3801553 Longblock Exch | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured long block for the 4.3L/262 cu in. V6 Gen+ with cylinder heads, roller rockers and a metric thread bellhousing, listed in the reman catalogue as fitting 2000 to 2007 and supplied with a crank sensor. Volvo Penta define a Reman long block as a cylinder block assembly with pistons, connecting rods, crankshaft, camshaft, cylinder heads, rocker mechanism, oil pan and valve cover, so the intake and fuel system, exhaust manifold and turbocharger, oil cooler, circulation pump and flywheel housing that belong to a complete Reman engine are not part of it. It weighs 242.67 kg and is listed for 143 applications, the widest fitment of the ten long blocks here. It consolidates 21165946 and 3801462, which were catalogued at various points as a base engine and a shortblock as well as a longblock engine. This unit is supplied on an exchange basis: core deposit 3804553 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

⚙️ Key Features

• 4.3L/262 cu in. V6 Gen+, fits 2000 to 2007
• Cylinder heads, roller rockers, crank sensor and metric thread bellhousing
• Contains block, pistons, connecting rods, crankshaft, camshaft, cylinder heads, rocker mechanism, oil pan and valve cover
• 242.67 kg
• Consolidates 21165946 and 3801462, previously listed as a base engine and a shortblock
• Also supersedes Volvo part number 857187

🔌 Function

Supplies the block, crankshaft, pistons, camshaft, cylinder heads and rocker gear as one remanufactured assembly, replacing the core of a worn or damaged engine without a full new unit.

⚠️ Common Signs of Failure

• Low or uneven compression
• Heavy blow-by from the crankcase breather
• Knock or rumble from the bottom end
• Oil pressure below specification when hot
• Coolant in the oil or gas in the coolant

🛠️ Service Notes

• The reman catalogue prints this same number twice against the 4.3L V6, once marked non-compliant and once as the number to use outside the US and Canada, so let us confirm it against your engine's emissions marking
• 3801611 is the Gen+ long block for 2008 and newer and 3801870 the Gen V, so the year and generation decide
• Budget for the ancillaries this package does not carry, and return the core once the new long block is in and the engine is running again

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801553 → Supersedes 21165946 → Supersedes 3862055 → Supersedes 3858440 → Supersedes 3856682 → Supersedes 3850708 → Supersedes 3854321

OEM / Related Numbers

• 3801462 earlier number superseded by this part
• 21165946 earlier number superseded by this part
• 3862055 earlier number superseded by this part
• 3858440 earlier number superseded by this part
• 3856682 earlier number superseded by this part
• 3850708 earlier number superseded by this part
• 857400 earlier number superseded by this part
• 857401 earlier number superseded by this part
• 3854321 earlier number superseded by this part

📦 Condition

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