20523051 Return Line | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Return Line - Part Number: 20523051

This genuine Volvo Penta return line is an OEM service component used in the Turbocharger Oil Return Line. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta TD/TAD5-7 generator and industrial diesel application. Technical identification: Turbocharger lubricating-oil return line. In service, it returns lubricating oil from the associated compressor, turbocharger or auxiliary assembly to the engine without restriction or leakage. Selection must be confirmed by OEM part number 20523051, the exact model/product number, serial number and installed assembly configuration.

⚙️ Key Features

• Genuine Volvo Penta OEM return line

• OEM part number 20523051

• Documented application: Turbocharger Oil Return Line

• Validated engine/application family: Volvo Penta TD/TAD5-7 generator and industrial diesel

• Technical distinction: Turbocharger lubricating-oil return line

• Primary function: Returns lubricating oil from the associated compressor, turbocharger or auxiliary assembly to the engine without restriction or leakage.

• Install without twist or preload, renew the specified seals/clamps, preserve the original routing and pressure- or leak-test the circuit after assembly.

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20523051 → Supersedes 20405924

OEM / Related Numbers:

• 20523051

• 20405924 (earlier Volvo Penta return-line reference)

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Turbocharger Oil Return Line

Typically suits:

• Engine / product models:

• TD520GE

• TAD530GE

• TAD531GE

• TAD532GE

• TD720GE

• TAD720GE

• TAD721GE

• TAD722GE

• TAD730GE

• TAD731GE

• TAD732GE

• TAD733GE

• TAD720VE

• TAD721VE

• Engine / Application Family: Volvo Penta TD/TAD5-7 generator and industrial diesel

• Serial / Configuration Note: Confirm turbocharger model and engine serial number. The line replaces earlier 20405924 in documented TAD720VE arrangements; exact low-mounted/front-outlet turbo configurations must match the schematic.

🔌 Function

Returns lubricating oil from the associated compressor, turbocharger or auxiliary assembly to the engine without restriction or leakage. Install without twist or preload, renew the specified seals/clamps, preserve the original routing and pressure- or leak-test the circuit after assembly.

Common signs of failure:

• Low or unstable engine-oil pressure, especially when hot

• Oil leakage or aeration at the pipe, fitting or connection

• Bearing, turbocharger or valve-train noise from restricted oil supply

• Elevated piston, bearing or oil temperature under load

• Sludge, carbon, debris, cracks or deformation restricting the circuit

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging