High-performance OEM-grade BMW N46B20 2.0L naturally aspirated engine assembly. Precision-remanufactured long blocks and short blocks available for High Power (150HP/156HP - N46B20A/B) and Low Power (129HP/136HP - N46B20C/E) variants. Directly replaces OE part numbers 11000415372, 11000415374, and 11000431086. Fits BMW 3 Series (E90/E46), 5 Series (E60), 1 Series (E87), X1 (E84), and X3 (E83). Features new upgraded valve stem seals, Valvetronic testing, pre-shipment video verification, and a 12-month warranty.
100% Fitment Guaranteed: Checked via VIN before shipping.
12-Month Warranty: Full quality assurance.
Strict QC Passed: Compression test & endoscope inspection video provided.
Global Express & Sea Freight: Door-to-door delivery with customs clearance support.
Technical Specifications：
| Attribute Item | Detailed Specifications |
| Engine Model | BMW N46B20 (A / B / C / E / BZ) |
| Intake System/Displacement | Naturally Aspirated / 1,995 cc (2.0L) |
| Cylinder Configuration/Number of Valves | Inline 4 / 16 (DOHC) |
| Core Technology | Valvetronic + Double-VANOS |
| High-Power Version Output (20i Class) | 110 kW (150 HP) or 115 kW (156 HP) @ 6400 rpm | 200 N·m @ 3600 rpm |
| Low-Power Version Output (18i Class) | 95 kW (129 HP) or 100 kW (136 HP) @ 5750 rpm | 180 N·m @ 3250 rpm |
| Bore × Stroke/Compression Ratio | 84.0 mm × 90.0 mm / 10.5:1 |
| Compatible Drive Types | Primarily designed for rear-wheel drive (RWD / sDrive) |
Vehicle Compatibility
The N46B20 engine is widely used in BMW’s previous-generation classic platforms (E-series):
For BMW 3 Series (E90 / E91 / E92 / E93): 318i / 320i [2005–2012]
For BMW 3 Series (E46): 318i / 318Ci (later models equipped with the N46) [2004–2005]
For BMW 5 Series (E60): 520i [2007–2010]
For BMW 1 Series (E81 / E87 / E82 / E88): 118i / 120i [2004–2011]
For BMW X3 Series (E83): X3 2.0i / xDrive20i [2005–2010]
For BMW X1 Series (E84): sDrive18i [2009–2015]
For BMW Z4 Series (E85): Z4 2.0i [2005–2008]
| Engine Version | Power Specifications | Model Series | Chassis Code | Compatible Models | Production Years |
| Low-Power Version (N46B20C/E/BZ) | 129 HP / 136 HP 180 N·m | 3 Series | E90 / E91 | 318i / 318i Touring | 2005–2011 |
| 3 Series | E46 | 318i / 318Ci | 2004–2005 | ||
| 1 Series | E81 / E87 | 118i (3-door / 5-door models) | 2004–2011 | ||
| X1 Series | E84 | sDrive18i (2WD) | 2009–2015 | ||
| High-Power Version (N46B20A/B) | 150 HP / 156 HP 200 N·m | 3 Series | E90 / E91 | 320i Sedan / Touring | 2005–2012 |
| E92 / E93 | 320i Coupe / Convertible | ||||
| 3 Series | E46 | 320i / 320Ci | 2004–2005 | ||
| 5 Series | E60 | 520i | 2007–2010 | ||
| 1 Series | E81 / E87 | 120i Hatchback | 2004–2011 | ||
| E82 / E88 | 120i Coupe / Convertible | ||||
| X3 Series | E83 | X3 2.0i / xDrive20i | 2005–2010 | ||
| Z4 Series | E85 | Z4 2.0i (Roadster ) | 2005–2008 |
Product Details:
Quality Assurance & Testing Procedure：
Cylinder Inspection: Endoscope check to ensure zero scratches inside the cylinders.
Pressure Test: Cylinder pressure and oil pressure tested within factory standards.
Crankshaft & Timing Check: Replaced with fresh oil seals and verified timing chain kit.
Pre-Shipment Video: We send a live test video of your specific engine unit before crating.
Packaging & Logistics：
Protective Packaging: Sealed in anti-rust vapor barrier bag, placed inside a heavy-duty ISPM-15 certified export wooden crate.
Lead Time: 5–10 working days for processing and testing.
Shipping Methods: Air Freight (DDP/DAP) for urgent orders; Sea Freight for bulk/B2B orders.
FAQ Section：
Q: How do I make sure this engine fits my vehicle?
A: Please send us your 17-digit Vehicle Identification Number (VIN) or frame number via live chat or order notes. Our technical team will verify compatibility within 10 minutes.
Q: Is this a complete long block or short block?
A: We offer both options. The standard listing is for a complete engine assembly (Long Block with cylinder head, oil pan, and timing system). External accessories like turbochargers, alternators, and starter motors can be included upon request.
Q: What is the warranty policy?
A: We provide a 12-month limited warranty covering core internal components (crankshaft, pistons, camshafts, block). Warranty claims require proof of installation by a certified mechanic.
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