# 872784 Aquamatic Drive | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta Aquamatic sterndrive unit for the 2.30:1 ratio, from the Marine Propulsion group, weighing 59.999 kg and listed for five applications across the TMD, AD, DP, TAMD and MD series. It is also available as an exchange part and supersedes 3803195, 853453 and 872372, numbers catalogued earlier as a reconditioned Aquamatic drive and an exchange DP-A2 drive. The other 2.30:1 drive in this run is 872863, which replaces a different pair of numbers and covers eight applications, so ratio alone will not tell the two apart - match the supersession chain and the engine.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TMD31B
-   Volvo Penta AD31B
-   Volvo Penta DP-A2
-   Volvo Penta TAMD31B
-   Volvo Penta MD31A

-   **Engine Family:** TMD, AD, DP, TAMD, MD

## ⚙️ Key Features

-   For the 2.30:1 ratio
-   59.999 kg
-   Available as an exchange part
-   Supersedes 3803195, 853453 and 872372
-   Five applications across TMD, AD, DP, TAMD and MD
-   Ratio 2.30:1 (Volvo assembly listing)
-   Also supersedes Volvo part number 854640

## 🔌 Function

Takes the drive through the transom and down to the propeller, providing the gearing, the steering pivot and the trim movement in one unit.

## ⚠️ Common Signs of Failure

-   Vibration or noise from the drive under way
-   Milky oil or an oil level that keeps dropping
-   Play at the propeller shaft or at the input coupling
-   Water in the bellows area or corrosion around the transom
-   Drive slow, noisy or reluctant to engage

## 🛠️ Service Notes

-   The other 2.30:1 drive here is 872863 - match the number your engine is recorded against, not just the ratio
-   Renew the bellows, seals and anodes while the drive is off the transom
-   An exchange unit is available against this number

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   872784 → Supersedes 3803195 → Supersedes 3803175 → Supersedes 3803153 → Supersedes 3803112 → Supersedes 3803095 → Supersedes 3803055

### OEM / Related Numbers

-   853453 earlier number superseded by this part
-   872372 earlier number superseded by this part
-   3803195 earlier number superseded by this part
-   3803175 earlier number superseded by this part
-   3803153 earlier number superseded by this part
-   3803112 earlier number superseded by this part
-   3803095 earlier number superseded by this part
-   3803055 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 21821.13 AUD
- **Vendor:** Volvo Penta
- **Type:** Drives & Propulsion
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 21821.13 AUD | In stock |

## Images

- 872784 Aquamatic Drive | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/872784-aquamatic-drive-genuine-volvo-penta)
> Updated: 2026-10-10