# 3860082 Alternator | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta alternator from the Alternator, Charging, Electric Motor and Electric Drives group, weighing 5.375 kg and listed for 40 applications. At over 5 kg it is one of the heavier bolt-on assemblies in this range.

## 🚤 Compatibility

Full model list at the end of this description.

## ⚙️ Key Features

-   5.375 kg
-   40 applications
-   Alternator, charging and electric drives group

## 🔌 Function

Converts engine power into electrical output, charging the batteries and supplying the boat's loads while the engine is running.

## ⚠️ Common Signs of Failure

-   Batteries flat or persistently under-charged
-   Charge warning light on, flickering or slow to go out
-   Squeal, growl or rumble from the alternator bearings
-   Burning smell, or the body running unusually hot
-   Charge output falling away as the engine warms up

## 🛠️ Service Notes

-   Check the belt, brackets and all charging cable connections before condemning the alternator - a corroded connection mimics a failed unit
-   Voltage regulator 3858879 is the separate regulator listed for DPX drives in this range
-   Isolate the battery before disconnecting the alternator, and confirm charge voltage at the battery after fitting

## 🔄 Supersession & Cross Reference

### Aftermarket / Verified Equivalents

-   Recmar: REC3860082

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta 7.4GiPEFS, 7.4GSiPEFS, 5.7GSiI-A, 5.7GSiPEFS, 5.7GXi-A, 5.7GXi-B, 5.7GXi-C, 5.7GXi-CF, 5.7GXiI-A, 5.7GXiI-B, 5.7GXiI-C, 5.7OSi-A, 5.7OSi-AF, 5.7OSXi-A, 5.7OSXi-AF, 5.7Gi-A, 5.7Gi-B, 5.7Gi-BF, 5.7GiI-A, 5.7GiI-B, 5.0GiPEFS, 5.0GXi-A, 5.0GXi-B, 5.0GXi-BF, 5.0OSi-B, 4.3GIPEFS, 4.3GXi-A, 4.3GXi-B, 4.3GXi-BF, 4.3OSi-BF, 4.3OSi-B, 3.0GSM-A, 3.0GSM-B, 3.0GSM-C, 3.0GSMEFS, 3.0GSP-A, 3.0GSP-B, 3.0GSP-C, 3.0GSPEFS, 8.2GSiPEFS

## Details

- **Price:** 855.59 AUD
- **Vendor:** Volvo Penta
- **Type:** Charging & Alternators
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 855.59 AUD | In stock |

## Images

- 3860082 Alternator | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3860082-alternator-genuine-volvo-penta)
> Updated: 2026-10-10