# 20405596 Oil Line | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta rigid oil-feed line supplying pressurised engine oil to turbocharger 20405604 on the TD520GE Stage 1 / Tier 1 engine.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD520GE
-   Volvo Penta TAD520GE
-   Volvo Penta TAD520VE

-   **Engine Family:** TD, TAD

## ⚙️ Key Features

-   Factory-formed turbocharger lubricating-oil line
-   Confirmed for TD520GE Stage 1 / Tier 1
-   Connects through hollow screw 25167 and sealing gaskets
-   Designed for full engine-oil pressure and turbocharger heat
-   Must be installed without stress, kinks or contact with hot components
-   Engine type: Volvo Penta 5-litre four-cylinder turbocharged industrial diesel

## 🔌 Function

Carries pressurised lubricating oil from the engine oil gallery to the turbocharger bearing housing.

## ⚠️ Common Signs of Failure

-   Oil leakage or wetness along the line
-   Restricted or carboned oil passage
-   Turbocharger bearing noise
-   Cracked line from vibration
-   Blue smoke or turbo failure caused by poor oil supply

## 🛠️ Service Notes

-   Work clean and cap or plug both the line and its ports as soon as they are open — anything that gets into an oil line ends up at a bearing or in the turbocharger
-   Renew the sealing washers, O-rings or gaskets at each end rather than reusing them, and start unions by hand so the seal is not loaded sideways
-   Do not bend or reshape a line to make it reach; a line strained into place fatigues and cracks at the union
-   Refit every clip and support bracket in its original position — an unsupported oil line chafes and fails through vibration
-   After fitting, check oil level, run the engine and check the unions for leaks and the oil pressure for normal reading, then check again once hot

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20405596 - current TD520GE turbo oil-feed line

### OEM / Related Numbers

-   20405604 - turbocharger
-   25167 - hollow screw
-   969011 - sealing gaskets
-   20405595 - sealing gaskets

## 📦 Condition

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

## Details

- **Price:** 349.28 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 349.28 AUD | In stock |

## Images

- 20405596 Oil Line | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20405596-oil-line-genuine-volvo-penta)
> Updated: 2026-10-12