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