# 821090 Gear | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta gear from the Engine group, weighing 1.23 kg and listed for 24 applications across the MD, TMD and TAMD series.

## 🚤 Compatibility

-   **Engine Family:** MD, TMD, TAMD

Full model list at the end of this description.

## ⚙️ Key Features

-   Engine group gear
-   1.23 kg
-   24 applications across the MD, TMD and TAMD series

## 🔌 Function

Transmits drive between shafts, its teeth setting the speed and direction of the driven component.

## ⚠️ Common Signs of Failure

-   Whine or growl that tracks engine speed
-   Teeth chipped, pitted or broken
-   Polished wear band along one tooth flank
-   Metallic debris in the oil
-   Excessive backlash when the gear is rocked

## 🛠️ Service Notes

-   Spacer 821091 carries the same 24 applications on the same three engine series and is the companion piece, so check whether it needs renewing at the same time
-   Inspect the meshing gear before fitting a new one, as worn teeth on one side soon damage the other

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAMD122A, TAMD122A/C, TAMD122AF, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
-   Volvo Penta MD100A, MD100B, MD100B-CC
-   Volvo Penta TAMD102A, TAMD102D
-   Volvo Penta TAMD120A, TAMD120B
-   Volvo Penta TMD100A, TMD100C
-   Volvo Penta TMD120A, TMD120B
-   Volvo Penta MD120A
-   Volvo Penta TAMD103A
-   Volvo Penta TAMD121D
-   Volvo Penta TMD102A
-   Volvo Penta TMD121C
-   Volvo Penta TMD122A

## Details

- **Price:** 1969.48 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1969.48 AUD | In stock |

## Images

- 821090 Gear | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/821090-gear-genuine-volvo-penta)
> Updated: 2026-09-06