BMW E87 E90 120i 320i 150HP Bare Engine N46B20B New Timing Installed 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 E87 E90 120i 320i 150HP Bare Engine N46B20B New Timing Installed WARRANTY is a complete powertrain unit from the BMW four-cylinder petrol engine family, designed for popular 1 and 3 series models. The engine belongs to the Engines category and is a solution for users looking for a proven, used unit with a fresh timing system already installed. It is a practical base for professional repair or replacement of a damaged engine in BMW vehicles with the N46B20B designation.

Specifications and technical data

• SKU: 0430933-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0430933
• Substitutable numbers: 11000430933, 430933, 11000391997, 0391997, N46B20B, N46B20BA, 11000430932, 0430932, 11000391996, 0391996, 0430933
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical characteristics of the N46B20B unit

The presented engine is a four-cylinder, inline petrol unit that performs well in the daily operation of BMW E87 and E90 series models. The four-cylinder design provides a balanced compromise between operating culture and service simplicity. The use of petrol fuel allows for smooth, predictable throttle response and comfortable driving both in the city and on the road.

A significant advantage is the new timing system, which significantly reduces the risk of failure in this critical area and lowers post-installation service costs. For many BMW users, this means a real extension of trouble-free operation after replacing the powertrain unit.

Purpose and compatibility with BMW models

BMW E87 E90 120i 320i 150HP Bare Engine N46B20B New Timing Installed WARRANTY has been designed for use in popular 120i and 320i versions, where the N46B20B unit is the factory solution. As a result, the engine is a natural choice when replacing a damaged unit, without the need for structural modifications in the engine bay.

The presence of dedicated OEM part numbers and interchangeable numbers (visible in the specification) facilitates compatibility verification by VIN or catalog numbers. This is particularly important for workshops and users who want to be sure they are selecting the right component for a specific vehicle equipment version and model year.

Condition, mileage, and benefits of choosing a used engine

The engine is in the used powertrain units category, which allows for a significant reduction in repair costs compared to purchasing a brand-new assembly. The declared mileage allows for an assessment of the wear level and planning of further operation, while also providing the workshop with a reference point when advising the end customer.

Choosing a used engine with a new timing system is financially beneficial because some of the key service work has already been performed. This limits the scope of post-installation activities to standard procedures, such as changing operating fluids, filters, or basic computer diagnostics after starting the unit in the vehicle.

For those who want to better understand the differences between new and used powertrain units, VIN-based selection procedures, and real operating costs, the expert guide will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. The article dispels common doubts and organizes information regarding the purchase of used engines.

Practical installation tips and workshop application

Before installation, a standard preparatory procedure is recommended: leak testing, verification of accessories, oil and filter changes, and adaptation of operating parameters in the engine control unit in accordance with the vehicle manufacturer's guidelines. This approach minimizes the risk of improper operation after installation and allows for the full potential of the unit to be utilized.

The N46B20B family engine fits well into the needs of workshops specializing in the BMW brand, which carry out both post-accident repairs and unit replacements after mechanical failures. By maintaining the original BMW design concept, it is possible to maintain factory powertrain operating parameters without interfering with the electrical installation or cooling system beyond the standard service scope.

Expansion of the offer in the BMW Engines category

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other components from the same group, such as blocks, cylinder heads, or complete powertrain assemblies, check out the available parts in the BMW Engines category.