The N20B20 is a 2.0L inline-four turbocharged gasoline engine from BMW’s N20 series.
Manufactured at the Hams Hall plant in the United Kingdom, this engine is designed to replace the naturally aspirated inline-six N52/N53 series, delivering comparable power with
a smaller displacement while improving fuel economy. It features an aluminum alloy cylinder block with an arc-sprayed steel coating (or reinforced with cast-iron cylinder liners) and
is equipped with Valvetronic III variable valve lift, Double-VANOS variable valve timing, a TwinScroll turbocharger, and a direct injection (TVDI) system.
Cylinder Block Material and Advanced Manufacturing Processes
Material: High-strength, lightweight aluminum-silicon alloy (Alusil / High-strength Aluminum Alloy). One-piece die-cast construction (Open-Deck / closed-loop reinforcement design,
in accordance with BMW’s lightweight engine casting standards). This design balances extreme weight reduction in the engine compartment with exceptional structural torsional rigidity.
Inner Wall Treatment: Cylinder walls treated using BMW’s advanced arc spraying or precision honing processes feature an ultra-low coefficient of friction and exceptional resistance to wear and
high temperatures, ensuring an exceptionally long service life for modern, highly turbocharged, high-output engines under severe operating conditions.
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.
Specifications:
Displacement: 1997 cc (2.0L)
Cylinder Configuration: Inline-4 (R4)
Bore × Stroke: 84.0 mm × 90.1 mm
Compression Ratio: 10.0:1 or 11.0:1 (depending on version)
Cylinder block material: Aluminum alloy + steel-coated/cast-iron-reinforced cylinder walls
Valve train: DOHC, chain-driven, Valvetronic III + Double-VANOS, hydraulic tappets
Emissions: EURO 5/6
BMW 1 Series & 2 Series: F20 / F22 (部分 125i / 220i / 228i)
BMW 3 Series (F30 / F31 / F34): 320i, 328i (2012–2016)
BMW 4 Series (F32 / F33 / F36): 420i, 428i
BMW 5 Series (F10 / F11): 520i, 528i (2011–2016)
BMW X1 (E84): sDrive20i, xDrive20i, xDrive28i
BMW X3 (F25): sDrive20i, xDrive20i, xDrive28i
BMW X4 (F26): xDrive28i
BMW Z4 (E89): sDrive20i, sDrive28i
(Please verify the engine code N20B20 and the VIN to confirm; the power variants correspond to different model suffixes.)
Engine Cylinder Assembly / Bare Cylinder Block—Key Reference Numbers:
11112210871, 11112349787, 11112241517
| Model Number | N20B20 |
| 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.
