3801804 Cylinder Head | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured cylinder head from the Engine group, weighing 270.79 kg and listed for 2 applications across the TAD and TWD series. Volvo Penta supply a reman cylinder head ready for installation with valves and springs fitted, and with the camshaft-bearing housings included where the engine has them. It supersedes part number 3801606, the partner number to the 3801605 that reman head 3801803 replaces, so the old number on your paperwork is the cleanest way to choose between the two. In the reman tables it appears alongside long block 3801688, unit injector 3801652 and turbocharger 3801625. It is supplied on an exchange basis: core deposit 3804804 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1670-72VE
• Volvo Penta TWD1683VE

• Engine Family: TAD, TWD

⚙️ Key Features

• Ready to install with valves and springs fitted
• Supersedes 3801606
• 270.79 kg
• Sister part to 3801803, which supersedes 3801605

🔌 Function

Seals the top of the cylinders and carries the valves, ports and injectors that control gas flow and fuel delivery, supplied ready to install with the valves and springs already fitted.

⚠️ Common Signs of Failure

• Coolant loss with no external leak
• White smoke or steam from the exhaust when warm
• Combustion gas bubbling in the expansion tank
• Cracks around the valve seats or injector bores
• Head face no longer flat, or sunk valve seats

🛠️ Service Notes

• Only 5 kg separates this from 3801803, so use the old part number - 3801606 points here and 3801605 points to 3801803
• Renew the gasket, bolts and any single-use fasteners, and have the block deck checked while the head is off
• The old head returns as the core once the new one is on and the engine is running again, releasing deposit 3804804

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801804 → Supersedes 3801606

OEM / Related Numbers

• 3801606 earlier number superseded by this part

📦 Condition

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