# 3805085 Turbocharger Core | Genuine Volvo Penta Part

## 🔧 Product Description

Core deposit for a turbocharger, from the Inlet and Exhaust System group. It is the refundable charge raised against the old turbocharger when the exchange unit is bought, and it comes back once the worn turbocharger is returned. The line itself is an accounting entry rather than a part, so nothing ships against it on its own. Under Volvo Penta's core numbering the exchange unit it belongs to takes part number 3802085, which is the number to quote for the turbocharger itself. No weight is published against this row, so there is nothing here to separate it from the other 52 turbocharger cores listed in this run - order the number that matches the turbocharger actually coming off, and take the return carriage from the unit in front of you rather than from the paperwork.

## ⚙️ Key Features

-   Core deposit line, not a turbocharger you can fit
-   Belongs with the exchange unit, part number 3802085
-   Refunded when the old turbocharger is returned
-   Inlet and Exhaust System group

## 🔌 Function

As a line item it carries the refundable core charge on the exchange; the turbocharger itself uses the energy left in the exhaust to spin a compressor that packs more air into the cylinders, letting the engine burn more fuel cleanly and make its rated power.

## ⚠️ Common Signs of Failure

-   This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the turbocharger being exchanged
-   Blue or black smoke from the exhaust and oil use climbing with no external leak to find
-   A siren-like whine, a rattle or a rumble from the turbo, and boost that comes up slowly or falls short of what the engine used to pull
-   Oil in the inlet ducting or the charge air cooler, with wet sooty deposits at the joints
-   Shaft play felt at the wheel on strip-down, or blade tips rubbed against the housing

## 🛠️ Service Notes

-   The charge is refunded when the worn turbocharger is returned, so keep the old unit and send it back rather than scrapping it
-   Ordering this number on its own supplies no part - it goes on the order beside the exchange unit, part number 3802085
-   Find out what killed the first one before the exchange goes on: a restricted or dirty oil feed, a starved drain, or debris drawn in through the inlet will finish the replacement the same way, so renew the oil feed and drain lines, the filters and the oil at the same time and clear any debris from the ducting

## 📦 Condition

-   Refundable core deposit - not a physical part

## Details

- **Price:** 990.0 AUD
- **Vendor:** Volvo Penta
- **Type:** Exchange & Reman Units
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 990.00 AUD | In stock |

## Images

- 3805085 Turbocharger Core | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3805085-turbocharger-core-genuine-volvo-penta)
> Updated: 2026-09-06