3804567 Longblock Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit for a longblock, in the Engine group. It is the refundable charge raised against the old longblock when the exchange unit is bought, and it comes back once the worn longblock 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 3801567, which is the number to quote for the component itself. The other longblock cores running through this block are 3804553, 3804568 and 3804614, and nothing published against them separates one from another, so order the number that matches the longblock actually coming off.

⚙️ Key Features

• Core deposit line, not a longblock you can fit
• Belongs with the exchange unit, part number 3801567
• Refunded when the old longblock is returned
• Not separable from the other longblock cores here, so order by part number
• Engine group

🔌 Function

As a line item it carries the refundable core charge on the exchange; the longblock itself is the block, crankshaft, pistons and cylinder head built up as one assembly, taking the combustion loads and turning them into rotation at the flywheel.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the longblock being exchanged
• A knock or rumble from low in the engine that hardens under load
• Oil pressure down when hot, with oil use climbing and heavy blow-by at the breather
• Blue smoke at the exhaust and metallic glitter in the oil or on the filter element
• On strip-down, scored bores, picked-up main or big-end shells and a crankshaft past its wear limits

🛠️ Service Notes

• The charge is refunded when the worn longblock 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 3801567
• Engine and longblock cores both run through this block and the two names are used interchangeably across the series, so confirm what the exchange unit actually covers before the old one is stripped for return

📦 Condition

• Refundable core deposit - not a physical part