430018 Sealing Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing ring in the standard size, from the Cooling System group, weighing 0.002 kg and listed for 8 applications across AQ and BB series engines. It shares its standard-size marking and its 8 applications with sealing ring 430172, but that ring weighs 0.039 kg, around seventeen times more, so it is a much larger ring for a different joint.

🚤 Compatibility

Typically suits:

• Volvo Penta AQ170B
• Volvo Penta AQ170C
• Volvo Penta BB170B
• Volvo Penta BB170C
• Volvo Penta AQ165A
• Volvo Penta AQ170A
• Volvo Penta BB165A
• Volvo Penta BB170A

• Engine Family: AQ, BB

⚙️ Key Features

• Standard size
• 0.002 kg
• 8 applications across AQ and BB series engines
• Much smaller than the standard-size ring 430172 at 0.039 kg

🔌 Function

Seals a cooling system joint by being squeezed into its groove or seat, holding coolant in as the parts expand and contract.

⚠️ Common Signs of Failure

• Coolant seeping from the joint, often only when hot
• Slow, unexplained coolant loss
• Ring found flattened, hardened or nicked on removal
• Rust or scale built up in the seat

🛠️ Service Notes

• Renew the ring every time the joint is opened, and check the groove and seat are clean
• Confirm which of the two standard-size rings you need by joint size, not by weight

📦 Condition

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