430020 Sealing Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing ring from the Cooling System group, listed for 21 applications across the AQ, MD, BB and AQD series.

🚤 Compatibility

• Engine Family: AQ, MD, BB, AQD

Full model list at the end of this description.

⚙️ Key Features

• 21 applications across the AQ, MD, BB and AQD series
• Cooling System group
• Quantity varies by assembly, most commonly four

🔌 Function

Seals a cooling system joint, deforming into its seat to hold coolant back at the interface.

⚠️ Common Signs of Failure

• Damp patch or dried coolant trace at the joint
• Coolant top-ups needed with nothing visibly wrong
• Ring hardened, taken a permanent set or split on removal
• Seat corroded or scaled so the ring cannot bed

🛠️ Service Notes

• Replace on every disturbance and lubricate lightly with coolant so the ring seats without rolling
• Order by part number, as the published weight is too coarse to separate the small cooling rings in this group

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
• Volvo Penta AQ151A, AQ151B, AQ151C
• Volvo Penta AQ125B, AQ125A
• Volvo Penta AQ145B, AQ145A
• Volvo Penta AQD21A, AQD21B
• Volvo Penta MD21B, MD21A
• Volvo Penta 250A, 250B
• Volvo Penta AQ120B
• Volvo Penta AQ140A
• Volvo Penta BB140A
• Volvo Penta BB145A