# 21707914 Wiring Harness | Genuine Volvo Penta Part

## 🔧 Product Description

Alternator-system wiring harness used across Volvo Penta TAD16 industrial engines. It connects the 28-volt alternator, engine harness and charging/monitoring circuits using the factory terminals and protective loom.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD1640VE-B
-   Volvo Penta TAD1641VE-B
-   Volvo Penta TAD1642VE-B
-   Volvo Penta TAD1641VE
-   Volvo Penta TAD1642VE
-   Volvo Penta TAD1643VE
-   Volvo Penta TAD1650VE
-   Volvo Penta TAD1660-62VE
-   Volvo Penta TAD1662VE EU5

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Genuine Volvo Penta electrical component
-   Factory connector keying and wire lengths
-   Marine-grade insulation and terminal protection
-   Designed for the original control-system generation
-   Serial-specific connector and routing check required

## 🔌 Function

Carries power, ground, communication or sensor signals between the connected engine and control-system components.

## ⚠️ Common Signs of Failure

-   Batteries not charging, or the charge warning staying on with the engine running
-   Charging voltage low or unstable at the batteries
-   Terminals at the alternator discoloured, corroded or burnt
-   Insulation chafed or heat-damaged where the loom passes the alternator or the hot side of the engine
-   Connector at the alternator loose or no longer latching

## 🛠️ Service Notes

-   Supersedes 881787, so an order placed against the old number is filled with this harness
-   Check the alternator output and the main earth connections before condemning the harness, as a poor earth gives identical symptoms

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21707914 → Supersedes 881787

### OEM / Related Numbers

-   881787 earlier number superseded by this part
-   Associated 28 V / 110 A alternator: 21429786

### Other-Brand OEM Numbers

-   VOE21707914

### Aftermarket / Verified Equivalents

-   Alternator bracket: 3829091
-   Associated belt: 20430376

## 📦 Condition

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

## Details

- **Price:** 449.14 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 449.14 AUD | In stock |

## Images

- 21707914 Wiring Harness | Genuine Volvo Penta Part
- 21707914 Wiring Harness | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21707914-wiring-harness-genuine-volvo-penta)
> Updated: 2026-09-19