# 3804905 Engine Core | Genuine Volvo Penta Part

## 🔧 Product Description

Booked as a deposit and not as a part, this line carries the refundable charge made against the old engine at the moment an exchange engine is bought. It supplies no hardware of its own. Volvo Penta numbers a core deposit 3000 above the unit it belongs to, which puts this one against 3801905, listed in our catalogue as Engine Exch. Near-identical engine deposits sit alongside it, among them 3804904 and 3804906, and nothing in our records separates one from another, so order by the number of the engine being exchanged. Until the old engine is returned the deposit stays on the account.

## ⚙️ Key Features

-   Refundable core charge, not a part that ships
-   Pairs with 3801905, listed as Engine Exch
-   Raised against the old engine on an exchange purchase
-   Near-identical siblings include 3804904 and 3804906
-   Credited when the old engine is returned

## 🔌 Function

Carries the refundable core charge on a complete engine exchange. The line itself ships nothing; the engine it stands against is the whole power unit the old one comes out to make room for.

## ⚠️ Common Signs of Failure

-   This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the engine being exchanged
-   Blue or white smoke, heavy breathing and oil consumption that keeps climbing
-   Low or uneven compression across the cylinders, or a knock under load
-   Oil in the coolant or coolant in the oil, with no external leak to explain it
-   Low oil pressure and bearing rumble, or metal glitter in the sump and filter

## 🛠️ Service Notes

-   Ordering this line on its own supplies no engine. It is the deposit that rides alongside the exchange unit, so the engine itself has to be ordered as a separate line.
-   The charge is refunded when the old engine comes back to us complete and rebuildable; a unit that has been stripped for parts, broken up or damaged in transit is normally refused for credit.
-   Return the old engine complete on its pallet with the sump, crankshaft and head in place; drain the oil and coolant first, and keep the flywheel housing and any transferable ancillaries with it unless told otherwise.

## 📦 Condition

-   Refundable core deposit - not a physical part

## Details

- **Price:** 14300.0 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 14300.00 AUD | In stock |

## Images

- 3804905 Engine Core | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3804905-engine-core-genuine-volvo-penta)
> Updated: 2026-08-22