Premium OEM-quality BMW N20B20 2.0T engine assembly for rear-wheel drive (RWD / sDrive) models. Precision-tested engine blocks and long blocks available in both High Power (245 HP / N20B20A) and Low Power (184 HP / N20B20C) variants. Directly replaces OE part numbers 11002220837, 11002220838, 11002220833, and 11002220834. Fits BMW 3 Series (F30/F35), 5 Series (F10/F18), 4 Series (F32), X1 (E84), and Z4 (E89). Features cylinder pressure-testing, pre-shipment video verification, 100% VIN fitment guarantee, 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.
| Parameter Items | Detailed Specifications |
| Engine Model | N20B20 (A/B/C/D) Inline-4 |
| Displacement / Intake System | 1997 cc (2.0L) / Twin-scroll single turbocharger (TwinPower Turbo) |
| Fuel Injection and Valve Technology | High-pressure direct injection + Double-VANOS (variable valve timing) + Valvetronic (variable valve lift) |
| Low-Power Output (e.g., 20i/28i base models) | 135 kW (184 HP) @ 5000 rpm |
| High-output versions (e.g., 28i/30i high-spec models) | 180 kW (245 HP) @ 5000 rpm |
| Bore × Stroke / Compression Ratio | 84.0 mm × 90.1 mm / 10.0:1 (high-output) or 11.0:1 (low-output) |
Main Compatible Models (sDrive versions)
BMW 3 Series (F30 / F35): 320i / 320Li / 328i / 328Li [2011–2016]
BMW 5 Series (F10 / F18): 520Li / 525Li / 528Li [2012–2017]
BMW X1 (E84): sDrive18i / sDrive20i [2011–2015]
BMW Z4 (E89): sDrive18i / sDrive20i / sDrive28i [2011–2016]
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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