# 3851309 Gear | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta gear for the 2.32:1 and 1.95:1 ratios, from the Marine Propulsion group, weighing 4.082 kg and listed for 6 applications on DP drives. It is the heaviest of the three ratio gears in this run.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta DP-S
-   Volvo Penta DP-S1
-   Volvo Penta DP-SM
-   Volvo Penta DP-SMTD
-   Volvo Penta DP-SMTD1
-   Volvo Penta DP-SMTD3

-   **Engine Family:** DP

## ⚙️ Key Features

-   For the 2.32:1 and 1.95:1 ratios
-   4.082 kg
-   6 applications on DP drives

## 🔌 Function

Meshes with its partner gear to pass the drive on at the ratio the teeth are cut for.

## ⚠️ Common Signs of Failure

-   Whine or howl from the drive that changes with load
-   Teeth pitted, chipped or with the hardened case worn through
-   Bright metal glitter in the drained oil
-   Backlash outside specification
-   Bearing damage found alongside worn teeth

## 🛠️ Service Notes

-   Order by ratio: 3851299 covers 1.68:1 and 3851304 covers 2.11:1 and 1.78:1
-   Confirm the ratio on the drive before ordering, and renew the mating gear and bearings together

## 📦 Condition

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

## Details

- **Price:** 4078.39 AUD
- **Vendor:** Volvo Penta
- **Type:** Transmission & Gearbox
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4078.39 AUD | In stock |

## Images

- 3851309 Gear | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3851309-gear-genuine-volvo-penta)
> Updated: 2026-10-08