22288340 Engine Heater | Genuine Volvo Penta Part

🔧 Product Description

Electric engine coolant heater rated at 230 volts and 600 watts for D5A-B TA and TAD520GE installations. It is used with the specified O-ring, cable set, adapter and relay hardware.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• 230V mains supply
• 600W heating output
• Confirmed D5A-B TA and TAD520GE fitment
• Coolant immersion/preheating function
• Complete related cable and relay references
• Engine type: 4-cylinder turbocharged industrial/generator diesel

🔌 Function

Preheats engine coolant before starting to improve cold-start reliability and reduce warm-up wear.

⚠️ Common Signs of Failure

• No coolant warming
• Open-circuit heater element
• Earth-leakage or breaker trip
• Coolant leakage at heater seal
• Scale or overheating

🛠️ 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

• 22288340 → Supersedes 20573949 → Supersedes 881670

OEM / Related Numbers

• 20573949 earlier number superseded by this part
• 881670 earlier number superseded by this part
• 20405599 (O-ring)
• 20796993 (cable sets)
• 20796994 (cable sets)
• 20998750 (adapter)
• 947628 (gaskets)
• 969011 (gaskets)
• 20998739 (relay)
• 20998736 (cable)

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAD520GE, TAD520VE
• Volvo Penta TAD530GE MECH, TAD530GE EDC4
• Volvo Penta TAD531GE MECH, TAD531GE EDC4
• Volvo Penta TAD720GE, TAD720VE
• Volvo Penta TAD721GE, TAD721VE
• Volvo Penta TAD722GE, TAD722VE
• Volvo Penta TAD730GE MECH, TAD730GE EDC4
• Volvo Penta TAD731GE MECH, TAD731GE EDC4
• Volvo Penta TD520GE, TD520VE
• Volvo Penta TD720GE, TD720VE PP
• Volvo Penta TAD420VE
• Volvo Penta TAD532GE EDC4
• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4
• Volvo Penta TAD734GE
• Volvo Penta TAD750GE
• Volvo Penta TAD751GE
• Volvo Penta TAD752GE
• Volvo Penta TAD753GE
• Volvo Penta TD420VE