20580170 Return Line | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta return line from the Inlet and Exhaust System group, weighing 0.145 kg and listed for 7 applications on TAD engines. Return line 20580172 carries the same name and the same seven applications at 0.240 kg, so check the number on the line that came off.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD520GE
• Volvo Penta TAD520VE
• Volvo Penta TAD530GE MECH
• Volvo Penta TAD530GE EDC4
• Volvo Penta TAD531GE MECH
• Volvo Penta TAD531GE EDC4
• Volvo Penta TAD532GE EDC4

• Engine Family: TAD

⚙️ Key Features

• 0.145 kg
• Listed for 7 applications on TAD engines
• Inlet and Exhaust System group
• Return line 20580172 covers the same seven applications at 0.240 kg

🔌 Function

Returns fluid from the component it serves back into the return circuit.

⚠️ Common Signs of Failure

• Weeping or misting from the line or its unions
• Flow backing up where the return is restricted
• Line chafed, kinked or cracked at a bend
• Union faces or sealing washers marked so they no longer seal

🛠️ Service Notes

• Oil line 20580165 is the third line listed against the same applications, at 0.213 kg
• Renew the sealing washers at the unions rather than reusing them

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20580165 - Related Oil Line
• 20580172 - Related Return Line
• 20580491 - Related Housing
• 20580494 - Related Cable Terminal
• 20580495 - Related Cable Terminal
• 20580526 - Related Washer

📦 Condition

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