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You will receive a non-binding offer by 10 a.m on the next working day

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Engine N46B20B BMW 5 Series E60 Z4 E85 X3 E83 1 E87 3 E90 E91 E92 E93 E81 E82 E88 X1 E84 520i 2.0i xDrive 20i 118i 120i 318i 320i sDrive 18i 156hp 150hp 129hp 136hp

Engine N46B20B BMW 5 Series E60 Z4 E85 X3 E83 1 E87 3 E90 E91 E92 E93 E81 E82 E88 X1 E84 520i 2.0i xDrive 20i 118i 120i 318i 320i sDrive 18i 156hp 150hp 129hp 136hp

Side view of an N46 B20 B engine on a wooden pallet against a white background. The engine is vertically oriented.
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Buy N46 B20 B engine

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1.679,00 €

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🟡 Occasionally in stock ❓

⚠️ Note on availability:

Due to high demand and rapidly changing stock levels, we are unable to display real-time availability in our webshop. The availability indication therefore represents an estimate of the likelihood that a motor is currently in stock.

For binding information and a concrete offer, we kindly ask you to submit a request. You will receive an offer within a few hours.

incl. VAT, plus shipping costs

4–8 business days delivery time.

In Stock

Request now without obligation

Online orders in our online shop is currently not available: please fill out the “Availability Request Form” first. You will then receive a tailored offer in PDF format, after which you can place your order directly via email or phone.

Non-committal offer: This engine (N46 B20 B) is also available through other sales channels (both online and offline). Consequently, the possibility of a short-term intermediate sale cannot be ruled out. It is essential to check the engine’s availability and compatibility with your vehicle before proceeding.

WE ARE HERE TO HELP YOU!

Available N46 B20 B engines

Discover our diverse range of engines – perfectly tailored to your individual needs. Whether you're looking for affordable replacement engines, complete engines, or professional engine overhauls: with us, you're guaranteed to find the right solution for your vehicle.


The listed prices vary depending on the mileage and current stock levels/capacities. You will receive a binding price with a customized offer upon request.

Our used N46 B20 B engine without attachments includes the following scope of delivery:

  • Tested short block (engine block with oil pump, crankshaft, bearings, connecting rods, pistons)

  • Cylinder head including camshaft and valves

  • Oil pan & valve cover (used as transport protection, may need to be reused from the old part)

  • Testing procedures: Leak-down test, cylinder inspection with endoscope camera, inspection of oil pan and valve cover, visual check of crankshaft & camshafts, examination of residues in oil pump and oil pan

The timing chain/belt must be replaced before installation.
Request the availability of the engine now—free and without obligation:

Our complete used N46 B20 B engine with attachments includes the following scope of delivery:

  • Tested engine (engine block + cylinder head)

  • Untested attachments such as starter, injectors, injection system, turbocharger, ignition coils, intake manifold, and much more

  • Oil pan & valve cover used as transport protection (may need to be reused from the old part)

  • Testing procedures: Leak-down test, cylinder inspection with endoscope camera, inspection of oil pan and valve cover, examination of residues in oil pump and oil pan

Attachments are included free of charge, but without any warranty.
The timing chain/belt must always be replaced before installation.
Request the availability of the engine now—free and without obligation:

Our overhauled N46 B20 B engine without attachments has been fully reconditioned to 0 km and includes:

  • Fully overhauled engine block with cylinder head

  • New parts: valves, valve stem seals, piston rings, main/connecting rod bearings, oil pump, internal timing chain/belt

  • Processing & testing procedures: camshaft and crankshaft are measured, polished, crack-tested, and ultrasonically cleaned; cylinder head is measured, resurfaced, and ultrasonically cleaned; block is honed, ground, and measured; pistons are inspected, cleaned, and undergo UV crack testing

A durable engine in like-new condition – ideal for the highest demands.
Request the availability of the engine now—free and without obligation.

With our customer engine overhaul service, we recondition your defective N46 B20 B engine:

  • Collection of your engine (without attachments)

  • Professional overhaul to 0 km with high-quality new parts (e.g., Kolbenschmidt, FEBI, FAI)

  • New parts: valves, piston rings, oil pump, bearings, internal timing chain/belt

  • Processing & testing procedures: camshaft and crankshaft are measured, polished, crack-tested, and ultrasonically cleaned; cylinder head is measured, resurfaced, and ultrasonically cleaned; block is honed, ground, and measured; pistons are inspected, cleaned, and undergo UV crack testing

After approximately 10–12 business days, you will receive your reconditioned engine back.
Request the availability of the overhaul service now—free and without obligation.

Check compatibility and availability of engine N46 B20 B

Kindly complete the “request for quote” form. We will confirm whether the engine N46 B20 B matches your vehicle and provide you with detailed proposals for all the available options, whether you’re looking for a used engine, a reconditioned one, or prefer it bare or complete. Following this, you may proceed to place your order directly.
Request for Quote

" I'll assess the availability and verify the compatibility of the engine N46 B20 B using your vehicle's VIN before sending a detailed quote to your email.

Each engine is subject to another rigorous quality check prior to dispatch to ensure only those in prime condition are shipped from our warehouse.

Our exclusive partnership with the DB-Schenker delivery service enables us to offer engines at unbeatable prices and ensure the quickest possible delivery times. "

Stefan
StefanCustomer Consultant

" I'll assess the availability and verify the compatibility of the engine N46 B20 B using your vehicle's VIN before sending a detailed quote to your email.

Each engine is subject to another rigorous quality check prior to dispatch to ensure only those in prime condition are shipped from our warehouse.

Our exclusive partnership with the DB-Schenker delivery service enables us to offer engines at unbeatable prices and ensure the quickest possible delivery times. "

Stefan
Stefancustomer consultant

Engine description:

  • Engine code: N46 B20 B, N46B20B
  • Engine condition: Rebuilt, Remanufactured or Used engine
  • Contents of delivery Bare engine (without attached parts) or a complete engine (depending on your choice)
  • Mileage: 0km (overhauled) or up to max 130,000km (details in the PDF offer)

Your benefits:

  • Security: 12 months warranty
  • Reliability: Engine specialist and wholesaler since 1993
  • Superior Quality: All engines are rigorously tested

Compatible vehicles with engine N46 B20 B:

  • Makes: BMW
  • Models: 1 Series E81, 1 Series E82, 1 Series E87, 1 Series E88, 3 Series E90, 3 Series E91, 3 Series E92, 3 Series E93, 5 Series E60, X1 E84, X3 E83, Z4 E85
  • Motorization: 118i 129hp 95kW, 118i 136hp 100kW, 120i 150hp 110kW, 120i 156hp 115kW, 2.0i 150hp 110kW, 318i 129hp 95kW, 318i 136hp 100kW, 320i 150hp 110kW, 320i 156hp 115kW, 520i 156hp 115kW, sDrive 18i 136hp 100kW, sDrive 18i 150hp 110kW, xDrive 20i 150hp 110kW
Detailed list of compatible vehicles

N46 B20 B Engine Technical Specifications & Compatibility.

Additional information

Engine Code

N46 B20 B, N46B20B
Make

BMW
Model

1 E81, 1 E82, 1 E87, 1 E88, 3 E90, 3 E91, 3 E92, 3 E93, 5 E60, X1 E84, X3 E83, Z4 E85
Motorization

118i, 120i, 2.0i, 318i, 320i, 520i, sDrive 18i, xDrive 20i
Power (hp)

136hp, 129hp, 150hp, 156hp
Power (kW)

100kW, 110kW, 115kW, 95kW
Fuel

Petrol
Number of Cylinders

4
Engine Capacity (ccm)

1995
Compression

10.5
Bore (mm)

84
Stroke (mm)

90
Number of Bearings

5
Number of Valves

16
Engine Charging

Naturally Aspirated Engine
Combustion

Petrol Engine
Fuel Mixture

Intake Manifold Injection/ Carburettor
Engine Type

Straight
Cylinder Type

DOHC
Engine Management

Chain
Price Used Engine (€)

1679
Price Complete Engine (€)

3199
Price Engine Overhaul (€)

3199

About Us

  • Our firm, with its headquarters in Mittenwalde, Germany, has been a prominent distributor of used and reconditioned engines since 1993
  • As of June 2022, we've sold over 36,000 engines and transmissions, making us one of the world’s leading engine suppliers.
  • A significant portion of our sales are to intermediaries and automotive workshops, a testament to our competitive prices and dependable service.

Robust and durable N46 B20 B engine for BMW

  • Our used engines come from second-hand/accident-damaged vehicles (insurance). These are not repaired or makeshift engines.
  • That's why our engines are notably long-lasting and sturdy.

Thoroughly tested BMW N46 B20 B engine

  • The N46 B20 B, N46B20B engine undergoes a thorough inspection before sale:
  • Compression test (leakdown)
  • Endoscopic inspection, oil pan, cylinders,
  • Valve cover, crankshaft, camshaft, oil pump, etc., are all checked.
  • Detailed control procedures are available in the PDF offer.

Our service for the N46 B20 B engine

  • Depending on availability, we offer various N46 B20 B, N46B20B engines for your BMW:
  • A tested used bare engine without ancillary parts
  • A reconditioned engine reset to 0km
  • A complete engine with ancillary parts
  • Customer's engine reconditioning
  • Engine installation/mounting (This is no longer offered due to capacity reasons)

Awards and Reviews for Fair-Motors

Award for being the most popular engine dealer in Germany
"FAIR-MOTORS is the MOST POPULAR engine dealer on the biggest comparison platform for engines and engine repair (MotorschadenVergleich.de)."
Rated 4.68 out of 5
Excellent
4,68 out of 5,00 Stars
total 327 Reviews
89,76% positive
(Sep. 2022) 

Information about the BMW replacement engine N46 B20 B:

The N46 B20 B, N46B20B engine is used by the manufacturer BMW in the following models: 1 Series E81, 1 Series E82, 1 Series E87, 1 Series E88, 3 Series E90, 3 Series E91, 3 Series E92, 3 Series E93, 5 Series E60, X1 E84, X3 E83, Z4 E85.

Engine type and performance:

Depending on the engine control unit, the Petrol engine N46 B20 B has an output of 136hp, 129hp, 150hp, 156hp, which is equivalent to 100kW, 110kW, 115kW, 95kW.

The 4-cylinder Naturally Aspirated Engine engine is Water-cooled and produces a torque of Nm with a displacement of 1995ccm.

The 118i, 120i, 2.0i, 318i, 320i, 520i, sDrive 18i, xDrive 20i N46 B20 B engine features 16 valves, 5 bearings, and achieves a compression ratio of 10.5 with a stroke of 90 mm and a bore of 84 mm.

It is a DOHC Petrol Engine Straight engine with Intake Manifold Injection/ Carburettor, powered by a Chain.

Detailed list of compatible vehicles for the engine N46 B20 B:

Make Model Motorization
BMW1 (E81) [from 2006/09 to 2012/09]118 i [129 hp, 95 kW, 1995 cc, from 2006/09 to 2008/02]
BMW1 (E81) [from 2006/09 to 2012/09]118 i [136 hp, 100 kW, 1995 cc, from 2006/09 to 2011/12]
BMW1 (E81) [from 2006/09 to 2012/09]120 i [156 hp, 115 kW, 1995 cc, from 2007/03 to 2011/12]
BMW1 (E87) [from 2003/02 to 2013/01]118 i [129 hp, 95 kW, 1995 cc, from 2004/07 to 2007/02]
BMW1 (E87) [from 2003/02 to 2013/01]118 i [136 hp, 100 kW, 1995 cc, from 2006/10 to 2011/06]
BMW1 (E87) [from 2003/02 to 2013/01]120 i [150 hp, 110 kW, 1995 cc, from 2004/06 to 2007/02]
BMW1 (E87) [from 2003/02 to 2013/01]120 i [156 hp, 115 kW, 1995 cc, from 2007/03 to 2011/06]
BMW1 Convertible (E88) [from 2007/12 to 2013/12]118 i [136 hp, 100 kW, 1995 cc, from 2008/09 to 2013/12]
BMW1 Convertible (E88) [from 2007/12 to 2013/12]120 i [156 hp, 115 kW, 1995 cc, from 2008/03 to 2013/12]
BMW1 Coupe (E82) [from 2006/10 to 2013/10]120 i [156 hp, 115 kW, 1995 cc, from 2009/09 to 2013/10]
BMW3 (E90) [from 2004/02 to 2012/02]318 i [129 hp, 95 kW, 1995 cc, from 2005/09 to 2007/08]
BMW3 (E90) [from 2004/02 to 2012/02]318 i [136 hp, 100 kW, 1995 cc, from 2007/09 to 2011/10]
BMW3 (E90) [from 2004/02 to 2012/02]320 i [150 hp, 110 kW, 1995 cc, from 2004/12 to 2007/08]
BMW3 (E90) [from 2004/02 to 2012/02]320 i [156 hp, 115 kW, 1995 cc, from 2007/02 to 2011/12]
BMW3 Convertible (E93) [from 2006/05 to 2013/12]320 i [156 hp, 115 kW, 1995 cc, from 2007/01 to 2013/08]
BMW3 Coupe (E92) [from 2005/01 to 2013/12]320 i [152 hp, 112 kW, 1995 cc, from 2010/01 to 2013/12]
BMW3 Coupe (E92) [from 2005/01 to 2013/12]320 i [156 hp, 115 kW, 1995 cc, from 2007/06 to 2013/12]
BMW3 Touring (E91) [from 2004/12 to 2012/12]318 i [129 hp, 95 kW, 1995 cc, from 2006/01 to 2007/08]
BMW3 Touring (E91) [from 2004/12 to 2012/12]318 i [136 hp, 100 kW, 1995 cc, from 2007/09 to 2012/03]
BMW3 Touring (E91) [from 2004/12 to 2012/12]320 i [150 hp, 110 kW, 1995 cc, from 2005/09 to 2012/06]
BMW3 Touring (E91) [from 2004/12 to 2012/12]320 i [156 hp, 115 kW, 1995 cc, from 2005/09 to 2012/06]
BMW5 (E60) [from 2001/12 to 2010/03]520 i [156 hp, 115 kW, 1995 cc, from 2007/09 to 2010/02]
BMWX1 (E84) [from 2009/03 to 2015/06]sDrive 18 i [136 hp, 100 kW, 1995 cc, from 2010/03 to 2015/06]
BMWX1 (E84) [from 2009/03 to 2015/06]sDrive 18 i [150 hp, 110 kW, 1995 cc, from 2010/03 to 2015/06]
BMWX3 (E83) [from 2003/01 to 2011/12]2.0 i [150 hp, 110 kW, 1995 cc, from 2005/07 to 2008/08]
BMWX3 (E83) [from 2003/01 to 2011/12]xDrive 20 i [150 hp, 110 kW, 1995 cc, from 2008/09 to 2011/08]
BMWZ4 Roadster (E85) [from 2002/09 to 2009/12]2.0 i [150 hp, 110 kW, 1995 cc, from 2005/03 to 2009/02]

FAQ:

The quickest way is to fill out the “request for quote” form. Please provide the engine code N46 B20 B and your VIN number so we can accurately identify the engine that is compatible with your vehicle. You will swiftly receive a detailed offer in PDF format via email. If everything matches, you can then proceed with the order.

It depends on the inventory. We sell N46 B20 B engines either complete or bare. The complete engines come with spare parts included.

The engine is compatible with the following make and models:
BMW | 1 Series E81, 1 Series E82, 1 Series E87, 1 Series E88, 3 Series E90, 3 Series E91, 3 Series E92, 3 Series E93, 5 Series E60, X1 E84, X3 E83, Z4 E85

To be certain, you should provide us with your VIN number so we can verify the engine’s compatibility.

The contents of the delivery vary depending on the engine. For the complete engine, we deliver the engine block with the cylinder head, valve cover, oil pan, and the injection system, turbocharger, alternator, manifold, wiring harness, etc. For the bare engine without ancillary parts, we deliver the engine block with the cylinder head, valve cap, and oil pan.

  • The contents of the delivery may vary. Please check the exact contents of the delivery in the PDF offer.

The mileage depends on the condition of the engine. The overhauled engine has been reset to 0km. The mileage of the used engine can vary. Make a brief inquiry on our website, and you will receive a detailed offer with precise mileage information.

The following parts are replaced with NEW ones:

  • Valves
  • Valve stem seals
  • Piston rings
  • Connecting rod bearings and main bearings
  • Oil pump
  • Timing chain with tensioner

Additional revision steps:

  • The camshaft and crankshaft are measured, polished, checked for cracks, and ultrasonically cleaned.
  • The cylinder head is measured, leveled, and ultrasonically cleaned.
  • The block is planed, sanded, and measured.
  • Pistons are inspected, cleaned, and subjected to UV crack testing.
  • Leakdown tests

✅ We can, of course, also overhaul your faulty engine.

FULL SERVICE:

We handle everything in-house, from engine overhauling to marketing and web design. This cuts down on many costs.

EFFICIENT USE OF OUR MACHINES:

Our processes are finely tuned, ensuring no downtime. Our machines and staff are fully utilized.

OPTIMIZED TASK DISTRIBUTION:

Each person works solely within their area of expertise. For instance, we have different specialists for various makes/types of engines. This saves a significant amount of time and enhances quality.

Yes, sometimes. The deposit varies depending on the engine.

The price of the engine varies depending on the engine’s condition:

Used engine: 1679 €

Complete engine: 3199 €

Overhauled engine: €

Engine Overhaul: 3199 €

Please note: Prices and availability are provided for guidance only!

Make an inquiry on the website to receive a detailed and final offer.