BMW F20 F21 F30 F31 120d 320d 420d N47N Bare Engine N47D20C 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 F20 F21 F30 F31 120d 320d 420d N47N Bare Engine N47D20C New Timing WARRANTY is a used, complete bare engine from the N47N family, designed for modern BMW diesel units. Thanks to its four-cylinder configuration and the use of a new timing chain kit, it serves as a solid foundation for professional repair or replacement of the powertrain in 1 and 3 Series models. This is a solution for users looking for a technically refined diesel engine block that allows for an economical rebuild of the drivetrain.

Specifications and technical data

• SKU: 2220836-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2220836
• Substitutable numbers: 11002220836, 2220836, 11002220838, 2220838, 11002220839, 2220839, 11002220840, 2220840
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical characteristics of the N47N engine block

The presented bare engine belongs to the family of modern BMW compression-ignition engines, designed for dynamic yet economical driving. The four-cylinder layout ensures a good balance between refinement and combustion efficiency, which translates into smooth acceleration and stable operation across the entire rev range. The block's construction is prepared to work with the auxiliary components typical of the 120d and 320d versions, which facilitates adaptation in vehicles from the same engine family.

A significant advantage is the use of a new timing chain kit, which significantly reduces the risk of typical failures associated with timing component wear in N47N engines. For workshops and users, this means lower expenditure on additional work and greater operational predictability after installation.

Purpose and compatibility

The engine block has been prepared for use in BMW F20, F21, F30, and F31 models in 120d and 320d versions, where N47N family units are used. By maintaining the factory architecture of the block and cylinder head, it is possible to transfer the auxiliary components from the previous engine, which allows for optimizing repair costs while maintaining a high level of compatibility with the vehicle's electronics and fuel injection system.

The engine as a bare block is particularly recommended in situations where the previous unit has suffered mechanical damage (e.g., cracked block, severe seizure), while the auxiliary components remain in a condition suitable for further use. Such a configuration gives the workshop greater control over the scope of work and the selection of additional components.

Condition, mileage, and benefits of choosing a used engine block

The offered item comes from the secondary market, which allows for a significant reduction in the cost of a comprehensive repair compared to a brand-new unit. The declared mileage of the engine is relatively low for a diesel unit, which, combined with the replaced timing chain, represents a favorable compromise between price and potential for further operation.

Choosing a used engine block with a new timing chain is particularly attractive for users who plan to use the vehicle for a longer period after the repair. It reduces the risk of needing immediate intervention in the timing system after installation while allowing for a reasonable repair budget. For workshops, this means the ability to offer the customer a solution of higher technical value at a still competitive price.

To better understand the differences between new and used power units and to learn about procedures for selection by VIN and OEM numbers, it is worth reading our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths.

Practical installation tips and service application

Before installation, standard preparatory activities are recommended, such as checking for leaks, verifying the mounting points for auxiliary components, and preparing the lubrication and cooling systems in accordance with the manufacturer's procedures. The bare engine allows for an individual approach to the regeneration of auxiliary components – the workshop can decide which parts to transfer and which to replace with new or refurbished ones, optimizing costs and labor time.

In service practice, the following are particularly appreciated:

• the ability to use the existing wiring harness and engine control unit,
• the ability to match auxiliary components to the specific vehicle equipment version,
• the ability to control the quality of individual sub-assemblies during the swap.

Drivetrain expansion and selection of related components

When replacing the engine block, it is worth simultaneously assessing the condition of drivetrain components, such as the clutch or dual-mass flywheel, to avoid having to disassemble the powertrain again in the near future. A guide on diagnostics and selection of drivetrain parts may be helpful in this regard: Clutch and dual-mass flywheel – diagnostics and selection of drivetrain parts.

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 power units, check the available parts in the BMW Engines category.

Summary

BMW F20 F21 F30 F31 120d 320d 420d N47N Bare Engine N47D20C New Timing WARRANTY is a technically advanced base for rebuilding a diesel unit in popular BMW 1 and 3 Series models. The combination of a four-cylinder diesel design with a new timing chain and a favorable cost-to-potential ratio makes it a solution particularly interesting for professional workshops and conscious users looking for a rational yet solid alternative to brand-new engines.