# 478596 Piston Cooling Jet | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta piston cooling jet from the Lubricating and Oil System group, weighing 0.011 kg and listed for 3 applications in the TWD series.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TWD1230ME
-   Volvo Penta TWD1230VE
-   Volvo Penta TWD1231VE

-   **Engine Family:** TWD

## ⚙️ Key Features

-   0.011 kg
-   3 applications in the TWD series
-   Lubricating and Oil System component
-   Feeds the piston underside with cooling oil
-   6 used per assembly

## 🔌 Function

Sprays a jet of engine oil at the underside of the piston to carry heat away from the crown.

## ⚠️ Common Signs of Failure

-   Piston crown found scuffed, burnt or with the skirt seized
-   Oil pressure slightly low if a jet has broken away
-   Metallic tapping if the jet has bent into the piston path
-   Jet found blocked with carbon or sludge on strip-down
-   Jet body found cracked at its mounting

## 🛠️ Service Notes

-   A blocked or bent jet will burn a piston, so check the jets are clear and correctly aimed whenever the sump is off
-   Do not bend a jet to clear an obstruction; renew it and check the alignment with the piston at bottom dead centre

## 📦 Condition

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

## Details

- **Price:** 48.85 AUD
- **Vendor:** Volvo Penta
- **Type:** Oil & Lubrication
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 48.85 AUD | In stock |

## Images

- 478596 Piston Cooling Jet | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/478596-piston-cooling-jet-genuine-volvo-penta)
> Updated: 2026-10-10