# 20795771 Wiring Harness | Genuine Volvo Penta Part

## 🔧 Product Description

Application-specific wiring harness used in the engine wiring, sensor, heater and control harness on the listed Volvo Penta engines. Connects the specified engine sensors, actuators and control modules through the original wiring branches.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD520GE
-   Volvo Penta TAD520GE
-   Volvo Penta TAD520VE
-   Volvo Penta TAD530GE MECH
-   Volvo Penta TAD530GE EDC4
-   Volvo Penta TAD531GE MECH
-   Volvo Penta TAD531GE EDC4
-   Volvo Penta TAD532GE EDC4

-   **Engine Family:** TD, TAD
-   **HP Range:** Approximately 160-300 HP
-   **Year Range:** Approximately 1999 - 2015
-   **Serial Range:** SN5301077757-

## ⚙️ Key Features

-   Genuine Volvo Penta wiring harness
-   Designed for the engine wiring, sensor, heater and control harness
-   Connects the specified engine sensors, actuators and control modules through the original wiring branches
-   Engine type: Four- and six-cylinder electronically monitored industrial diesel

## 🔌 Function

Connects the specified engine sensors, actuators and control modules through the original wiring branches.

## ⚠️ Common Signs of Failure

-   Intermittent starting, shutdown or sensor faults
-   Multiple diagnostic codes or implausible sensor readings
-   Chafed insulation, broken conductors or damaged branches
-   Corroded, loose or heat-damaged connector terminals
-   Voltage drop, short circuit or loss of communication

## 🛠️ Service Notes

-   Disconnect battery power and compare every connector branch before installation.
-   Route the harness through the original clips and keep it clear of heat, sharp edges and moving components.

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20998739 - 12V heater relay
-   21261350 - 24V heater relay
-   21261444 - heater switch
-   20998736 - main heater cable set
-   20998750 - heater adapter
-   20573949 - earlier 600W engine heater
-   20555190 - earlier cable through SN 1098013
-   20796993 - replacement cable set from SN 1098014
-   20796994 - companion cable set
-   20405599 - O-ring
-   947628 - sealing gaskets
-   969011 - sealing gaskets

### Other-Brand OEM Numbers

-   VOE20795771 - Volvo Construction Equipment prefixed number format

## 📦 Condition

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

## Details

- **Price:** 851.59 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 851.59 AUD | In stock |

## Images

- 20795771 Wiring Harness | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20795771-wiring-harness-genuine-volvo-penta)
> Updated: 2026-09-19