859084 Gasket | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta gasket from the Cooling System group, weighing 0.014 kg and recorded against 4 applications on the MD and AQD series. It supersedes part number 819689.

⚙️ Key Features

• Supersedes 819689
• 0.014 kg
• 4 recorded applications on the MD and AQD series
• Cooling System group

🔌 Function

Seals a cooling system joint so the circuit holds pressure and coolant stays inside it.

⚠️ Common Signs of Failure

• Coolant weeping at the joint once the system is hot and pressurised
• Crusty white or coloured deposit dried around the flange
• Header tank dropping with nothing visible when cold
• Gasket swollen, softened or crushed thin on removal
• Pitting and corrosion on the face beneath the old gasket

🛠️ Service Notes

• Clean corrosion off the flange before fitting — pitted metal under a gasket is the usual reason a new one weeps immediately
• Pressure-test the system rather than waiting for a sea trial to find the leak

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 859084 → Supersedes 819689 → Supersedes 817673

OEM / Related Numbers

• 819689 earlier number superseded by this part
• 817673 earlier number superseded by this part

📦 Condition

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