23527643 Expansion Tank | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta expansion tank from the Cooling System group, weighing 8.165 kg and listed for ten TAD series engine applications. The tank takes up coolant expansion, so a cracked one shows as repeated top-ups.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD720GE
• Volvo Penta TAD730GE MECH
• Volvo Penta TAD730GE EDC4
• Volvo Penta TAD731GE MECH
• Volvo Penta TAD731GE EDC4
• Volvo Penta TAD750GE
• Volvo Penta TAD751GE
• Volvo Penta TAD532GE EDC4

• Engine Family: TAD

⚙️ Key Features

• Expansion tank from the Cooling System group
• 8.165 kg
• Listed for ten TAD series engine applications

🔌 Function

Takes up the coolant that expands as the engine warms and returns it as it cools, keeping the circuit full and pressurised and giving the filling point.

⚠️ Common Signs of Failure

• Repeated coolant top-ups with no obvious external leak
• Level swinging well outside the marks between hot and cold
• White or coloured crusting around a seam or the cap seat
• Tank found cracked, crazed or heat-distorted
• Cap seal perished so the system will not hold pressure

🛠️ Service Notes

• Test the pressure cap and its seat before condemning the tank - a cap that will not hold pressure causes both coolant loss and overheating
• Pressure test the circuit after fitting and check the level again once the engine has been through a full heat cycle

📦 Condition

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