3804915 Cylinder Head Core | Genuine Volvo Penta Part

🔧 Product Description

This line is the core deposit on a cylinder head exchange, the refundable sum charged against the worn cylinder head that has to be handed back. It is not a component and nothing is despatched when it is ordered. Volvo Penta numbers a core deposit 3000 above the unit it belongs to, which puts this one against 3801915, listed in our catalogue as Cylinder Head Reman. Near-identical cylinder head deposits sit alongside it, among them 3804916, 3804894 and 3804903, and nothing in our records separates one from another, so order by the number of the cylinder head being exchanged. Credit follows the return of the worn unit rather than the sale itself.

⚙️ Key Features

• Refundable core charge, not a part that ships
• Pairs with 3801915, listed as Cylinder Head Reman
• Raised against the old cylinder head on an exchange purchase
• Near-identical siblings include 3804916 and 3804894
• Credited when the old cylinder head is returned

🔌 Function

Carries the refundable core charge on a cylinder head exchange. The line supplies nothing itself; the head it stands against closes the top of the cylinders and holds the valve gear, injector bores and coolant passages.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the cylinder head being exchanged
• Coolant disappearing with no external leak, or bubbles rising in the header tank
• White smoke and a sweet smell from the exhaust, or pressure in the cooling system
• Overheating that returns as soon as the engine is worked
• Cracks between the valve seats, corrosion around the injector bores, or a face found out of flat on strip-down

🛠️ Service Notes

• Ordering this line on its own supplies no cylinder head. It is the deposit that rides alongside the exchange unit, so the cylinder head itself has to be ordered as a separate line.
• The charge is refunded when the old cylinder head 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 head with its valves and studs in place; a head that has been cut about, welded or had the seats knocked out is normally refused.

📦 Condition

• Refundable core deposit - not a physical part