# 21550240 Lower Gear | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta DPR-A Complete Lower Gear, 1.4 Ratio - Part Number: 21550240

  

A complete lower-gear assembly for Volvo Penta DPR-A propulsion drives using the catalogue-designated 1.4 reduction ratio.

  

⚙️ Key Features

  

• Complete lower-gear unit

• Catalogue ratio designation: 1.4

• Matched gears, shafts and bearings

• Counter-rotating propeller-drive construction

• Requires drive-specific setup and oil specification

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• Current OEM reference: 21550240

  

OEM / Related Numbers:

  

• 21550240

• Ratio identification: 1.4

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

• DPR-A marine propulsion drive

• Drive identification plate and serial number must match the 1.4-ratio assembly

  

🔌 Function

  

The lower gear changes the direction of drive and transfers power from the vertical shaft to the counter-rotating propeller shafts.

  

Common signs of failure or damage:

  

• Abnormal gear noise

• Metal debris in the lubricant

• Water-contaminated drive oil

• Propeller-shaft play

• Drive overheating

• Loss of propulsion

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 15651.26 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 15651.26 AUD | In stock |

## Images

- 21550240 Lower Gear | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21550240-lower-gear-genuine-volvo-penta)
> Updated: 2026-08-03