3804744 Short Block Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit for a shortblock, in the Engine group. It is the refundable charge raised against the old shortblock when the exchange unit is bought, and it comes back once the worn shortblock 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 3801744, which is the number to quote for the component itself. The other shortblock core running through this block is 3804743, and nothing published against them separates one from another, so order the number that matches the shortblock actually coming off. The longblock cores in this block take in the cylinder head as well, and the engine cores a complete unit, so the three do not exchange against one another.

⚙️ Key Features

• Core deposit line, not a shortblock you can fit
• Belongs with the exchange unit, part number 3801744
• Refunded when the old shortblock is returned
• Not separable from the other shortblock cores here, so order by part number
• Engine group

🔌 Function

As a line item it carries the refundable core charge on the exchange; the shortblock itself is the block, crankshaft, connecting rods and pistons built up as one assembly, supplied without the cylinder head and everything above it.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the shortblock being exchanged
• Deep knock from the bottom end under load, distinct from the lighter tap of the valve gear
• Oil pressure falling away when hot, with the level dropping between services
• Heavy blow-by at the breather and blue smoke that will not clear
• On strip-down, scored or ridged bores, worn bearing shells and glitter in the oil filter

🛠️ Service Notes

• The charge is refunded when the worn shortblock 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 3801744
• Have the old head checked over separately before the shortblock goes in, since the shortblock exchange does not cover it and a cracked or warped head will spoil the new assembly

📦 Condition

• Refundable core deposit - not a physical part