# 21934457 Switch | Genuine Volvo Penta Part

## 🔧 Product Description

Electrical or electro-mechanical control component calibrated for the original Volvo Penta engine or vessel system. Correct voltage, connector layout and software or operating range are essential.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta HPCU-A
-   Volvo Penta TB66-150-A

-   **Engine Family:** HPCU, TB

## ⚙️ Key Features

-   Factory electrical specification
-   Original connector and mounting geometry
-   Designed for the assigned control-system generation
-   Marine/industrial vibration resistance
-   System voltage and serial application must match

## 🔌 Function

Monitors or controls the assigned electrical, hydraulic, cooling or engine-management function.

## ⚠️ Common Signs of Failure

-   No response or intermittent operation
-   Incorrect signal or warning
-   Overheating or burnt terminals
-   Corrosion or water intrusion

## 🛠️ Service Notes

-   Isolate the batteries before disconnecting anything, and label the leads as they come off so they go back on the correct terminals
-   Check the replacement matches the original for contact rating and action; a switch that cannot carry the load will burn its contacts
-   Clean the terminals, make the connections tight and dry, and support the loom so it is not left hanging on the switch body
-   Refit the seal, boot or gland that came with the switch — water getting in behind a switch is the usual reason they fail afloat
-   Work the switch through its full travel and confirm the circuit behaves correctly, including any interlock or alarm function, before the engine goes back into service

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   VOE21934457

## 📦 Condition

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

## Details

- **Price:** 1017.85 AUD
- **Vendor:** Volvo Penta
- **Type:** Sensors & Senders
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1017.85 AUD | In stock |

## Images

- 21934457 Switch | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21934457-switch-genuine-volvo-penta)
> Updated: 2026-10-21