3804914 Longblock Core | Genuine Volvo Penta Part

🔧 Product Description

A core deposit is an accounting line rather than a fittable part: it is the refundable charge raised against the old longblock when an exchange longblock is bought, and ordering it sends nothing out. Volvo Penta numbers a core deposit 3000 above the unit it belongs to, which puts this one against 3801914, listed in our catalogue as Longblock Exch. Near-identical longblock deposits sit alongside it, among them 3804913, 3804864 and 3804865, and nothing in our records separates one from another, so order by the number of the longblock being exchanged. The charge comes back once the old longblock reaches us.

⚙️ Key Features

• Refundable core charge, not a part that ships
• Pairs with 3801914, listed as Longblock Exch
• Raised against the old longblock on an exchange purchase
• Near-identical siblings include 3804913 and 3804864
• Credited when the old longblock is returned

🔌 Function

Carries the refundable core charge on a longblock exchange. It supplies no hardware itself; the longblock it stands against is the built-up block assembly that the ancillaries, manifolds and marine equipment are transferred onto.

⚠️ 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
• Blue smoke and rising oil consumption, with the breather pushing oil
• Low or uneven compression, or a knock that deepens with load
• Oil and coolant crossing internally, showing as emulsion on the filler cap or oil in the header tank
• Low oil pressure hot and cold, with bearing rumble at idle

🛠️ Service Notes

• Ordering this line on its own supplies no longblock. It is the deposit that rides alongside the exchange unit, so the longblock itself has to be ordered as a separate line.
• The charge is refunded when the old longblock 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 longblock complete and unstripped, with the crankshaft and head still in place, since a broken-up unit is normally refused for credit.

📦 Condition

• Refundable core deposit - not a physical part