# 21120512 Gear Housing | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta DPS-A OXi Gear Housing - Part Number: 21120512

  

Genuine gear housing for Volvo Penta DPS-A OXi sterndrives. The housing provides the machined structure for the gear set, propeller shaft, bearings, seals, drain components and corrosion-protection anodes.

  

⚙️ Key Features

  

• Exact DPS-A OXi drive application

• Precision-machined shaft and bearing bores

• Correct internal oil passages and sealing surfaces

• Supports the factory anode arrangement

• Approximately 22.226 kg

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21120512 - Current OEM part number

  

OEM / Related Numbers:

  

• 21120512

  

Aftermarket / Verified Equivalents:

  

• No aftermarket gear housing

  

Associated Service Parts:

  

• 21141700 - Bearing carrier

• 3887005 - Magnetic drain plug

• 3888822 - Gasket kit

• 3888814 - Zinc anode

• 3888813 - Aluminium anode

• 3888815 - Magnesium anode

  

🚤 Compatibility

  

Confirmed drive family:

  

• DPS-A OXi

  

• Match drive product number, gear ratio, shaft configuration and serial number

• Rebuilding requires the correct bearing, seal, shim and anode package for the drive

  

🔌 Function

  

The housing aligns the lower-drive gears, shafts and bearings, retains gear lubricant and supports the external corrosion-protection components.

  

Common signs of failure:

  

• Cracking after impact or grounding

• Water entering the drive oil

• Corroded sealing surfaces

• Distorted bearing bores

• Persistent oil leakage

• Abnormal gear noise

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 4982.96 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4982.96 AUD | In stock |

## Images

- 21120512 Gear Housing | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21120512-gear-housing-genuine-volvo-penta)
> Updated: 2026-08-02