# 21729984 Power Take-Off | Genuine Volvo Penta Part

## 🔧 Product Description

A complete engine-mounted power take-off assembly used to drive auxiliary hydraulic or mechanical equipment from the engine gear train.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD840GE
-   Volvo Penta TAD552VE
-   Volvo Penta TAD853VE
-   Volvo Penta TAD880-84VE
-   Volvo Penta TAD580-83VE
-   Volvo Penta TAD570-72VE
-   Volvo Penta TAD570-71VE-B
-   Volvo Penta TAD550-51VE
-   Volvo Penta TAD540-42VE
-   Volvo Penta TAD840-43VE
-   Volvo Penta TAD850-52VE
-   Volvo Penta TAD870-73VE
-   Volvo Penta TAD840GE-B
-   Volvo Penta TADH880-84VE

-   **Engine Family:** TAD, TADH
-   **HP Range:** Approximately 160-250 HP
-   **Year Range:** Approximately 2010 - 2021

## ⚙️ Key Features

-   Complete engine-mounted power take-off assembly
-   15.124 kg
-   Listed for 14 applications on TAD and TADH engines
-   Drives auxiliary hydraulic or mechanical equipment from the engine gear train

## 🔌 Function

Transfers engine torque to an auxiliary pump or driven machine through the PTO shaft and bearing assembly.

## ⚠️ Common Signs of Failure

-   Whine, growl or rumble from the PTO that follows engine speed
-   Oil weeping from the PTO shaft seal or its housing joint
-   Play or wobble felt at the output shaft
-   Bearings found rough or the drive gear teeth pitted on strip-down
-   Driven equipment losing drive or slipping under load

## 🛠️ Service Notes

-   Renew the housing gasket and shaft seal when the assembly is refitted
-   Check the driven equipment's alignment and its own coupling before refitting - misalignment is what kills PTO bearings

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   914478 - snap ring
-   948982 - O-ring
-   21735450 - bearing housing
-   22007049 - plane gasket
-   21569138 - cover
-   984735 - flange screw
-   990942 - flange nut
-   22364276 - later related PTO assembly

## 📦 Condition

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

## Details

- **Price:** 6521.94 AUD
- **Vendor:** Volvo Penta
- **Type:** Power Take-Off
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6521.94 AUD | In stock |

## Images

- 21729984 Power Take-Off | Genuine Volvo Penta Part
- 21729984 Power Take-Off | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21729984-power-take-off-genuine-volvo-penta)
> Updated: 2026-09-06