# 21429782 Alternator | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine 28-volt 80-amp alternator used as a special Volvo Penta charging option in warm-climate installations. The official installation notes require cable kit 21327509 and identify this alternator for the designated charging-system configuration.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D11C1-A MP
-   Volvo Penta D11C2-A MP
-   Volvo Penta D11B3-A MP
-   Volvo Penta D11B4-A MP
-   Volvo Penta D11B2-A MP
-   Volvo Penta D11B1-A MP

-   **Engine Family:** D

## ⚙️ Key Features

-   Nominal 24V system / 28V charging output
-   Rated output: 80A
-   Warm-climate charging-system option
-   Requires cable kit 21327509
-   Factory pulley and regulator configuration

## 📋 Kit Contents

-   28V 80A, Option for customers with overcharged batteries in varm climate, Also need to order cable kit 21327509

## 🔌 Function

The alternator converts engine rotation into regulated electrical current for battery charging and onboard electrical loads.

## ⚠️ Common Signs of Failure

-   Low or high charging voltage
-   Battery warning
-   Overcharged or undercharged batteries
-   Bearing or pulley noise
-   Intermittent output
-   Burnt terminals or overheated cable

## 🛠️ Service Notes

-   Isolate the batteries before you start, and never disconnect the alternator or battery cables with the engine running — that will destroy the diodes
-   Reconnect exactly as it came off, correct polarity, terminals clean and tight, and check the earth path through the mountings and engine is sound
-   Check the pulleys line up and the belt runs true; renew a glazed, cracked or oil-contaminated belt at the same time and tension it by the procedure in the manual for your engine
-   Support the alternator while you fit and tighten the mounting and adjusting bolts to the manual's figures, and never lever against the alternator body or end covers
-   After fitting, confirm the charge warning goes out and charging voltage is correct, and recheck belt tension after the first running period

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20850236 - Related Volvo OEM alternator reference

### OEM / Related Numbers

-   20850236 related reference
-   21327509 - Required cable kit for the documented special installation

### Other-Brand OEM Numbers

-   Bosch 0 124 555 036
-   MAHLE: MG 816
-   Lucas Electrical: LRA03413
-   Bosch: 1 986 A00 923
-   Prestolite Electric: 860804GB
-   Valeo: 202052
-   Valeo: 443512
-   Prestolite Electric: AVI147J3210HD

### Aftermarket / Verified Equivalents

-   Delco Remy: DRA0285
-   Iskra/Letrika: 11.209.623
-   Iskra/Letrika: AAN5412
-   Iskra/Letrika: IA9471
-   DT Spare Parts: 2.21255
-   HC-Cargo: F 032 116 310
-   AS-PL: A0603S
-   Febi Bilstein: 179077
-   Auger: 86689
-   Trucktec Automotive: 03.17.032
-   Meat & Doria: 5610067G
-   Sampa: 035.265
-   BRW: 25371

## 📦 Condition

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

## Details

- **Price:** 1662.73 AUD
- **Vendor:** Volvo Penta
- **Type:** Charging & Alternators
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1662.73 AUD | In stock |

## Images

- 21429782 Alternator | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21429782-alternator-genuine-volvo-penta)
> Updated: 2026-10-06