BMW E81 E87 LCI E90 116i 316i N43 Complete Engine N43B16A New Timing WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

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

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

BMW E81 E87 LCI E90 116i 316i N43 Complete Engine N43B16A New Timing WARRANTY is a complete powertrain from the N43 family, designed for the 1 Series models after the facelift. This used petrol engine, featuring preserved, compact accessories and a new timing chain kit, offers an attractive solution for a conscious, cost-effective repair of the power unit in your BMW. Thanks to its factory configuration for the N43B16A, it is an ideal choice for users looking for a technically consistent base for further installation.

Specifications and technical data

• SKU: 0439140-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0439140
• Substitutable numbers: 11000439140, 0439140, 11000439141, 0439141, N43, N43B16, N43B16A
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 56 000

Technical characteristics of the N43B16A engine

The offered assembly comes from the N43 family of four-cylinder, in-line petrol units used in the BMW 1 Series E81/E87 LCI generation in the 116i version. The design is based on a modern, lightweight block with a cylinder head adapted for precise combustion process control. Petrol fuel type and the four-cylinder layout ensure a good balance between smooth operation and fuel consumption, which is important both in daily use and on longer trips.

As a complete power unit, the engine serves as a solid base for swapping into a vehicle with a damaged engine, without the need to build a configuration from scratch. The use of a new timing chain kit reduces the risk of typical failures associated with worn-out chains and guide components.

Scope of application and compatibility

The complete N43B16A engine is intended for the BMW 1 Series E81 and E87 after the facelift in the 116i version, where units from the N43 family were used as standard. By maintaining the original architecture and the N43 series designation, installation in a vehicle designed for this unit is technically consistent with the manufacturer's factory specifications.

The unit has assigned OEM part numbers and interchangeable numbers, which facilitates compatibility verification via VIN or in the manufacturer's catalogs. Before purchasing, it is worth comparing the engine code with the vehicle documentation to confirm full compatibility with the electrical system, accessories, and engine control unit.

Condition, mileage, and benefits of the new timing chain

The engine is classified as a used power unit, meaning it comes from an operated vehicle but maintains performance parameters suitable for further use. The declared mileage allows for assessing the degree of component wear and planning any necessary service activities after installation in the car.

A key advantage is the new timing chain kit, which significantly increases operational safety. In practice, this means a reduced risk of failures related to chain stretching or tensioner wear, and thus a lower probability of costly mechanical damage. For workshops and individual users, this translates into a more predictable cost for the entire engine replacement operation.

Why choose a used BMW petrol engine

Purchasing a used petrol engine for a BMW is a reasonable compromise between cost and functionality. Units from the N43 family, with proper maintenance, offer good durability and smooth operation, and the availability of spare parts facilitates subsequent use. By choosing a complete engine with a new timing chain, you limit the number of unknowns after installation and shorten vehicle downtime.

If you want to better understand how to safely approach the purchase of a used powertrain, check out the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, where you will find a discussion of selection procedures based on VIN and OEM, as well as practical cost calculation examples.

Practical installation tips and engine selection

Before installation, standard preparatory activities are recommended, such as replacing consumables, checking the tightness of the oil and cooling systems, and verifying accessories for compatibility with the vehicle's installation. This minimizes the risk of unplanned downtime after starting the unit in the car.

For users purchasing a used engine for the first time, the practical step-by-step guide How to buy a used car engine and not get scammed – a step-by-step guide will be helpful, describing what to look for when assessing the condition of the unit and how to interpret information about mileage and service history.

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 blocks, heads, or complete long blocks, check out the available parts in the BMW Engines category.