# 20412169 Engine Heater | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta 230-volt, 1500-watt block-mounted engine heater for TAD940GE and TAD941GE engines. It preheats the engine coolant to improve cold starting and reduce warm-up wear.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD943VE
-   Volvo Penta TAD952VE
-   Volvo Penta TAD951VE
-   Volvo Penta TAD950VE
-   Volvo Penta TAD940GE
-   Volvo Penta TAD940VE
-   Volvo Penta TAD941VE
-   Volvo Penta TAD941GE
-   Volvo Penta TAD942VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   230 V mains-powered coolant heater
-   Rated output 1500 W
-   Confirmed on TAD940GE and TAD941GE
-   Used with cable 3589627 and 5 m extension cable 3986351
-   Requires the original retainer and locking clamps
-   Engine type: Volvo Penta 9-litre industrial diesel

## 🔌 Function

Heats engine coolant before starting to improve cold cranking, combustion and warm-up.

## ⚠️ Common Signs of Failure

-   No coolant warming when energised
-   Open-circuit heating element
-   Earth leakage or circuit-breaker tripping
-   Coolant leakage around the heater
-   Burnt or damaged power cable

## 🛠️ Service Notes

-   The cooling system must be filled and properly vented before the heater is switched on — energising the element in a dry or air-locked jacket will burn it out
-   Isolate the shore supply and let the engine cool before removing or fitting a heater, and drain enough coolant to work below the heater opening
-   Renew the sealing ring or gasket at the opening and tighten to the figure in the workshop manual for your engine
-   Inspect the element for scale and the housing for corrosion; a heavily scaled element runs hot and will fail again
-   Have the electrical connection made off correctly and protected, fed from a properly earthed and protected shore supply, and check the cable and connector for damage each season

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   3589627 - 1,500 mm heater cable
-   3986351 - 5 m extension cable
-   1079218 - retainer
-   8153710 - extension cable
-   20587131 - locking clamps
-   948211 - cable ties

## 📦 Condition

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

## Details

- **Price:** 321.74 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 321.74 AUD | In stock |

## Images

- 20412169 Engine Heater | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20412169-engine-heater-genuine-volvo-penta)
> Updated: 2026-10-10