3838338 Pressure Cap | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta pressure cap rated at 1 bar, from the Cooling System group. It weighs 64 grams and is listed for 10 applications across the D and MD engine series.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-B TA
• Volvo Penta D7C-TA
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, MD

⚙️ Key Features

• Rated at 1 bar
• 64 grams
• 10 applications across D and MD series
• Cooling System group

🔌 Function

Seals the coolant header and holds the system at its designed pressure, raising the coolant's boiling point, then releases above the set pressure to protect the circuit.

⚠️ Common Signs of Failure

• Coolant pushed out into the expansion tank or overflow when hot
• Coolant boiling or surging at temperatures it used to hold
• Rubber sealing washer hardened, cracked or deformed
• Weeping or steaming from the filler neck
• Hoses collapsing as the engine cools, showing the vacuum valve has stuck

🛠️ Service Notes

• Fit the correct 1 bar rating — a cap of a different pressure will either vent early or overpressure the circuit
• Never open the cap while the engine is hot; release it only once the system has cooled
• Check the filler neck seat and cam surfaces for corrosion when fitting a new cap

📦 Condition

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