# 23959555 Alternator | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta alternator weighing 7.829 kg, listed for five applications across TAD and D series engines. It supersedes 23309926; alternator 23959557 is within 62 grams of it but covers TADH engines instead, so check the fitment list.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD841-43GE
-   Volvo Penta TAD851-53GE
-   Volvo Penta D16C1-E MH
-   Volvo Penta D16C1-F MH
-   Volvo Penta TAD840GE-B

-   **Engine Family:** TAD, D

## ⚙️ Key Features

-   7.829 kg
-   Listed for five applications across TAD and D series engines
-   Supersedes part number 23309926
-   Alternator 23959557 is within 62 grams of this one but covers a different engine list

## 🔌 Function

Charges the batteries and carries the vessel's electrical load while the engine is running, regulating its output voltage as that load changes.

## ⚠️ Common Signs of Failure

-   Charge warning lamp on, or batteries flat overnight
-   Charge voltage low or wandering at the panel
-   Whine, growl or bearing rumble from the machine
-   Burning smell, with belt dust and glazing from a seizing pulley
-   Brushes, slip rings or diodes found worn or burnt on strip-down

## 🛠️ Service Notes

-   Check the belt, the charging cables and the earth connections before condemning the alternator
-   Alternator 23959557 is close in weight but covers TADH engines, so go by the fitment list rather than by size
-   Disconnect the batteries before removing the alternator's output cable

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   23959555 → Supersedes 23309926 → Supersedes 21922755

### OEM / Related Numbers

-   23309926 earlier number superseded by this part
-   21922755 earlier number superseded by this part

### Aftermarket / Verified Equivalents

-   AS-PL: A5408S
-   AS-PL: A5408
-   AS-PL: A5408PR

## 📦 Condition

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

## Details

- **Price:** 1810.88 AUD
- **Vendor:** Volvo Penta
- **Type:** Charging & Alternators
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1810.88 AUD | In stock |

## Images

- 23959555 Alternator | Genuine Volvo Penta Part
- 23959555 Alternator | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23959555-alternator-genuine-volvo-penta)
> Updated: 2026-10-08