3801503 Longblock | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured long block for the TAD950VE, TAD951VE and TAD952VE engines, weighing 922.6 kg across three applications. Long block 3801502 covers the neighbouring TAD940 to TAD943 range at 921 kg, so only 1.6 kg separates the two and the part number is the only safe guide. A reman long block is defined as the cylinder block assembly with pistons, connecting rods, crankshaft, camshaft, cylinder heads, rocker mechanism, oil pan and valve cover - the intake and fuel system, exhaust manifold, turbocharger, oil cooler, circulation pump and flywheel housing belong to the complete engine package rather than to a long block. Reman components are restored to technically new condition, with wear parts and anything outside tolerance replaced by new genuine parts, built to a bill of material carrying all design changes so the unit meets the latest technical specification, then tested and painted before despatch. This is an exchange item: core deposit 3804503 is charged alongside it and refunded as soon as the worn long block is returned, and the core can go back once the new one is fitted and the engine is running again.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD952VE
• Volvo Penta TAD951VE
• Volvo Penta TAD950VE

• Engine Family: TAD

⚙️ Key Features

• For TAD950VE, TAD951VE and TAD952VE
• 922.6 kg
• Long block package: block, pistons, conrods, crankshaft, camshaft, cylinder heads, rocker mechanism, oil pan and valve cover
• No intake or fuel system, exhaust manifold, turbo, oil cooler, circulation pump or flywheel housing
• Within 1.6 kg of long block 3801502 - order by part number, not weight

🔌 Function

Supplies the block, crankshaft, pistons, camshaft, cylinder heads and valve gear as one remanufactured assembly, replacing the core of a worn engine while the ancillaries carry over.

⚠️ Common Signs of Failure

• Low or uneven compression across the cylinders
• Heavy blow-by from the crankcase breather
• Knocking or rumbling from the bottom end under load
• Oil pressure falling away when hot
• Scored bores, picked-up bearings or a worn crankshaft found on strip-down

🛠️ Service Notes

• Order strictly by part number: 3801502 serves the TAD940 to TAD943 range and sits within 1.6 kg of this one
• Transfer or renew the intake and fuel system, exhaust manifold, turbocharger, oil cooler, circulation pump and flywheel housing, none of which are long block content
• Core deposit 3804503 is charged with this order and refunded when the worn long block goes back - the return can wait until the new one is fitted and the engine is running again

📦 Condition

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