# 21912255 Flywheel Housing | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Flywheel Housing - TAD550GE - Part Number: 21912255

  

Machined flywheel housing for the TAD550GE engine. It encloses the flywheel, aligns the starter/speed-monitor components and provides the precision mounting interface to the generator or driven equipment.

  

⚙️ Key Features

  

• Precision engine-to-driven-unit alignment

• Rigid cast housing

• Mounting provisions for starter/sensors/covers

• Protects rotating flywheel components

• Installation and SAE configuration controlled

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21912255 (current listed OEM reference)

  

OEM / Related Numbers:

  

• 21912255

• 20547288 - cover plate

• 994442 - flange screw

• 20459989 - cover

• 21912303 - speed sensor / speed monitor

• 22938146 - O-ring

• 20450694 - hex socket screw

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• TAD550GE flywheel and driven-equipment connection

  

Typically suits:

  

• Engine / drive models:

  

• TAD550GE

  

• HP / Rating: Engine or drive rating controlled by the complete product number

  

• Engine / System Type: Inline four-cylinder generator diesel flywheel housing

  

• Year Range: Production configuration controlled; verify by product and serial number

  

• Serial / Specification Control: Confirm SAE/housing configuration, speed-sensor provision and complete engine serial number.

  

🔌 Function

  

Maintains concentric alignment between the crankshaft/flywheel and the attached generator or transmission while enclosing rotating components.

  

Common signs of failure or wear:

  

• Cracked housing or mounting flange

• Oil leakage at rear engine joint

• Starter or speed-sensor misalignment

• Fretting at driven-equipment interface

• Excessive runout caused by damaged locating bore

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 3539.83 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3539.83 AUD | In stock |

## Images

- 21912255 Flywheel Housing | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21912255-flywheel-housing-genuine-volvo-penta)
> Updated: 2026-08-03