22073580 Cylinder Block | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D9A2L Bare Cylinder Block, part number 22073580. A genuine bare cylinder-block casting used on Volvo Penta D9A2L marine-commercial engines. The rotating assembly, cylinder liners, pistons, crankshaft, camshaft and cylinder head are separate unless expressly supplied with the individual item.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1180-83VE
• Volvo Penta D9A2L MH
• Volvo Penta D9A2M MP

• Engine Family: TAD, D
• HP Range: Approximately 425-575 HP
• Year Range: Approximately 2005 - 2012

⚙️ Key Features

• Precision-machined structural and running surfaces
• Factory geometry for the specified bearing, timing or combustion assembly
• Designed for continuous high-load diesel-engine operation
• Requires correct lubrication, torque and assembly clearances
• Matched to the exact engine generation and serial range
• Engine type: 9.4L inline six-cylinder turbocharged marine diesel

🔌 Function

Supports or transfers the engine's rotating and structural loads while maintaining the specified timing, bearing alignment or cylinder geometry.

⚠️ Common Signs of Failure

• Abnormal gear noise, vibration or loss of timing
• Excessive backlash, bearing movement or bore wear
• Oil, coolant or compression leakage
• Severe engine damage if the component fails in service

🛠️ 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

• 22073580 → Supersedes 21236687 → Supersedes 21170630 → Supersedes 24426731

OEM / Related Numbers

• 21428017 earlier number superseded by this part
• 21236687 earlier number superseded by this part
• 21170630 earlier number superseded by this part
• 24426731 earlier number superseded by this part
• 21345129 - flange screw
• 20485996 - locating pins
• 950588 - locating pins
• 984793 - plugs
• 960629 - plugs
• 479956 - plugs
• 20845995 - plugs
• 960632 - plugs
• 960631 - plugs
• 22316718 - plugs
• 8131145 - guide sleeve
• 21971224 - frame reinforcement
• 21447015 - cover
• 20584639 - sealing strip
• 3818686 - cover
• 975675 - O-ring
• 1547252 - sealing rings
• 21940610 - sealing rings
• 20718731 - yoke
• 11994 - gaskets
• 11996 - gaskets
• 11998 - gaskets

📦 Condition

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