420589 Expansion Plug | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta expansion plug, 33 mm in diameter, weighing 0.0045 kg and listed for 25 applications across the TWD, TID, TD and TAD series engines.

🚤 Compatibility

• Engine Family: TWD, TID, TD, TAD

Full model list at the end of this description.

⚙️ Key Features

• 33 mm diameter
• 0.0045 kg
• 25 applications across the TWD, TID, TD and TAD series
• 33mm (Volvo assembly listing)

🔌 Function

Closes a cored passage in the casting, expanding into the bore to seal it.

⚠️ Common Signs of Failure

• Coolant weeping or crusting from a plug in the block face
• Plug bowed outwards or pushed proud of its bore
• Plug corroded, thin or perforated
• Rust staining running down the casting below the plug

🛠️ Service Notes

• Order on the 33 mm diameter — expansion plugs come in a graded range and the bore size is the only thing that matters
• Clean the bore back to sound metal and set the plug to the depth the manual specifies

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TD61A, TD61ACE, TD61AG, TD61AP, TD61AW
• Volvo Penta TWD610G, TWD610P, TWD610PB, TWD610V
• Volvo Penta TD630ME, TD630VE
• Volvo Penta TWD630ME, TWD630VE
• Volvo Penta TWD740GE, TWD740VE
• Volvo Penta TAD740GE
• Volvo Penta TAD741GE
• Volvo Penta TD610G
• Volvo Penta TD640VE
• Volvo Penta TD71A
• Volvo Penta TD730VE
• Volvo Penta TID61AG
• Volvo Penta TID71A
• Volvo Penta TWD710V
• Volvo Penta TWD731VE