# 20824642 Level Sensor | Genuine Volvo Penta Part

## 🔧 Product Description

Application-specific Coolant Level Sensor used in the coolant expansion-tank level monitoring assembly on the listed Volvo Penta engines. Detects coolant level in the expansion tank and supplies the warning or control signal to the monitoring system.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD520VE
-   Volvo Penta TAD520GE
-   Volvo Penta TAD530GE MECH
-   Volvo Penta TAD530GE EDC4
-   Volvo Penta TAD531GE MECH
-   Volvo Penta TAD531GE EDC4

-   **Engine Family:** TD, TAD
-   **HP Range:** Approximately 150-180 HP
-   **Year Range:** Approximately 1999 - 2007
-   **Serial Range:** SN5301098272-

## ⚙️ Key Features

-   Genuine Volvo Penta Coolant Level Sensor
-   Designed for the coolant expansion-tank level monitoring assembly
-   Detects coolant level in the expansion tank and supplies the warning or control signal to the monitoring system
-   Catalogued for TD520VE; TAD520VE
-   Engine type: 4.8-litre four-cylinder turbocharged industrial diesel

## 🔌 Function

Detects coolant level in the expansion tank and supplies the warning or control signal to the monitoring system.

## ⚠️ Common Signs of Failure

-   Intermittent open circuit, high resistance or unstable signal
-   Corroded, overheated, loose or pushed-back terminals
-   Chafed insulation, broken conductors or damaged connector locks
-   Warning lamp, charging fault or sensor diagnostic code

## 🛠️ Service Notes

-   Disconnect electrical power before service and inspect every mating terminal for tension, corrosion and heat damage.
-   Route and secure the harness exactly as specified, then verify continuity, charging voltage or sensor operation.

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20824642 → Supersedes 20531429

### OEM / Related Numbers

-   20531429 earlier number superseded by this part
-   2053142 - expansion tank
-   20459953 - O-ring
-   20459950 - coolant fitting
-   20450736 - thermostat
-   20450735 - coolant outlet pipe

### Other-Brand OEM Numbers

-   VOE20824642 - Volvo Construction Equipment prefixed number format

## 📦 Condition

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

## Details

- **Price:** 372.28 AUD
- **Vendor:** Volvo Penta
- **Type:** Sensors & Senders
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 372.28 AUD | In stock |

## Images

- 20824642 Level Sensor | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20824642-level-sensor-genuine-volvo-penta)
> Updated: 2026-10-11