# 20405803 Bushing | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta bushing used at the pivot of the early alternator belt tensioner on TD520GE and TD720GE engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD720GE
-   Volvo Penta TD520GE
-   Volvo Penta TAD550GE
-   Volvo Penta TAD551GE
-   Volvo Penta TAD720GE
-   Volvo Penta TAD720VE
-   Volvo Penta TAD722VE
-   Volvo Penta TAD750GE
-   Volvo Penta TAD751GE
-   Volvo Penta TAD520GE
-   Volvo Penta TAD520VE

-   **Engine Family:** TD, TAD

## ⚙️ Key Features

-   Precision tensioner pivot bushing
-   Used beside early tensioner 20405804
-   Confirmed on 14 V 55 A and 28 V 35 A alternator arrangements
-   Works with washers 20405802 and flange screw 20405917
-   Controls pivot movement and belt alignment
-   Engine type: Volvo Penta 5- and 7-litre industrial diesel

## 🔌 Function

Supports the tensioner pivot and maintains the pulley and belt alignment.

## ⚠️ Common Signs of Failure

-   Tensioner play or rattling
-   Uneven belt tracking
-   Bushing wear or seizure
-   Repeated belt edge wear
-   Tensioner pivot misalignment

## 🛠️ Service Notes

-   Check the housing bore and the shaft or pin that runs in the bushing before fitting a new one; a worn or scored mating part will chew out a new bushing quickly
-   Press bushings in squarely with a press and a correctly sized drift or mandrel — hammering one straight in distorts it and ruins the fit
-   Where the bushing has an oil hole, groove or slot, line it up with the feed in the housing before it is pressed home
-   Lubricate on assembly with the oil or grease specified for that part of the engine or drive, and follow the manual if it calls for the bore to be checked or sized after fitting
-   Do not soak a self-lubricating bushing in solvent or degreaser, and keep sealant and thread lock off the running surface

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20405804 - early tensioner
-   20405802 - washers
-   20405917 - flange screw
-   20501349 - retaining nut
-   20798457 - related later bushing

## 📦 Condition

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

## Details

- **Price:** 24.19 AUD
- **Vendor:** Volvo Penta
- **Type:** Bearings & Bushings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 24.19 AUD | In stock |

## Images

- 20405803 Bushing | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20405803-bushing-genuine-volvo-penta)
> Updated: 2026-09-21