# 20860834 Gear | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta toothed drive gear for the designated engine gear-train position. It is manufactured with the exact tooth count, helix or spur geometry, face width and hub offset required to mesh correctly with the adjoining gears and keep the driven component in phase.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD560VE
-   Volvo Penta TAD561VE
-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE
-   Volvo Penta TAD750VE
-   Volvo Penta TAD760VE
-   Volvo Penta TAD765VE
-   Volvo Penta TAD764VE
-   Volvo Penta TAD763VE
-   Volvo Penta TAD762VE
-   Volvo Penta TAD761VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Genuine Volvo Penta Precision Toothed Drive Gear - part number 20860834
-   OEM tooth count and tooth geometry
-   Correct hub offset and face width for the assigned gear-train position
-   Machined mounting interface controls runout and alignment
-   Hardened tooth surfaces support continuous lubricated duty
-   Must be installed with the specified timing marks and backlash
-   Not interchangeable with a similar-diameter gear unless the part number is identical
-   Engine type: D5/D7-series Volvo Penta industrial diesel applications

## 🔌 Function

The gear transmits torque through the engine's lubricated gear train to its assigned driven component. Accurate tooth geometry and location ensure smooth load transfer, correct rotational timing and controlled gear backlash.

## ⚠️ Common Signs of Failure

-   Whine, growl or cyclic gear noise
-   Chipped or pitted teeth
-   Excessive backlash or uneven tooth contact
-   Driven component timing or speed is incorrect
-   Fretting or looseness at the shaft/hub interface

## 🛠️ Service Notes

-   Inspect the mating gear as well as the one being renewed; a chipped or worn tooth on the partner will quickly ruin a new gear, so change them as a pair where the wear is shared
-   Check the shaft, bush or bearing the gear runs on for wear and scoring before assembly and renew anything that is not to size
-   Fit the gear square and press it home rather than driving it with hammer blows, which spread the bore and mark the teeth
-   Oil the teeth and bearing surfaces on assembly so the gear is not run up dry on first start
-   Where the workshop manual for your engine gives backlash, end float or timing settings for the gear, set and check them to those figures rather than by feel

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   VOE20860834

## 📦 Condition

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

## Details

- **Price:** 1031.8 AUD
- **Vendor:** Volvo Penta
- **Type:** Power Transmission
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1031.80 AUD | In stock |

## Images

- 20860834 Gear | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20860834-gear-genuine-volvo-penta)
> Updated: 2026-10-09