20412266 Plug | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta radiator plug used at four positions in the TD720GE radiator. Each plug closes a manufacturing or service opening and seals with gasket 969011.

🚤 Compatibility

• Engine Family: D, TD

Full model list at the end of this description.

⚙️ Key Features

• Radiator tank / core closure plug
• Four used in radiator 20412366 / replacement radiator 20797530
• Uses sealing gasket 969011
• Suitable for hot pressurised engine coolant
• Should be renewed if corroded or damaged during removal
• Engine type: Volvo Penta 7-litre industrial diesel
• Quantity varies by assembly, most commonly two

🔌 Function

Closes and seals four radiator tank or core openings to retain coolant pressure.

⚠️ Common Signs of Failure

• Coolant seepage around a plug
• Plug corrosion or movement
• Damaged plug threads
• Failed gasket
• Cooling system losing pressure

🛠️ Service Notes

• Clean the threads and the seating face before fitting, and make sure the opening itself is clear of old sealant, swarf and corrosion
• Renew the sealing washer or O-ring where one is fitted rather than reusing a flattened one, and only use thread sealant where the workshop manual for your engine calls for it
• Tighten to the figure given in the workshop manual for your engine — plugs in aluminium and other soft castings strip easily, and a plug pulled up hard to cure a leak usually distorts the seat and makes it worse
• Where the plug closes an oil, fuel or coolant passage, run the engine up to temperature afterwards and check the joint under pressure before signing the job off
• Keep removed plugs paired with the holes they came out of during a strip-down — plugs of very similar appearance often differ in thread, reach or sealing type

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20412366 - related radiator references
• 20797530 - related radiator references
• 20796115 - related cooling package
• 20412281 - radiator cap
• 969011 - sealing gaskets

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C1-B MH, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C6-A MP, D13C5-B MP, D13C8-B MP
• Volvo Penta TD720GE, TD720VE PP