21643344 Flywheel | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Marine Diesel Flywheel - Part Number: 21643344

Heavy engine flywheel used in a serial-specific Volvo Penta marine diesel installation. It smooths crankshaft speed, carries the starter ring gear and provides the coupling or transmission mounting face.

⚙️ Key Features

• Genuine Volvo Penta balanced flywheel

• Precision crankshaft mounting surface

• Carries the matching starter ring gear

• Provides the driven coupling interface

• Housing- and serial-specific

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21643344 (current OEM service number)

OEM / Related Numbers:

• VOE21643344

• VOL-21643344

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D4/D6 marine diesel flywheel systems using flywheel 21643344

Typically suits:

• Engine models / systems:

• Serial-specific D4 or D6 marine propulsion installation

• Engine Type: Common-rail turbocharged marine diesel

• Fitment Note: Confirm ring-gear tooth count, flywheel housing, coupling depth and engine serial number

🔌 Function

Stores rotational energy, supports starter engagement and transfers engine torque into the transmission or coupling.

Common signs of failure:

• Damaged ring-gear teeth

• Cracks or heat checking

• Excessive run-out or vibration

• Fretting around mounting bolts

• Damaged coupling face

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging