The N20B20 is a 2.0L turbocharged inline-four gasoline engine produced by BMW from 2011 to 2017/2018, part of the N20 series. It served as the primary powertrain for BMW’s compact and midsize cars and SUVs at the time, powering the 20i, 25i, and 28i models through different ECU calibrations. “4WD” typically refers to versions equipped on xDrive all-wheel-drive models; the engine block is essentially identical to that of rear-wheel-drive (sDrive) models, with the main difference lying in the adaptation of the drivetrain.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Engine Code: N20B20 (Common variants: N20B20A, N20B20O0, N20B20U0, etc.)
Displacement: 1,997 cm³ (2.0 L)
Bore × Stroke: 84.0 mm × 90.1 mm
Compression Ratio: 10.0:1 or 11.0:1 (higher for low-power versions)
Cylinder Configuration: Inline 4-cylinder, aluminum alloy block + steel-plated cylinder walls
Valve Train: DOHC 16-valve + Valvetronic III + Double-VANOS (dual variable intake and exhaust valve timing)
Fuel system: Direct injection (TVDI / High Precision Injection)
A long block typically includes: the cylinder block, crankshaft, pistons, connecting rods, cylinder head (partially included),
and timing system. It does not include peripheral components such as intake and exhaust manifolds, turbochargers, fuel injectors,
or the engine control unit (ECU). When replacing a long block, verify the specific variant code and the vehicle’s VIN.
The BMW N20B20 engine is used in selected BMW xDrive applications, including:
BMW 320i xDrive – Selected F30 applications
BMW 320i xDrive Touring – Selected F31 applications
BMW 320i xDrive Gran Turismo – Selected F34 applications
BMW 328i xDrive – Selected F30 applications
BMW 328i xDrive Touring – Selected F31 applications
BMW 328i xDrive Gran Turismo – Selected F34 applications
BMW 420i xDrive – Selected F32 applications
BMW 428i xDrive – Selected F32 applications
BMW X1 xDrive20i – Selected E84 applications
BMW X1 xDrive28i – Selected E84 applications
BMW X3 xDrive20i – Selected F25 applications
BMW X3 xDrive28i – Selected F25 applications
BMW X4 xDrive20i – Selected F26 applications
BMW X4 xDrive28i – Selected F26 applications
Compatibility Notice: This application list is for reference only. Not every vehicle in these model ranges uses the same N20B20 engine version.
Engine suffixes, power ratings, oil sump design, engine mounts, turbocharger configuration, sensors, accessories, and transmission combinations may differ.
Please provide the vehicle VIN, original engine code, and engine identification label to confirm compatibility.
The following BMW part numbers are reference numbers found in selected BMW parts catalogs:
| Part Number | Catalog Description | Application Note |
|---|---|---|
| 11002420311 | RP Engine | Selected F30 328iX N20B20A applications |
| 11005A42449 | RP REMAN Engine | Selected F30 328iX N20B20A applications |
| 11002420303 | RP Engine | Selected F30 328iX N20B20A applications |
| 11005A42099 | RP REMAN Engine | Selected F30 328iX N20B20A applications |
| 11002297125 | Remanufactured Short Engine | Selected F30 320iX, F34 320iX, F32 420iX and F25 X3 20iX applications |
| 11002288405 | Remanufactured Short Engine | Selected F34 320iX and F25 X3 20iX applications |
OE Reference Notice: These part numbers refer to specific BMW short engine or exchange engine catalog assemblies.
They are not universal long block OE numbers for all N20B20 xDrive vehicles.
Please verify the correct part number using the vehicle VIN, complete engine identification code, production date, and BMW ETK before placing an order.
We support professional automotive aftermarket customers, including:
Engine Importers
Automotive Parts Wholesalers
Engine Rebuilders
Auto Parts Distributors
Repair Workshops
Automotive Replacement Engine Suppliers
For accurate product matching and quotation, please provide:
Engine model: N20B20
Full engine suffix, if available
Vehicle make and model
Production year
VIN or chassis number
Original engine part number
Drive configuration: xDrive AWD or RWD
Required configuration: Long Block or Complete Engine
Order quantity
Destination country
Product condition, included components, inspection documentation, packaging, lead time,
and warranty terms can be confirmed according to the actual order.
Q1: What is the displacement of the BMW N20B20 engine?
The BMW N20B20 is a 2.0L turbocharged gasoline engine with a displacement of 1,997cc.
Q2: Is the N20B20 suitable for BMW xDrive vehicles?
Selected N20B20 versions are used in BMW xDrive vehicles, including certain 3 Series, 4 Series, X1, X3, and X4 applications.
Exact compatibility depends on the engine suffix and vehicle configuration.
Q3: Is the N20B20 a naturally aspirated engine?
No. The N20B20 is a turbocharged gasoline engine.
Q4: Are all N20B20 engines interchangeable?
No. Different engine suffixes, power ratings, production dates, and vehicle configurations may have different internal and
external components. VIN and engine-code verification is recommended.
Q5: Is the N20B20 the same as the N26B20?
No. The N26B20 is a separate emissions-related engine version with different equipment and specifications.
It should not be treated as universally interchangeable with the N20B20.
Q6: Does the N20B20 long block include the turbocharger and fuel injection system?
Not necessarily. The turbocharger, fuel injectors, high-pressure fuel pump, intake and exhaust manifolds,
ECU, and other external accessories must be confirmed separately.
Q7: How can I confirm the correct OE number?
Please provide the vehicle VIN, full engine code, original engine number, and production date.
These details help verify the correct BMW catalog reference.
Looking for a BMW N20B20 2.0L turbocharged gasoline long block engine for your wholesale, distribution, or engine replacement business?
Contact us with your vehicle information, engine identification details, required configuration, order quantity, and destination country.
Our sales team can assist with engine identification, OE reference verification, product configuration confirmation, and B2B quotation.
BMW N20B20 Engine | 2.0L Turbocharged Gasoline | xDrive AWD Applications | Long Block | B2B Wholesale Supply
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1.Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2.Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3.We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4.2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5.In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
