3801519 Longblock | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured long block for the TWD1644GE and TWD1645GE, weighing 1371.664 kg. The reman catalogue defines a long block as a cylinder block assembly with pistons, connecting rods, crankshaft, camshaft, cylinder heads, rocker mechanism, oil pan and valve cover, and lists no reman short block for this engine. These are two-stage engines: the catalogue puts cylinder head 3801803, unit injector 3801144, circulation pump 3801418 and a pair of turbochargers against them, 3801142 on high pressure and 3801141 on low pressure. It is the only TWD-series long block listed here, the other four all being TAD. Supplied on an exchange basis: core deposit 3804519 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1644-45GE

• Engine Family: TWD

⚙️ Key Features

• Contains pistons, connecting rods, crankshaft, camshaft, cylinder heads, rocker mechanism, oil pan and valve cover
• 1371.664 kg
• The only TWD-series long block of the five listed here
• No reman short block is offered for this engine
• Runs a two-stage turbo installation - 3801142 high pressure and 3801141 low pressure

🔌 Function

Carries the whole reciprocating core of the engine as one remanufactured assembly - block, crankshaft, pistons, connecting rods, camshaft, cylinder heads and rocker gear - so a worn or damaged engine can be put back into service without buying a new one.

⚠️ Common Signs of Failure

• Low or uneven compression
• Heavy crankcase blow-by
• Bottom-end knock rising with load
• Oil pressure down when hot
• Coolant in the oil

🛠️ Service Notes

• Confirm the engine is TWD series, as the TAD-series long blocks here sit in the same weight band
• Inspect both turbocharger stages and the pipework between them before the rebuilt engine is loaded, since debris from one stage travels into the next
• Core deposit 3804519 is charged with this unit and refunded when the old one is returned - order both together

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging