21168271 Engine Heater | Genuine Volvo Penta Part

🔧 Product Description

A 750-watt mains coolant heater used across a broad range of Volvo Penta industrial and generator engines. Installed in the cooling circuit, it warms coolant and the cylinder block before starting and supersedes several earlier heater references.

🚤 Compatibility

• Engine Family: TID, TD

Full model list at the end of this description.

⚙️ Key Features

• Supply voltage: 220–240 V AC
• Heating output: 750 W
• Coolant-circuit preheater
• Supersedes 865098, 21168270, 3830819 and 3830820 where specified
• Uses model-specific hoses, elbow nipple and adapter
• Engine type: Volvo Penta industrial/generator diesel coolant preheating system

🔌 Function

Preheats engine coolant and the cylinder block to improve cold starting and reduce initial engine wear.

⚠️ Common Signs of Failure

• Heater remains cold when energised
• Earth-leakage protection trips
• Coolant leakage at heater or pipe seals
• Damaged cable or overheated connector
• Poor preheating caused by blocked coolant circulation

🛠️ 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 Supersession Chain

• 21168271 → Supersedes 21168270 → Supersedes 3830819 → Supersedes 3830820 → Supersedes 865098 → Supersedes 865078 → Supersedes 822352

OEM / Related Numbers

• 3830819 earlier number superseded by this part
• 3830820 earlier number superseded by this part
• 865098 earlier number superseded by this part
• 21168270 earlier number superseded by this part
• 865078 earlier number superseded by this part
• 822352 earlier number superseded by this part
• 220–240 V
• 750 W related reference
• 952970 – hose
• 943473 – hose clamp
• 942590 – elbow nipple
• 821335 – adapter

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TD61A, TD61ACE, TD61AG, TD61AGP, TD61AP, TD61APB, TD61AW
• Volvo Penta TD71A, TD71ACE, TD71AG, TD71AGP, TD71AP, TD71APB, TD71AW
• Volvo Penta TID71A, TID71AG, TID71AGP, TID71AP, TID71APB
• Volvo Penta TID61AG, TID61AGP