N46B20B Engine Long Block

2.0 L gasoline engine for BMW and MINI

A brand-new replacement long block, shipped worldwide by NANXI POWER from Zhengzhou, China.

Inline engine, multi-point injection
2.0 L
at 6400 rpm
105 kW
at 3600–4100 rpm
190 N·m
Condition
Brand new
Warranty
12 months
Minimum order
1 unit
Lead time
7–30 days

Fits BMW 1 Series E81/E82/E87/E88 (118i/120i), BMW 3 Series E46/E90/E91/E92/E93 (318i/320i), BMW 5 Series E60/E61 (520i), BMW X1 E84 and BMW Z4 E85/E86, 2004–2012

Request a quoteWhatsApp

Or email info@nanxipower.com

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Engine assembly line at NANXI POWER
Engine assembly at NANXI POWER, Zhengzhou

What is the N46B20B engine?

The N46B20B is a 2.0 L gasoline engine used by BMW and MINI: a naturally aspirated inline engine with multi-point injection, a timing chain and an aluminium with cast-iron liners block.

NANXI POWER supplies it as a brand-new long block — the core engine you install with your existing intake, fuel and electrical parts.

Compression ratio
10.5:1
Bore × stroke
84 × 90 mm
Timing drive
Timing chain
Emission standard
Euro IV

Technical specifications

Engine

Engine code
N46B20B
Brand
BMW and MINI
Displacement
2.0 L
Layout
Inline Engine
Drive
Rear-wheel Drive
Max power
105 kW at 6400 rpm
Max torque
190 N·m at 3600–4100 rpm
Bore × stroke
84 × 90 mm
Compression ratio
10.5:1

Build and supply

Fuel
Gasoline
Fuel system
Multi-Point Injection
Aspiration
Naturally Aspirated
Timing
Timing chain + Double VANOS
Cylinder block
Aluminum alloy cylinder block with cast iron liners
Cylinder head
Aluminum
Cooling
Water-Cooled
Emission standard
Euro IV
Production years
2004–2012
Condition
Brand new
Supply form
Engine long block
Packing
Non-fumigation wooden box

Reference OE numbers

Long block
11000429947
Long block
11000430936

Which vehicles use the N46B20B?

The N46B20B was fitted to these vehicles (2004–2012). Versions differ by market, so we check every order against your VIN before it ships.

  • BMW1 Series E81/E82/E87/E88 (118i/120i)
  • BMW3 Series E46/E90/E91/E92/E93 (318i/320i)
  • BMW5 Series E60/E61 (520i)
  • BMWX1 E84
  • BMWZ4 E85/E86

Confirm the fit in three steps

  1. Check the engine codeFind "N46B20B" stamped on the cylinder block or shown on the engine label.
  2. Send your VINThe 17-digit VIN tells us the model year and market version of your vehicle.
  3. Add a few photosPhotos of the old engine's front, intake side and oil pan help us match mounts and connectors.
Identification guide. The VIN and OE numbers shown are examples, not this engine's codes.

What's included in the long block

Included

  • Cylinder block
  • Crankshaft
  • Pistons
  • Connecting rods
  • Cylinder head
  • Valve train
  • Timing system
  • Valve cover
  • Oil pan

Available on request

  • Intake and exhaust manifolds
  • Fuel injectors and fuel rail
  • Ignition coils and sensors
  • Alternator, starter and A/C compressor
  • Gasket and installation kit

Need more than a long block? List the parts in your inquiry and we will quote them together.

Tested before it ships

12 month warranty

Every N46B20B is fully inspected before shipment and covered by a 12-month warranty written into your order. Before your engine leaves, you can ask for photos of:

  • The N46B20B engine code on the block
  • Cylinder head and timing cover
  • Oil pan and gearbox interface
  • Final packing in the wooden case
Engines inspected before shipment
100%
Engineering drawings
288+
Key fit clearances checked
155+
Process standards
637+

Packed for export, shipped worldwide

Each long block is sealed, fixed to a pallet and packed in a non-fumigation wooden case, so it clears customs without extra treatment. NANXI POWER branded or neutral packing is available.

Lead time
7–30 days
Minimum order
1 unit
Freight
Sea, air or land
Trade terms
EXW, FOB, CIF, DDP
Documents
Invoice and packing list

Common questions

Which vehicles use the N46B20B engine?

The N46B20B is used in the BMW 1 Series E81/E82/E87/E88 (118i/120i), BMW 3 Series E46/E90/E91/E92/E93 (318i/320i), BMW 5 Series E60/E61 (520i), BMW X1 E84 and BMW Z4 E85/E86, produced 2004 to 2012. Versions differ by market, so send your VIN and we will check the exact version for your vehicle.

What are the main specifications of the N46B20B?

2.0 L gasoline, inline engine, 105 kW at 6400 rpm, 190 N·m at 3600–4100 rpm, timing chain, multi-point injection.

Which OE numbers can I compare with the N46B20B?

Reference numbers for comparison: 11000429947, 11000430936. They help you check the part, but we confirm the final match against your VIN, engine label and photos before the order.

Is the N46B20B long block brand new or remanufactured?

It is supplied brand new. Every engine is inspected before shipment, and you can ask for photos before it leaves.

Is this N46B20B a complete engine or a long block?

It is a long block: the assembled cylinder block and cylinder head with the crankshaft, pistons, connecting rods, valve train and timing system. Intake, fuel-system and electrical parts can be added to your quotation.

What warranty comes with the N46B20B long block?

12 months. Coverage and conditions are written into your order.

Do I need to replace the timing chain when installing?

No. The long block is supplied with its timing chain already fitted. Fit new gaskets and check the cooling and fuel connections when you install it.

Can I order one engine, and how long does delivery take?

Yes, the minimum order is one unit. Orders usually ship within 7 to 30 days depending on quantity.

Which trade terms do you offer?

EXW, FOB, CIF and DDP. Tell us your destination port or address and we will quote the terms that suit your order.

About NANXI POWER

Zhengzhou Nanxi Engine Co., Ltd. has been in the engine business since 1998, supplying brand-new and remanufactured engines and long blocks to buyers in Russia, Central Asia, Africa, the Middle East, Europe and the Americas.

In the engine business since
1998
Engines supplied each year
50,000+

About usQuality and warrantyContact

Get a quote for the N46B20B

Tell us the quantity and destination. Add your VIN if you would like us to confirm the fit.

Prefer to talk directly? WhatsApp +86 138 3718 4958 info@nanxipower.com

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