# 3830008 Starter Pinion | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta starter pinion for the ST400CO1R77 starter, from the Starting System group, weighing 0.14 kg and listed for a single TAMD series application.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAMD74A

-   **Engine Family:** TAMD

## ⚙️ Key Features

-   For the ST400CO1R77 starter
-   0.14 kg
-   Single TAMD series application
-   Lightest of the three starter pinions listed here

## 🔌 Function

Meshes with the flywheel ring gear on cranking to pass starter torque into the engine, then releases once the engine runs.

## ⚠️ Common Signs of Failure

-   Starter spinning without cranking the engine
-   Grinding as the pinion tries to mesh
-   Chipped, hooked or pointed teeth on inspection
-   Pinion sticking out or not fully retracting
-   Fresh damage appearing on the ring gear teeth

## 🛠️ Service Notes

-   The ST400CO1R77 designation is the ordering detail — pinions 3830007 at 0.277 kg and 3830009 at 0.197 kg suit other starters, so check the starter's own marking before ordering
-   Inspect the ring gear whenever a pinion has failed
-   Renew the drive seal and return spring while the starter is apart

## 📦 Condition

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

## Details

- **Price:** 1216.55 AUD
- **Vendor:** Volvo Penta
- **Type:** Starters & Starting
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1216.55 AUD | In stock |

## Images

- 3830008 Starter Pinion | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3830008-starter-pinion-genuine-volvo-penta)
> Updated: 2026-09-21