# 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

## Details

- **Price:** 1045.74 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1045.74 AUD | In stock |

## Images

- 21643344 Flywheel | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21643344-flywheel-genuine-volvo-penta)
> Updated: 2026-08-03