# 23493468 Lower Gear | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta lower gear with a 1.59:1 ratio, weighing 92.99 kg and listed for nine applications across D series engines and DPH drives. It supersedes 22079936. The ratio is critical, and at over 90 kg the lift needs planning.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D6-300A-G
-   Volvo Penta D6-340A-G
-   Volvo Penta D6-380A-G
-   Volvo Penta DPH-E
-   Volvo Penta D6-400A-G
-   Volvo Penta D4-150A-G
-   Volvo Penta D4-230A-G
-   Volvo Penta D4-270A-G
-   Volvo Penta D4-300A-G

-   **Engine Family:** D, DPH
-   **HP Range:** 150-400 HP

## ⚙️ Key Features

-   Lower gear with a 1.59:1 ratio
-   92.99 kg
-   Supersedes 22079936
-   Listed for nine applications across D series engines and DPH drives
-   The heaviest of the three lower gears
-   Ratio 1.59:1 (Volvo assembly listing)

## 🔌 Function

Forms the bottom section of the drive, taking the vertical shaft's rotation through the 1.59:1 gear set and out to the propeller shaft.

## ⚠️ Common Signs of Failure

-   Growling or whining from the bottom of the leg that tracks boat speed
-   Vibration through the hull under load
-   Gear oil milky, or water found in the drained oil
-   Metal glitter on the magnetic drain plug
-   Pitted or chipped gear teeth and rough bearings on strip-down

## 🛠️ Service Notes

-   Confirm the ratio before ordering - 23493469 is the 1.69:1 lower gear and 23493470 the 1.85:1, and the three cannot be told apart by weight in any useful order
-   Renew the propeller shaft seals and the gear oil on reassembly and pressure test before launching
-   At over 90 kg the lift needs planning and proper support

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   23493468 → Supersedes 22079936 → Supersedes 21433428

### OEM / Related Numbers

-   22079936 earlier number superseded by this part
-   21433428 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 13141.48 AUD
- **Vendor:** Volvo Penta
- **Type:** Drives & Propulsion
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13141.48 AUD | In stock |

## Images

- 23493468 Lower Gear | Genuine Volvo Penta Part
- 23493468 Lower Gear | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23493468-lower-gear-genuine-volvo-penta)
> Updated: 2026-09-22