21323058 Cylinder Block | Genuine Volvo Penta Part

🔧 Product Description

A genuine cylinder block forming the main structural body of the assigned Volvo Penta engine.

⚙️ Key Features

• OEM casting and machined dimensions
• Supports crankshaft and cylinders
• Contains oil and coolant passages
• Intended for major engine rebuilding

🔌 Function

The block maintains precise alignment of the crankshaft, cylinders and cylinder head.

⚠️ Common Signs of Failure

• Cracks or porosity
• Damaged bores
• Distorted deck
• Oil or coolant leakage through the casting

🛠️ Service Notes

• Treat this as a machining and assembly job rather than a bolt-on part: measure the bores, main bearing bores and deck and work through the checks the workshop manual specifies for your engine before building
• Wash the block out thoroughly and blow every oil and coolant gallery through before assembly — a new block still carries machining debris and preservative
• Check that liners, dowels, core plugs and gallery plugs required by the build are present, correctly fitted and properly sealed
• Use new fasteners wherever the manual specifies them, and follow its tightening stages and sequence exactly for the main bearings and the cylinder head
• Confirm the block is the correct one for your engine's designation and serial number before any machining is started, and protect the finished faces from corrosion until assembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21323058 → Supersedes 21170681 → Supersedes 20463774 → Supersedes 20485668

OEM / Related Numbers

• 21170681 earlier number superseded by this part
• 20463774 earlier number superseded by this part
• 8148000 earlier number superseded by this part
• 20485668 earlier number superseded by this part

📦 Condition

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