# 4770431 Gear | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta gear from the Fuel System group, weighing 3.2 kg and listed for a single TAD series application. It is much heavier than the fuel system parts around it and belongs with the 4770 series group here, which also includes strainer 4770428, pin 4770525 and shaft 4770605.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD1170-72VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   3.2 kg
-   One TAD series application
-   Fuel System group
-   Listed with 4770428, 4770525 and 4770605 on the same application

## 🔌 Function

Transmits drive within the fuel system gear train, turning the pump or governor drive at the ratio the timing demands.

## ⚠️ Common Signs of Failure

-   Whine or growl from the pump drive that follows engine speed
-   Rough running or timing that will not hold its setting
-   Tooth flanks pitted, chipped or with a wear step
-   Excessive backlash when the gear is rocked by hand
-   Metallic debris in the fuel pump drive housing

## 🛠️ Service Notes

-   Injection timing must be reset after any work on the pump drive gears, so treat this as workshop work
-   Check the mating gear and shaft for matching wear rather than fitting one new gear against a worn one

## 📦 Condition

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

## Details

- **Price:** 1448.35 AUD
- **Vendor:** Volvo Penta
- **Type:** Fuel System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1448.35 AUD | In stock |

## Images

- 4770431 Gear | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/4770431-gear-genuine-volvo-penta)
> Updated: 2026-09-06