21228429 Cylinder Head Gasket | Genuine Volvo Penta Part

🔧 Product Description

A multi-layer cylinder-head gasket used on selected Volvo Penta D2 marine diesel engines. It seals combustion pressure, engine coolant and lubricating-oil passages between the cylinder block and cylinder head.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-55
• Volvo Penta D2-55B
• Volvo Penta D2-55C
• Volvo Penta D2-55D
• Volvo Penta D2-55E
• Volvo Penta D2-55F
• Volvo Penta D2-50F
• Volvo Penta D2-75
• Volvo Penta D2-75B
• Volvo Penta D2-75C

• Engine Family: D
• HP Range: 50-75 HP

⚙️ Key Features

• Seals combustion, coolant and oil passages
• Correct bore spacing and compressed thickness
• Replace whenever the cylinder head is removed
• Direct replacement where part number 21228429 is specified
• Engine type: Four-cylinder naturally aspirated or turbocharged marine diesel, depending on model

🔌 Function

Creates a gas- and fluid-tight seal between the cylinder head and engine block.

⚠️ Common Signs of Failure

• Coolant loss without an external leak
• Combustion gas in the cooling system
• White exhaust smoke
• Coolant contamination in the oil

🛠️ Service Notes

• Establish why the old gasket failed before fitting a new one — overheating, a distorted or cracked head, a corroded block face or a stretched fastener will destroy the new gasket in the same way
• Have the head and block faces checked for flatness and for the surface finish the gasket requires; clean them with plastic or hardwood scrapers and solvent rather than power tools or abrasives, which round the edges of the joint and drop grit into the bores
• Make sure both faces, the bolt holes and the coolant passages are clean and dry, and wipe or blow debris out of the cylinders before the head goes on
• Fit the gasket dry and the right way round, following any orientation marking on it, and use no sealant or jointing compound unless the workshop manual for your engine specifically calls for it
• Use new head bolts wherever the manual requires them — many are designed to stretch and cannot be reused — and tighten in the sequence, stages and angles the manual gives, then carry out any re-tension or valve clearance check it specifies

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21228429 → Supersedes 3809337 → Supersedes 3583540

OEM / Related Numbers

• 3809337 earlier number superseded by this part
• 3583694 earlier number superseded by this part
• 3583540 earlier number superseded by this part
• 3589322 - decarbonising gasket kit
• 3809611 - cylinder head
• 24513666 - cylinder-head screw kit
• 21189426 - service kit for selected D2 engines

📦 Condition

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