BMW Engine Parts for BMW 3 Series E46 (1999-2005)

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Bosch - Corporate Logo
T#:19449
Part#: 16137193479
In Stock
$ 90.99

This product was last offered at the strikethrough price on
03-16-2026

$ 68.99 USD
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$ 68.99 USD
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Replace the defective leak diagnosis pump -often referred to as the "DTML pump" - on your BMW with this OEM unit from Bosch. This part detects vapor leaks in the fuel evaporative system.

This item fits the following BMWs:
2008+ E82 BMW 128i 135i 135is 1M Coupe
2002-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi M3
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335i 335xi 335i xDrive M3 - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3 - Coupe
2007-2013 E93 BMW 328i 335i M3 - Convertible
2002-2003 E39 BMW 525i 528i 530i 540i M5
2004-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive 535i 535xi 535i xDrive 545i 550i M5
2010-3/2012 F07 BMW 535i GT, 535i xDrive GT, 550i GT, 550i xDrive GT
3/2012+ F07 BMW 550i GT, 550i xDrive GT
2011-3/2012 F10 BMW 528i (N52) 528i xDrive 535i 535i xDrive 550i 550i xDrive
3/2012+ F10 BMW 550i 550i xDrive
2004-2010 E63 BMW 645ci 650i M6
2012-3/2012 F12 BMW 640i 650i 650i xDrive
3/2012+ F12 BMW 650i 650i xDrive
2002-2006 E65 BMW 745i 745li 750i 750li 760i 760li
2009+ F01 BMW 740i 740li 750i 750li 750i xDrive 750li xDrive
2013+ E84 BMW X1 sDrive28i X1 xDrive28i X1 xDrive35i
2004-2010 E83 BMW X3 2.5i X3 3.0i X3 3.0si
2011 F25 BMW X3 xDrive28i
2011+ F25 BMW X3 xDrive35i
2002-2006 E53 BMW X5 3.0i X5 4.4i X5 4.6is X5 4.8is
2007-2013 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M
2008+ E71 BMW X6 xDrive35i X6 xDrive50i X6M
2002-2002 Z3 BMW Z3 2.5i Z3 3.0i M Roadster M Coupe
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
2009+ Z4 BMW Z4 sDrive28i Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is
2002-2003 E52 BMW Z8 Roadster
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Bosch - Corporate Logo
T#:2998
Part#: 11781742050
In Stock
$ 96.08

This product was last offered at the strikethrough price on
05-29-2026

$ 90.99 USD
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$ 90.99 USD
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This direct fit Bosch oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8
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Bosch - Corporate Logo
T#:2995
Part#: 11781405324
In Stock
$ 117.99 USD
Free Shipping
$ 117.99 USD
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This is the pre-cat oxygen sensor for cylinders 4-6 for BMW E46 M3.Bosch # 13 952.

This item fits the following BMWs:
2001-2006 E46 BMW M3 M3 convertible
2001-2002 Z3 BMW M Roadster M Coupe
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OEM Bosch Ignition Coil - Set of 6 - M54 S54 BMW
For vehicles with production date from 09/2002
Bosch - Corporate Logo
T#:340693
Part#: 12131712219
In Stock
$ 185.99 USD
Free Shipping
$ 185.99 USD
Free Shipping
Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.
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Bosch - Corporate Logo
T#:384364
Part#: 12412354693
In Stock
$ 269.99 USD
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$ 269.99 USD
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If your car won't turn over, there is a good chance your starter is shot. Bosch's OEM starter is a high quality replacement that will give you peace of mind thanks to its long life-span. OEM replacement for BMW part # 12412354693, 12412344242, 12412167996.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

For BMW's with the M54 engine with a production date from 09/2002.

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Bosch - Corporate Logo
T#:370775
Part#: 12317831436
In Stock
$ 512.99

This product was last offered at the strikethrough price on
03-30-2026

$ 293.99 USD
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$ 293.99 USD
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A replacement Bosch alternator for the 2001-2006 M3. Bosch is an original equipment supplier to BMW, and is the finest and most recognized German brand of alternator available. The Original BMW alternator sells for over double! Buy only the best alternator for your BMW -- buy a Bosch alternator. This is an OEM replacement for BMW part # 12317831436.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

A $80.00 refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge. 

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible
2001-2002 Z3 BMW M Roadster M Coupe

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Bosch - Corporate Logo
T#:348133
Part#: 12137594937T6KT
In Stock
$ 185.99 USD
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$ 185.99 USD
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Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code but not always a check engine light. A misfire code may be related to an ignition coil but could be from other things as well. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Bosch - Corporate Logo
T#:2118
Part#: 11781433940
In Stock
$ 147.99 USD
Free Shipping
$ 147.99 USD
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This is the post-cat oxygen sensor for cylinders 4-6 for BMW E46 E39 X3 X5 Z3 Z4. Bosch # 15 109.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325xi 328i 328ci 330i 330ci 330xi
2001-3/2003 E46 BMW 325i 325ci only for cars with M54 engine
1999-2003 E39 BMW 528i 525i 530i
2004-2006 E83 BMW X3 2.5 - Bank 1 Only
2004-2006 E83 BMW X3 3.0i - Bank 1 - Automatic Transmission Only
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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Bosch - Corporate Logo
T#:2996
Part#: 11781743994
Ships in 1 Business Day
$ 199.99

This product was last offered at the strikethrough price on
05-07-2026

$ 190.99 USD
Free Shipping
$ 190.99 USD
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Bad oxygen sensors can cause check engine lights and poor fuel mileage. Replace your faulty sensor with this high quality Bosch sensor to turn off your check engine light and restore fuel mileage.

This is the pre-cat oxygen sensor for cylinders 1-3 for BMW E46 M3. Bosch # 13 949. This is a OEM replacement part for BMW part # 11781743994.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!


This item fits the following BMWs:
2001-2006 E46 BMW M3 M3 convertible
2001-2002 Z3 BMW M Roadster M Coupe

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Bosch - Corporate Logo
T#:3303
Part#: 11787523434
In Stock
Sale - Save 22% $ 210.65

This product was last offered at the strikethrough price on
05-02-2026

$ 165.00 USD
Free Shipping
Sale - Save 22%
$ 210.65

This product was last offered at the strikethrough price on
05-02-2026

$ 165.00 USD
Free Shipping
This is the pre-cat oxygen sensor for bank 1 - cylinders 1-3 for BMW E46 E60 E83 X3 Bosch # 17 215.

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 325xi with M54 engine.
3/2003-2005 E46 BMW 330i 330ci 330xi
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 3.0i - Automatic Transmission Only
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Bosch - Corporate Logo
T#:583735
Part#: 12317501690
In Stock
$ 526.99

This product was last offered at the strikethrough price on
03-03-2026

$ 415.99 USD
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$ 415.99 USD
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If your car has died on the side of the road from a dead battery and you notice flickering or low powered headlights, it's likely your alternator failing. To be sure you are getting a high-quality part with a long life-span, choose this OEM Bosch Alternator. This is a brand new OEM replacement for BMW part # 12317501690.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Bosch - Corporate Logo
T#:2675
Part#: 11781406622
Ships in 3 Business Days
$ 208.90

This product was last offered at the strikethrough price on
05-19-2026

$ 157.99 USD
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$ 157.99 USD
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This oxygen sensor fits the following BMWs:
2001-2006 E46 3 Series M3 M3 Convertible
2001-2002 Z3 M Z3 M Roadster Z3 M Coupe with S54 engine
2006-2008 E85 E86 Z4 M Z4 M Roadster Z4 M Coupe
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Bosch - Corporate Logo
T#:367424
Part#: 15138
Ships in 1 day
$ 145.27

This product was last offered at the strikethrough price on
07-31-2026

$ 118.99 USD
Free Shipping
$ 118.99 USD
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This oxygen sensor fits the following BMWs:
2001-2006  E46 3 Series  M3 M3 Convertible
2001-2002  Z3 M  Z3 M Roadster Z3 M Coupe with S54 engine
2006-2008  E85 E86 Z4 M  Z4 M Roadster Z4 M Coupe
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Bosch - Corporate Logo
T#:639086
Part#: 16146766942
Ships in 1 Business Day
$ 185.71 USD
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$ 185.71 USD
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A failing fuel pump has many potential symptoms, including:

hard starting cold or after a heat soak
an illuminated check engine light
engine misfire under load or when cold
stalling
no-start.

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Bosch - Corporate Logo
T#:13046
Part#: 11781247406
Ships on Feb 22, 2027
$ 83.99 USD
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$ 83.99 USD
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This direct fit Bosch oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. Bosch part number 13559.

This is the pre-catalytic converter oxygen sensor

This item fits the following BMWs:
1996-1998 E36 BMW 318i 318is 318ti 318ic
1997-1998 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1998 Z3 BMW Z3 1.9
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Bosch - Corporate Logo
T#:348179
Part#: 12131712219T8KT
In Stock
$ 247.99 USD
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$ 247.99 USD
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Bosch - Corporate Logo
T#:373254
Part#: 12317519620KT
Ships in 1 Business Day
$ 380.99

This product was last offered at the strikethrough price on
05-06-2026

$ 335.00 USD
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$ 335.00 USD
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Please check the part number on the alternator to ensure that you are ordering the correct part - This alternator has an oval connector on the back! If your car has died on the side of the road from a dead battery and you notice flickering or low powered head lights, it's likely your alternator failing. To be sure you are getting a high quality part with a long life-span, choose this OEM Bosch Alternator. This is an OEM replacement for BMW part # 12317519620 & 12317519618. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform! A refundable $91.00 core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.
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Bosch - Corporate Logo
T#:4410
Part#: 11787514926
Ships in 1 day
$ 157.99

This product was last offered at the strikethrough price on
04-09-2026

$ 103.99 USD
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$ 103.99 USD
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Bosch Oxygen Sensor for BMW E46, E60, E83 with M54 or M56 engine. This is the post catalytic converter oxygen sensor for cylinders 1-3.

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 330i 330ci - Bank 1
2004-2005 E60 BMW 525i 530i - Bank 1
2004-2006 E83 BMW X3 3.0i - only for automatic transmission - Bank 1
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Bosch - Corporate Logo
T#:4411
Part#: 11787514927
Ships in 1 Business Day
$ 142.99 USD
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$ 142.99 USD
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Bosch Oxygen Sensor for BMW E46, E60, E83 with M54 or M56 engine. This is the post catalytic converter oxygen sensor for cylinders 4-6.

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 330i 330ci - Bank 2
2004-2005 E60 BMW 525i 530i - Bank 2
2004-2006 E83 BMW X3 3.0i - only for automatic transmission - Bank 2
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BMW E46 E39 E53 Z3 OEM Bosch Alternator - 120amp
For vehicles that came with a 120A Valeo alternator
Bosch - Corporate Logo
T#:373543
Part#: 12317501599
Ships in 1 Business Day
$ 526.99

This product was last offered at the strikethrough price on
05-07-2026

$ 511.99 USD
Free Shipping
$ 511.99 USD
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If you car has died on the side of the road from a dead battery and you notice flickering or low powered head lights, it's likely your alternator failing. To be sure you are getting a high quality part with a long life-span, choose this OEM Bosch Alternator. This is an OEM replacement for BMW part # 12317501599.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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OEM Bosch Remanufactured Starter - E30 E34 E46 E39 Z3
For vehicles with production date from 09/2002
Bosch - Corporate Logo
T#:373255
Part#: 12417578684KT
Ships in 5 Business Days
$ 307.99

This product was last offered at the strikethrough price on
05-07-2026

$ 300.99 USD
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$ 300.99 USD
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Includes a $71.50 core charge to be refunded after we receive your refundable core If your car won't turn over, there is a good chance your starter is shot. Bosch's OEM starter is a high-quality replacement that will give you peace of mind thanks to its long life-span. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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Bosch - Corporate Logo
T#:373451
Part#: 12417835735KTBOS
Ships in 6 Business Days
$ 366.99 USD
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$ 366.99 USD
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This starter offers reliable performance at a fraction of the cost of a new unit, providing peace of mind and ensuring your BMW starts smoothly every time. This remanufactured starter from Bosch will allow your car to start like it is new. Includes $70 core charge. 
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Bosch - Corporate Logo
T#:359520
Part#: AL0738XKITKT
Ships on Sep 24, 2026
$ 307.00 USD
Free Shipping
$ 307.00 USD
Free Shipping

If your car has died on the side of the road from a dead battery and you notice flickering or low powered head lights, it's likely your alternator failing. To be sure you are getting a high quality part with a long life-span, choose this OEM Bosch Alternator. This is an OEM replacement for BMW part # 12311432980 and 12317501690.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!


A refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge. 

This Bosch Alternator fits the following BMWs:
1997-2000 E39 5 Series 528i
2000 E46 3 Series 323i 323ci 328i 328ci
1997-2000 Z3 Roadster Z3 2.3 Z3 2.8

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Bosch - Corporate Logo
T#:37669
Part#: 11787515826
Special Order: No Guaranteed ETA
$ 177.99 USD
Free Shipping
$ 177.99 USD
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A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary.

This is the OEM Bosch oxygen sensor for 325i and 325Ci E46 BMW's. This sensor is mounted in the manifold before the catalytic converter. OEM replacement for BMW # 11787515826.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Bosch - Corporate Logo
T#:338004
Part#: 12411712937
Ships on Sep 24, 2026
Starting at $ 284.00 USD
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Starting at $ 284.00 USD
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E36/E46/M50/M52/M54 STARTER - THIS ONE IS THE "LATER" STYLE THAT DOES NOT REQUIRE NUTS. A refundable core charge will be added to your sale, refunded to you when we get your old starter back. Replaces Bosch part number SR0445X.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.​

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2005 E83 BMW X3 2.5i X3 3.0i
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 Z3 BMW M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
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Bosch Leak Diagnosis Pump - E39, E46, Z3
For vehicles with production date up to 09/2001
Bosch - Corporate Logo
T#:377059
Part#: 16136756440
Back Ordered
$ 221.99

This product was last offered at the strikethrough price on
05-07-2026

$ 202.11 USD
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$ 202.11 USD
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Located under the vehicle, near the transmission bellhousing or in the rear.
Bosch - Corporate Logo
T#:386207
Part#: AL0703X
Ships on Sep 24, 2026
$ 844.99 USD
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$ 844.99 USD
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120 amp Bosch alternator for many BMW 6 cylinders (see list below). Replaces stock Valeo alternator with rectangular plug on the back. Bosch is an original equipment supplier to BMW, and is the finest and most recognized German brand of alternator available. Buy only the best alternator for your BMW -- buy a Bosch alternator. Same as BMW part#1231751599. 

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

A refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge. 

This alternator has a rectagular connector on the back! Please check to ensure you are getting the correct alternator  

This Bosch Alternator fits the following BMWs:
1998-2000  E39 5 Series  528i
2001-2003  E39 5 Series  525i & 530i
2001-2005  E46 3 Series  325i, 325Ci, 325xi - only for cars with M54 engine
2001-2005  E46 3 Series  330i, 330Ci & 330xi
2001-2002  Z3 Roadster  Z3 2.5 liter 
2003-2005  Z4 Roadster/Coupe  Z4 2.5 liter & Z4 3.0 liter
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Bosch - Corporate Logo
T#:5774
Part#: AL0814X
Ships on Sep 24, 2026
$ 564.52 USD
Free Shipping
$ 564.52 USD
Free Shipping
Keep your BMW's electrical system delivering crisp, consistent power whether on the daily commute or at high load with the Bosch AL0814X Alternator. Built to manage the demands of performance driving and modern vehicle electronics, this 150 amp unit provides rock solid voltage stability across the full RPM range
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Bosch - Corporate Logo
T#:3471789
Part#: 124123547095KT
Back Ordered
$ 346.99

This product was last offered at the strikethrough price on
04-09-2026

$ 340.99 USD
Free Shipping
$ 340.99 USD
Free Shipping
Price Included a $40.00 Core Charge