# 3855428 Gear Housing | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta gear housing from the Marine Propulsion group, weighing 22.566 kg and listed for 2 applications on SX series drives. It supersedes part number 3854385.

## ⚙️ Key Features

-   22.566 kg
-   SX series drives
-   2 applications
-   Supersedes 3854385

## 🔌 Function

Houses the drive's gears, shafts and bearings, keeping them aligned and holding the gear oil in.

## ⚠️ Common Signs of Failure

-   Water contamination turning the gear oil grey or milky
-   Whine or growl from the drive that changes with load
-   Metallic paste on the drain plug magnet
-   Casting cracked or distorted after a grounding
-   Bearing bores worn oval or spun

## 🛠️ Service Notes

-   This is at 22.566 kg, against 17.999 kg for 3855363 and 15.286 kg for 3855629, so confirm the drive before ordering
-   Renew seals, bearings and gaskets while the housing is stripped
-   Over 22 kg, so this is a freight item

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3855428 → Supersedes 3854385

### OEM / Related Numbers

-   3854385 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 4542.0 AUD
- **Vendor:** Volvo Penta
- **Type:** Drives & Propulsion
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4542.00 AUD | In stock |

## Images

- 3855428 Gear Housing | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3855428-gear-housing-genuine-volvo-penta)
> Updated: 2026-09-06