Oil Pipe BMW F20 F21 LCI Diesel B37 Turbocharger Return Outlet Line 8513613

The BMW F20 F21 LCI B37 Turbo Oil Hose is an original turbocharger component designed for the diesel engines of the compact BMW 1 Series facelift models. It ensures a stable oil supply to the turbocharger, which is crucial for the durability and efficiency of the engine.

Specifications and technical data

• SKU: 8513613
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8513613
• Substitutable numbers: 8513613, 11428513613
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and function in the turbocharging system

The turbo oil line is responsible for supplying lubricant to the turbocharger in a diesel engine. Proper oil flow:

• reduces wear of turbine bearings,
• stabilizes the operating temperature of the turbocharger,
• reduces the risk of seizure and leaks,
• supports smooth, predictable operation of the B37 engine.

In the case of diesel engines, where the turbocharger operates under high load, a functioning oil line is one of the key elements of the reliability of the entire system.

Construction, fit and performance parameters

This BMW F20 F21 LCI B37 turbo oil hose is sourced from the original BMW parts line, ensuring a factory fit for the lubrication and turbocharging systems. The hose design is specifically designed for use in diesel engines, including:

• appropriate inner diameter for proper oil flow,
• geometry adapted to the engine compartment of the F20/F21 models after facelift,
• temperature and pressure resistance typical of turbocharged diesel engines.

Thanks to this, assembly is carried out in an orderly manner, without the need for modifications or fitting substitutes with uncertain parameters.

Condition, origin and benefits of choosing a used part

The hose is offered as a used part, allowing for a reasonable repair cost while maintaining the original BMW specification. When properly maintained and free of mechanical damage, this type of component can still ensure proper oil flow parameters and system tightness.

Choosing the original oil line from dismantling is a solution often preferred by mechanics specializing in BMWs – especially where maintaining the factory geometry and mounting points, as well as compatibility with the turbocharging system of a specific engine version, is important.

Importance for the durability of the B37 diesel engine

In BMW B37 diesel engines, the turbocharging system operates under demanding conditions, and the quality of lubrication has a direct impact on:

• turbocharger service life,
• boost pressure stability,
• exhaust emissions and unit operating culture,
• overall reliability of the drive in everyday operation.

A functioning turbo oil line minimizes the risk of turbine lubrication starvation, which can lead to costly breakdowns. Replacing a worn or leaking line is therefore preventative maintenance that significantly extends the life of the entire system.

Selection of other components of the BMW turbocharging system

If you're also looking for other turbochargers and parts for BMW, check out our dedicated offer: turbochargers and parts for BMW . This makes it easy to assemble the remaining turbocharger components for your specific model and engine version.

Technical support and selection of engine accessories

When planning service, it's worth taking a broader look at all the engine components – not just in BMW but also in other premium brands. For a comparison of service practices and breakdown prevention, you can refer to the guide: How to Maintain Engine Components in Popular Mercedes-Benz C-Class and E-Class Models . This will help you better understand the importance of regular inspections of oil lines, timing systems, and injection systems in modern engines.