# 21912256 Flywheel Housing | Genuine Volvo Penta Part

## 🔧 Product Description

Alternative flywheel-housing configuration for selected TAD550GE installations. It retains the flywheel and aligns the engine with the driven unit while providing the required cover and speed-sensor mounting points.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD550GE
-   Volvo Penta TAD551GE
-   Volvo Penta TAD750GE
-   Volvo Penta TAD751GE

-   **Engine Family:** TAD

## ⚙️ 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

## 🔌 Function

Encloses the flywheel and preserves accurate crankshaft-to-driven-equipment alignment.

## ⚠️ Common Signs of Failure

-   Cracking around mounting pads
-   Misalignment or vibration
-   Damaged sensor/cover threads
-   Fretting at the generator or coupling interface

## 🛠️ Service Notes

-   Clean both faces back to bare metal and remove every trace of old gasket and sealant before offering the housing up; trapped debris on this joint causes both leaks and misalignment
-   Locate the housing on its dowels and pull it down evenly, working outwards from the centre, in the sequence and to the figures in the workshop manual for your engine
-   Seal the joints where the housing meets the block and the sump exactly as the manual specifies — those corners are a common source of oil weeps
-   Renew the crankshaft rear seal while the access is open rather than refitting an old one, and check its running surface at the same time
-   Confirm the housing bore and face run true to the crankshaft before hanging a gearbox or drive on it; a housing out of alignment will destroy couplings and bearings

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20547288 - cover plate
-   994442 - flange screw
-   20459989 - cover
-   21912303 - speed sensor / speed monitor
-   22938146 - O-ring
-   20450694 - hex socket screw

## 📦 Condition

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

## Details

- **Price:** 4592.54 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4592.54 AUD | In stock |

## Images

- 21912256 Flywheel Housing | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21912256-flywheel-housing-genuine-volvo-penta)
> Updated: 2026-10-11