# 20776770 Tensioner | Genuine Volvo Penta Part

## 🔧 Product Description

Application-specific auxiliary belt tensioner used in the air-conditioning compressor and auxiliary belt drive on the listed Volvo Penta engines. Applies and maintains operating tension on the auxiliary compressor or accessory V-belt.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD720GE
-   Volvo Penta TD720VE PP
-   Volvo Penta TD520GE
-   Volvo Penta TD520VE
-   Volvo Penta TAD550GE
-   Volvo Penta TAD551GE
-   Volvo Penta TAD720GE
-   Volvo Penta TAD730GE MECH
-   Volvo Penta TAD730GE EDC4
-   Volvo Penta TAD731GE MECH
-   Volvo Penta TAD731GE EDC4
-   Volvo Penta TAD750GE
-   Volvo Penta TAD751GE
-   Volvo Penta TAD520GE
-   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 160-265 HP
-   **Year Range:** Approximately 1999 - 2012

## ⚙️ Key Features

-   Genuine Volvo Penta auxiliary belt tensioner
-   Designed for the air-conditioning compressor and auxiliary belt drive
-   Applies and maintains operating tension on the auxiliary compressor or accessory V-belt
-   Engine type: Four- and six-cylinder turbocharged industrial diesel

## 🔌 Function

Applies and maintains operating tension on the auxiliary compressor or accessory V-belt.

## ⚠️ Common Signs of Failure

-   Visible wobble, run-out or misalignment
-   Belt dust, glazing, edge wear or repeated belt failure
-   Binding, excessive free play or weak tensioner movement
-   Accessory speed loss, overheating or charging/cooling performance faults

## 🛠️ Service Notes

-   Inspect the complete drive, including bearings, belt condition and alignment.
-   Use the specified tightening torque and verify free rotation before starting the engine.

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20499771 - compressor bracket
-   20464460 - hexagon screw
-   973924 - flange screw
-   20499929 - spacer sleeve
-   20499932 - hex-socket screws
-   20499931 - hex-socket screws
-   20460895 - tensioning lever
-   20513499 - bushing
-   20405917 - flange screw
-   20793522 - V-belt
-   20779978 - compressor clutch
-   20587125 - compressor/clutch family references
-   84094705 - compressor/clutch family references
-   85000458 - compressor/clutch family references
-   23576707 - compressor/clutch family references

### Other-Brand OEM Numbers

-   VOE20776770 - Volvo Construction Equipment prefixed number format

## 📦 Condition

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

## Details

- **Price:** 88.36 AUD
- **Vendor:** Volvo Penta
- **Type:** Belts, Pulleys & Tensioners
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 88.36 AUD | In stock |

## Images

- 20776770 Tensioner | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20776770-tensioner-genuine-volvo-penta)
> Updated: 2026-09-23