BMW 1 3 SERIES E81 E87 LCI E90 E91 116i 316i 122HP Bare Engine N43B16AA 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 1 3 SERIES E81 E87 LCI E90 E91 116i 316i 122HP Bare Engine N43B16AA WARRANTY is a used, original BMW petrol engine block, designed for compact and mid-size 1 Series and 3 Series models. It is a solution for users looking for a technically compatible, four-cylinder engine for professional repair or replacement of the powertrain. By maintaining the factory design concept, it serves as a solid base for installing auxiliary components.

Specifications and technical data

• SKU: 0439140
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0439140
• Substitutable numbers: 11000439140, 0439140, 11000439141, 0439141, N43, N43B16A, N43B16
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 56 000

Purpose and compatibility with BMW models

The presented bare engine block from the N43 family is dedicated to selected versions of the BMW 1 Series E81/E87 LCI and 3 Series E90/E91 with 122 HP, in 116i and 316i variants. The unit's construction was developed specifically for petrol propulsion, ensuring consistency with the factory architecture of these models' powertrains.

The engine as a bare block serves as a base for transferring auxiliary components from the previous unit – a solution particularly beneficial for post-accident repairs, major overhauls, or engine replacement due to mechanical wear.

Construction and technical characteristics

The unit belongs to a modern line of BMW engines with a compact, lightweight design, engineered for efficient petrol combustion and reduced mechanical losses. The four-cylinder layout provides a good balance between refinement and operating economy, which is particularly important in daily city and suburban driving.

As a bare block, the engine is prepared to work with the vehicle's factory equipment, such as the fuel injection system, ignition system, manifolds, or auxiliary components. This configuration allows for maintaining the vehicle's original specification while enabling flexible adaptation to a specific equipment version.

Condition, mileage, and use in repairs

The engine comes from dismantling and is offered as a used component, which allows for significantly reducing repair costs compared to a brand-new unit. The declared mileage is important information when planning further operation and any potential service work after installation.

In practice, such a block is often chosen by workshops specializing in BMW as a base for:

• restoring vehicle performance after a mechanical failure of the powertrain,
• replacing an engine with excessive wear or damage that is not cost-effective to repair,
• professional regeneration using the original block and cylinder head.

Benefits of choosing a used BMW engine block

Choosing a used BMW engine block from the N43 family is a reasonable compromise between cost and functionality. You receive a base that is structurally compatible with your car, which facilitates installation and reduces the risk of fitment issues. At the same time, you retain the ability to take an individual approach to auxiliary components – you can transfer proven parts from your existing engine or decide to replace them.

For users and workshops, it is also important that this type of petrol unit works well with factory BMW engine control systems, which promotes stable operation after proper adaptation and configuration.

Selection by numbers and technical support

To correctly select the block for a specific vehicle, it is crucial to verify compatibility using part numbers and the vehicle's VIN. The product has assigned interchangeable numbers, which facilitates the identification of the appropriate variant in BMW catalogs and service systems.

If you want to better understand how to safely and consciously buy used powertrains, it is worth reading the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which describes, among other things, procedures for selection by VIN/OEM and the real cost differences between new and used components.

BMW engines – expansion and modernization of the powertrain

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 powertrains, check the available parts in the BMW Engines category.