3801578 Coolant Pump Exch | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured circulation pump from the Cooling System group, weighing 5.715 kg. It supersedes part number 3803516, catalogued under the same name. In the industrial reman tables it is the circulation pump listed for the TAD520GE, again for the TAD550GE and TAD551GE alongside cylinder head 3801436 and turbocharger 3801245, and again in the D7 section, so one pump covers work across both engine families. It is the heavier of the two circulation pumps listed here, against 3801577 at 4.493 kg. Reman components are restored to what is technically new condition, with wear parts replaced by new genuine parts and the build brought up to the latest technical specification, then tested and painted. It is supplied on an exchange basis: core deposit 3804578 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

⚙️ Key Features

• 5.715 kg
• Supersedes 3803516
• Listed for the TAD520GE and for the TAD550GE and TAD551GE, and again in the D7 section
• Restored to technically new condition and tested

🔌 Function

Drives coolant round the engine's closed circuit so heat is carried from the block and head to the heat exchanger or radiator.

⚠️ Common Signs of Failure

• Coolant staining or dried residue at the pump seal
• Whine or rumble from the pump bearing
• Overheating that worsens with load
• Wobble at the pulley when turned by hand
• Corroded impeller vanes found on strip-down

🛠️ Service Notes

• Circulation pump 3801577 at 4.493 kg is the other pump in this group and covers different engine tables, so confirm which your engine takes before ordering
• Flush the cooling system and renew the belt and thermostat at the same time
• The old pump returns as the core once the new one is fitted and the engine is running again, releasing deposit 3804578

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801578 → Supersedes 3803516

OEM / Related Numbers

• 3803516 earlier number superseded by this part

📦 Condition

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