3806543 Cylinder Head Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit for a cylinder head, from the Engine group. It is the refundable charge raised against the old cylinder head when the exchange unit is bought, and it comes back once the worn cylinder head 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 3803543, which is the number to quote for the component itself. The line is published with a weight of 53.07 kg, which is a guide to what the old cylinder head weighs on its way back rather than to anything that ships out against the deposit. That figure converts to exactly 117 lb, so read it as a shipping-scale round number rather than a measured mass. It is one of 9 cylinder head cores running through this block and 4 of them carry no published weight at all, so weight will not tell the set apart - order the number that matches the cylinder head actually coming off.

⚙️ Key Features

• Core deposit line, not a cylinder head you can fit
• Belongs with the exchange unit, part number 3803543
• Refunded when the old cylinder head is returned
• Listed at 53.07 kg, a guide to what goes back - an exact 117 lb conversion
• One of 9 cylinder head cores in this block, not separated by anything published
• Engine group

🔌 Function

As a line item it carries the refundable core charge on the exchange; the head itself closes the top of the cylinders, carries the valves, seats and ports, and seals combustion pressure and coolant against the block.

⚠️ 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
• Emulsified oil on the filler cap or dipstick, or oil showing in the coolant
• Cracks between the valve seats, or eroded and corroded fire faces, found on strip-down
• The face found bowed or pitted beyond the skim limit once it is measured up
• Coolant disappearing with no leak to be found under the engine

🛠️ Service Notes

• The charge is refunded when the worn cylinder head 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 3803543
• Prove the gasket, block face and thermostat before condemning the head, and check the block face and liner protrusion while the engine is open

📦 Condition

• Refundable core deposit - not a physical part