22347425 Plug | Genuine Volvo Penta Part

🔧 Product Description

A genuine plug used in the radiator and charge-air cooler connection assembly of Volvo Penta TAD1640-TAD1642GE-B and TWD16 engines. It closes the specified service or manufacturing port and seals with O-ring 22347426.

🚤 Compatibility

• Engine Family: TAD, D, TWD, TWG

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta cooling-system plug
• Catalogued with TAD1640-TAD1642GE-B radiator packages
• Also used in documented TWD16 cooling assemblies
• Designed to seal with O-ring 22347426
• Correct insertion depth and retention geometry
• Plug only; O-ring is a separate service item

🔌 Function

Closes and seals the assigned coolant passage or service opening in the cooling package.

⚠️ Common Signs of Failure

• Coolant leakage around the plug
• Damaged or missing O-ring
• Cracked or distorted plug
• Plug movement or poor retention
• Corroded or damaged receiving bore

🛠️ 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

• 22347426 - Associated O-ring
• 22347421 - Associated plates
• 22347417 - Associated plates
• 22347412 - Associated sealing ring
• 22343834 - Associated cooler seal

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D16C-A MG, D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C-D MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta TAD1640-42GE-B, TAD1640GE, TAD1640VE-B, TAD1640-42VE-C
• Volvo Penta TAD1641VE-B, TAD1641GE, TAD1641VE
• Volvo Penta TAD1642VE-B, TAD1642GE, TAD1642VE
• Volvo Penta TAD1650VE-B/51VE, TAD1650GE, TAD1650VE
• Volvo Penta TAD1643VE-B, TAD1643VE
• Volvo Penta TAD1651GE
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD1670-72VE
• Volvo Penta TWD1643GE
• Volvo Penta TWD1644-45GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683GE-B
• Volvo Penta TWD1744GE
• Volvo Penta TWG1663GE