1607503 Drain Valve Automatic | Genuine Volvo Penta Part

🔧 Product Description

An automatic drain valve used in Volvo compressed-air systems to discharge accumulated water and oil condensate from an air reservoir without requiring routine manual opening.

⚙️ Key Features

• Automatic condensate discharge
• Designed for heavy-duty compressed-air reservoirs
• Reduces internal tank corrosion and moisture carry-over
• Engine-output independent pneumatic component
• Direct replacement after confirming port and reservoir arrangement

🔌 Function

The valve opens automatically under the designed operating cycle to expel condensed water and oil from the bottom of the air tank.

⚠️ Common Signs of Failure

• Water remains in the air reservoir
• Valve leaks air continuously
• Valve does not discharge during its normal cycle
• Corrosion or contamination blocks the outlet
• Air pressure builds slowly because of valve leakage

🛠️ Service Notes

• Confirm you are ordering the current 1607503 rather than the superseded 1577953 reference before fitting
• Check the valve's port size and thread match the reservoir before installation, since automatic drain valves come in different port arrangements
• After fitting, run the compressor up to working pressure and check the valve cycles and discharges cleanly rather than leaking continuously
• Check the reservoir outlet is clear of scale or debris before fitting the new valve, since contamination carried over from the old one can block the replacement immediately

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1607503 → Supersedes 1577953

OEM / Related Numbers

• 1577953 earlier number superseded by this part

📦 Condition

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