neck
-   Hairline cracks or crazing in the plastic, most often along a moulding seam
-   Overheating or a high coolant-temperature alarm as air is drawn into the system
-   Tank body found swollen or distorted once the pressure cap is released

## 🛠️ Service Notes

-   Inspect all sealing faces, dowels and threaded holes before assembly.
-   Renew the associated gaskets and seals and follow the specified tightening sequence.

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20796351 → Supersedes 20886207 → Supersedes 20459194 → Supersedes 20459945

### OEM / Related Numbers

-   20886207 earlier number superseded by this part
-   20459194 earlier number superseded by this part
-   20459945 earlier number superseded by this part
-   20412366 - early radiator
-   20797530 - later radiator
-   20796115 - complete cooling package
-   20412281 - radiator cap
-   20412266 - plugs
-   969011 - sealing gaskets
-   20551749 - washer
-   20405749 - vibration damper
-   20405667 - brackets
-   20412287 - brackets
-   20412310 - support bracket
-   20412349 - base plate
-   20405807 - plate

### Other-Brand OEM Numbers

-   VOE20796351 - Volvo Construction Equipment prefixed number format

## 📦 Condition

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

## Details

- **Price:** 323.65 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 323.65 AUD | In stock |

## Images

- 20796351 Tank | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20796351-tank-genuine-volvo-penta)
> Updated: 2026-08-22