BMW E60 E61 E90 E91 325i 525i N52 N52B25A Bare Engine with New Timing WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

BMW E60 E61 E90 E91 325i 525i N52 N52B25A Bare Engine with New Timing WARRANTY is a complete powertrain from the N52 family, designed for BMW 3 Series E90 325i and 5 Series 525i petrol models. This unit belongs to the highly regarded group of BMW inline-six engines, providing smooth operation, high refinement, and solid performance, while the installation of a new timing system significantly enhances its operational value.

Specifications and technical data

• SKU: 0415402-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0415402
• Substitutable numbers: 11000415402, 0415402, 11000398738, 11000398739, 11000415403, 11000415404, 0398738, 0398739, 0415403, 0415404
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical characteristics of the N52B25A engine

The presented engine falls into the Engines category and represents a modern BMW petrol design with six cylinders in an inline configuration. This type of powertrain is valued for its linear power delivery, stable operation across the entire rev range, and high level of refinement, which translates into driving comfort both on the highway and in city traffic.

The N52B25A engine was designed with dynamic yet economical driving in mind. The use of technologies characteristic of this engine family allows for precise control of the combustion process, which promotes efficient acceleration and predictable throttle response. The six-cylinder design also ensures favorable mechanical load distribution, which is important for component durability.

New timing system – a key element of reliability

A significant advantage of this unit is the new timing system, which is crucial for trouble-free operation in N52 family engines. Replacing the timing components eliminates typical risks associated with wear, such as noise, chain stretch, or incorrect camshaft synchronization, which can lead to power loss or more serious failures.

Thanks to the new timing system, the user receives an engine prepared for continued operation without the need for immediate investment in this area. This is particularly important when installing in vehicles intended for intensive use – both in daily commuting and on longer trips. This solution increases service predictability and facilitates the planning of future vehicle maintenance.

Purpose and compatibility with BMW E90 325i and 525i

BMW E60 E61 E90 E91 325i 525i N52 N52B25A Bare Engine with New Timing WARRANTY is intended for use in popular mid-size BMW models, where a combination of comfort, dynamics, and durability is valued. This unit is a suitable solution both for replacing a damaged engine and for a comprehensive vehicle rebuild after a major failure.

The six-cylinder petrol engine fits well with the character of these models, providing smooth power delivery and the pleasant sound typical of BMW inline-sixes. As a result, it is an attractive proposition for users who want to maintain the original character of the car, avoiding compromises associated with installing units of a different configuration.

Condition, mileage, and benefits of installation

The unit is in used condition, with a relatively low mileage for this class of engine, which favors further operation provided that proper maintenance is followed. The combination of moderate wear and a new timing system makes this a cost-effective solution compared to a full rebuild of an existing engine.

By installing this unit, the user gains:

• consistency with the factory specifications of BMW E90 325i and 525i models,
• an inline, six-cylinder petrol engine with high operational refinement,
• reduced risk of timing-related failures due to the replacement of these components,
• the ability to restore the vehicle's full performance without the need for time-consuming regeneration of the old unit.

Technical support and additional materials

To better plan the engine replacement in a 3 Series, it is worth familiarizing yourself with the typical problems occurring in these models – a practical guide to problematic units can be found in the article Troublesome BMW E90 engines: check what can ruin your budget!, which helps you consciously choose the right engine and avoid costly mistakes.

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 gasket sets, valve covers, or additional power units, check the available parts in the BMW Engines category.

For owners of older BMW models who want to breathe new life into their car using proven components, the guide on using used parts in renovation projects may also be helpful: The second life of a youngtimer – how used car parts rejuvenate cars from 1998–2012. This makes it easier to plan a vehicle upgrade using a properly selected N52 family engine.