BMW 3 Series E46 M52 M54 Petrol Oil Cooling Pipe Inlet Outlet 1435338 1435339

BMW 3 Series E46 M52 M54 Petrol Oil Cooling Pipe Inlet Outlet is an original oil cooling system component designed for BMW 3 Series E46 petrol engines with M52 and M54 units. The pipe belongs to the Lines, hoses and pipes group, responsible for a stable connection between the oil cooler's inlet and outlet ports. This used OEM component is a solution for users looking for a technically matched part at a reasonable price, while maintaining factory geometry and fluid flow.

Specifications and technical data

• SKU: 1435339
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1435338 1435339
• Substitutable numbers: 17227577671, 7577671, 17227577672, 7577672, 17221435338, 1435338, 17221435339, 1435339, EM
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the oil cooling system

The presented oil pipe has been designed specifically for M52 and M54 petrol engines in the BMW 3 Series E46, where it is responsible for transporting oil between the engine and the oil cooler. A properly selected and leak-free pipe ensures stable oil pressure, proper cooling, and reduces the risk of engine overheating during intensive use.

This component operates under demanding temperature and pressure conditions, which is why its construction and working diameters are precisely matched to BMW's factory specifications. Using a pipe that complies with the original design minimizes the risk of leaks, pressure drops, and improper engine lubrication.

Construction and fitment for BMW 3 Series E46

The pipe belongs to the Lines, hoses and pipes group, meaning it is a component connecting individual parts of the lubrication and oil cooling system. The shape, length, and arrangement of the ends have been developed for specific mounting points in the BMW E46 engine bay, which facilitates installation and allows for maintaining the original installation routing.

Original manufacturer markings and assigned replacement numbers allow for unambiguous identification of the part and verification of compatibility with a specific engine version. Thanks to this, the pipe can be safely used as a replacement for the factory-installed component in vehicles powered by petrol fuel.

Benefits of using an original oil pipe

Using an oil pipe that complies with BMW's factory specifications brings a number of practical operational benefits:

• maintaining proper oil circulation between the engine and the oil cooler,
• reducing the risk of leaks thanks to matched ends and proper geometry,
• stable operating conditions for the engine under load,
• maintaining compatibility with the factory mounting system in the engine bay.

For users who are upgrading or servicing the lubrication system in an E46 with M52/M54 engines, choosing an original oil pipe is a technically safe solution that is consistent with the manufacturer's design assumptions.

Condition, verification, and practical application

The offered pipe is a used component, which in practice means the possibility of an economical repair of the oil cooling system while maintaining the original BMW specification. Before installation, it is recommended to perform a standard check of tightness, the condition of the ends, and working surfaces, as well as to replace accompanying seals in accordance with the vehicle manufacturer's service procedure.

The pipe will work well both for a typical replacement of a worn-out component and during major service work within the petrol engine, where restoring the factory oil circulation and cooling is required.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as oil lines, cooling hoses, or oil return pipes, check the available parts in the BMW Lines, hoses and pipes category.

For drivers interested in a broader approach to powertrain service, including the selection of used components in a way that is safe for engine and drivetrain durability, the guide article on clutch and dual-mass flywheel diagnostics and selecting parts for the drivetrain, which organizes key service issues, may be helpful.