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
$ 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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Vargas Turbo Technologies - Corporate Logo
T#:558084
Part#: VTT-CRANK-BREATH
In Stock
$ 129.99 USD
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$ 129.99 USD
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VTT is happy to introduce the first and only available plug and play crankcase breather kits for ALL BMW applications that use the two-prong oil tab style oil fill caps. With this breather simply remove your oil cap, install the breather, and instantly free up horsepower, improve turbo draining, remove crankcase pressure, all while adding a cool look to your engine bay.

Can be used by itself with the stock PCV system to eliminate crankcase pressure, or with any number of PCV setups for the ultimate in crankcase pressure relieve 

Made from 6061-T6 Aircraft aluminum anodized black for a long-lasting finish, 4 stainless steel baffles for complete oil control, a PTFE one way check ball, a high-quality filter, and clamp all work together to keep crankcase pressure where it belongs, out of your crankcase.

This breather will fit:
 ALL BMW's with the two-prong style oil fill cap including but not limited to N54, N55, S55, S54

NOTE: NOT ALL THE MODELS LISTED HAVE THE SAME HOOD CLEARANCE, WE CANNOT SAY WHICH MODELS WILL HAVE CLEARANCE ISSUES, AND WHICH WILL NOT AS WE HAVE NOT TEST IT ON ALL MODELS. IF YOU ARE ORDERING THE BREATHER FOR ANYTHING OTHER THAN AN N54 TEST CLOSE YOUR HOOD CAREFULLY TO ENSURE CLEARANCE IF IT DOES NOT FIT LET US KNOW, AND WE WILL GET YOU A REFUND ONCE THE BREATHER IS RETURNED.

MODEL LIST OF REPORTED CLEARANCE ISSUES: N55 E/F 3 SERIES

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OEM NGK Spark Plugs - Set Of Six (DCPR8EKP/7415)
We Price Match - Give Us A Call or Chat!
NGK - Corporate Logo
T#:340536
Part#: DCPR8EKP-6
In Stock
$ 107.99 USD
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$ 107.99 USD
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Revitalize your BMW's performance with NGK's Original Spark Plugs, designed to address common issues like poor idle, reduced fuel efficiency, and engine misfires associated with worn-out spark plugs. These NGK plugs offer a solution by preventing electrode wear, which causes an oversized gap and weak sparks over time. They effectively tackle carbon buildup issues that can bridge the gap and hamper performance. Replacing worn-out plugs with NGK aftermarket units restores power, enhances fuel efficiency, and ensures a smoother idle for optimal engine performance.

Product Benefits:

  • Resolves poor idle, low fuel efficiency, and engine misfires
  • Prevents electrode wear for consistent spark
  • Reduces carbon buildup for improved performance
  • Restores power and fuel efficiency
  • Enhances engine smoothness and responsiveness
  • Ensures better harmony within the ignition system
  • Unlocks hidden horsepower and raises fuel economy
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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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Valve Spring Removal & Installation Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:589348
Part#: 029610SCH01A
In Stock
Sale - Save 20% $ 96.99

This product was last offered at the strikethrough price on
11-07-2026

$ 77.59 USD
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Sale - Save 20%
$ 96.99

This product was last offered at the strikethrough price on
11-07-2026

$ 77.59 USD
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Elevate your BMW maintenance with this comprehensive tool kit designed for valve and valve stem seal removal and replacement, all without the need to remove the head. This time-saving kit ensures efficiency and ease in the process, making it an essential for DIY enthusiasts and professionals alike. The universal fitment and a range of adapters guarantee versatility across various brands and motors, providing maximum utility.

  • Removes and replaces valves and valve stem seals without head removal
  • Time and effort-saving solution
  • Wide range of adapters for versatile use
  • Universal fitment for compatibility with different brands and motors
  • Essential for DIY and professional use

Contents:

  • 1 - Lever Bar
  • 4 - Valve Spring Compressor Adapters
  • 1 - Slotted/Notched Pulling Device
  • 1 - Hook Pulling Device
  • 1 - Connector for Valve Spring Adapters
  • 1 – Connector for Pulling Device
  • 1 - Extension for Valve Spring Adapters
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Schwaben Camshaft Timing Tool - M50 M52 S50 S52 M42 M44
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Schwaben - Corporate Logo
T#:378974
Part#: 003304SCH01A
In Stock
Sale - Save 15% $ 119.99

This product was last offered at the strikethrough price on
11-07-2026

$ 101.99 USD
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Sale - Save 15%
$ 119.99

This product was last offered at the strikethrough price on
11-07-2026

$ 101.99 USD
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If you have ever attempted to do a valve job or cylinder head gasket project on an M42, M44, M50, or M52 engine you know that the repair manual will refer to the special BMW timing tool kit. This tool kit includes a flywheel locating lock pin, and a special set of camshaft locators that lock the cams in a precise location. The tools are very easy to install. The kit is specifically designed to hold the engine and cams in proper timing during the cylinder head removal and re installation process. This avoids the chance of bending the valves doing the head install process. The precision ground holding blocks lock over the square ends of both intake and exhaust cams. The CNC machined flywheel locating pin passes through a hole in the rear of the engine block and passed through a machined hole in the flywheel.

To avoid improper cam timing on the latest BMW engines, the factory has devised a cam timing system that locks the crankshaft and cams into a specific position prior to cylinder head removal. This method was devised to avoid any misalignment, resulting in piston to valve damage. Unfortunately without these tools re-timing the camshafts after a valve job is almost impossible. The factory specification manual does not supply installation specifications. This cam timing kit includes all the necessary components to do the job.

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


NOTE: Not compatible with S50B30 and S50B32 Euro engines!If you have ever attempted to do a valve job or cylinder head gasket project on an M42, M44, M50, or M52 engine you know that the repair manual will refer to the special BMW timing tool kit. This tool kit includes a flywheel locating lock pin, and a special set of camshaft locators that lock the cams in a precise location. The tools are very easy to install. The kit is specifically designed to hold the engine and cams in proper timing during the cylinder head removal and re installation process. This avoids the chance of bending the valves doing the head install process. The precision ground holding blocks lock over the square ends of both intake and exhaust cams. The CNC machined flywheel locating pin passes through a hole in the rear of the engine block and passed through a machined hole in the flywheel.

 

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OEM Starter Motor - E46 M3 2001-2006
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Valeo - Corporate Logo
T#:2988
Part#: 12417835735
Ships in 2 Business Days
$ 389.99 USD
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$ 389.99 USD
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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe
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3/8" Drive 45-Tooth Digital Torque Wrench
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:396470
Part#: 023382SCH01A
In Stock
Sale - Save 15% $ 163.99

This product was last offered at the strikethrough price on
11-07-2026

$ 139.39 USD
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Sale - Save 15%
$ 163.99

This product was last offered at the strikethrough price on
11-07-2026

$ 139.39 USD
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Discover precision tailored to BMW and MINI enthusiasts with the Schwaben 3/8" Drive Digital Torque Wrench – a fusion of precision, convenience, and lasting quality that defines your enthusiast spirit. Elevate your car maintenance with the convenience of digital precision, backed by our LIFETIME REPLACEMENT program that underscores our commitment to quality. Features: Precision Perfected: This torque wrench merges micro-adjustable excellence with a digital display of torque units, guaranteeing accuracy that aligns with professional standards. Easy to Read: This wrench's digital screen allows for a quick glance to suffice when checking your torque so you don't have to search for it! Versatile Control: The reversible 3/8" drive 45-tooth head, coupled with a push-button release, empowers you with effortless operation. Tailored Torque: With a range of 15-80 ft-lbs and 20-110 N-m, it's engineered to excel across various applications. Unit Variety: Read torque effortlessly in your preferred metrics: ft-lbs, N-m, Inch-lbs, cm-kg2, and m-kg. Designed for Comfort: Its ergonomic 16" (370mm) length ensures comfortable handling, precision, and control. Unwavering Accuracy: With a remarkable accuracy within +- 3%, every task becomes a statement of confidence. On-the-Go Ready: Housed in a user-friendly blow-molded case, this torque wrench is primed for storage and mobility. Continuous Power: The included 3V CR2032 battery ensures seamless operation, offering you uninterrupted convenience.
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Complete S54 Camshaft Alignment Tool Set
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:395239
Part#: 020929SCH01A
In Stock
Sale - Save 20% $ 326.99

This product was last offered at the strikethrough price on
11-07-2026

$ 261.59 USD
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Sale - Save 20%
$ 326.99

This product was last offered at the strikethrough price on
11-07-2026

$ 261.59 USD
Free Shipping

This gauge ensures that the inlet and exhaust cams are aligned perfectly. Make sure the edges are on the correct sides of the cylinder head before using.

Includes two alignment pin's which is ideal for inspection and servicing the motor with the timing chain still attached. If you are going to be removing the timing chain for service, you will need to lock both cams. 

The Ultimate kit includes every thing the standard kit does along with, a second alignment bridge, flywheel lock pin, VANOS alignment tools. and 4 bolt crank socket.

This tool fits all S54 powered BMW, including: 
2001-2006 E46 BMW M3
2001-2002 E36/7 BMW Z3M Coupe Z3M Roadster
2006-2008 E85/6 BMW Z4M Coupe Z4M Roadster
 

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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#:2995
Part#: 11781405324
In Stock
$ 117.99 USD
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$ 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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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#:3303
Part#: 11787523434
In Stock
$ 203.99 USD
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$ 203.99 USD
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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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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
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$ 185.99 USD
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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#:370775
Part#: 12317831436
In Stock
$ 322.99

This product was last offered at the strikethrough price on
08-23-2026

$ 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#:2996
Part#: 11781743994
In Stock
$ 193.99

This product was last offered at the strikethrough price on
08-03-2026

$ 145.37 USD
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$ 145.37 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#:2118
Part#: 11781433940
In Stock
$ 147.99 USD
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$ 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#:583735
Part#: 12317501690
In Stock
$ 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 4 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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1/2" Drive 45-Tooth Digital Torque Wrench
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:396471
Part#: 023380SCH01A
In Stock
Sale - Save 12% $ 190.99

This product was last offered at the strikethrough price on
11-07-2026

$ 168.29 USD
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Sale - Save 12%
$ 190.99

This product was last offered at the strikethrough price on
11-07-2026

$ 168.29 USD
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Looking to update your old torque wrenches? The Schwaben 3/8" Drive Digital Torque Wrench is your answer. 

This digital torque wrench uses an easy-to-read display to show torque amounts and settings, features a push button release, reversible 3/8" drive, 45 tooth ratchet head, and a comfortable no-slip grip and adjustment wheel.

Specifications:

  • Setting Range: 45-220 ft lbs (60-300 Nm)
  • Display Units: ft-lbs, N-m, Inch-lbs, cm-kg2, and m-kg
  • Size: 22" (550mm) length for easy leverage
  • Accuracy: +- 3%
  • Include blow molded holding case
  • Requires one 3V CR2030 battery (included)
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NGK Spark Plug - DCPR8EKP - E46 M3, MZ3 (S54), MZ4
We Price Match - Give Us A Call or Chat!
NGK - Corporate Logo
T#:338621
Part#: 7415
In Stock
Starting at $ 107.99 USD
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Starting at $ 107.99 USD
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NGK Laser Platinum Premium standard spark plug for E46 M3 (incl CSL), MZ3 01-02 (S54), MZ4

Select either a single plug or a full set of 6.

NGK has been one a top choice of automakers and mechanics since 1936 for obvious reasons. With manufacturing, quality control and consistency standards second to none, this is truly a name you trust. Turner Motorsport proudly carries the NGK brand with applications that cover all BMW/Mini models.

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E46 M3, MZ3 S54 OEM Valeo Alternator (New)
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377735
Part#: 12317831436
In Stock at Vendor
$ 522.00

This product was last offered at the strikethrough price on
07-16-2026

$ 473.99 USD
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$ 473.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Bosch - Corporate Logo
T#:639086
Part#: 16146766942
Ships in 2 Business Days
$ 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 May 6, 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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OMP - Corporate Logo
T#:1614
Part#: EA-462
Back Ordered
$ 65.00 USD
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$ 65.00 USD
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OMP Battery Cut Off Switch / Kill Switch, for use in racecars as an emergency "kill switch", to depower the electrical system in the event of a crash or other emergency. This cut off switch is FIA approved, has 6 poles and alternator protection, as well as a removable key.
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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
In Stock
$ 372.99

This product was last offered at the strikethrough price on
07-12-2026

$ 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
In Stock
$ 161.66

This product was last offered at the strikethrough price on
11-04-2026

$ 136.77 USD
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$ 136.77 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#:367424
Part#: 15138
Ships in 4 Business Days
$ 145.27

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

$ 118.99 USD
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$ 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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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 2 Business Days
$ 511.99 USD
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$ 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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Bosch - Corporate Logo
T#:4411
Part#: 11787514927
In Stock
$ 142.99 USD
Free Shipping
$ 142.99 USD
Free Shipping
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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Vargas Turbo Technologies - Corporate Logo
T#:52270240
Part#: GARROUTT4G4045
Ships on Nov 30, 2026
$ 37.99 USD
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$ 37.99 USD
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Upgrade your turbocharger exhaust connection with the VTT-FAB 86mm V-Band Outlet Flange, designed for the Garrett G40-G45 frame sizes.

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 6 Business Days
$ 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 7 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 Dec 9, 2026
$ 307.00 USD
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$ 307.00 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 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
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$ 177.99 USD
Free Shipping

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 Dec 8, 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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Valeo - Corporate Logo
T#:371896
Part#: 12317501599
Ships on Dec 8, 2026
$ 323.99 USD
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$ 323.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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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
$ 215.99

This product was last offered at the strikethrough price on
08-13-2026

$ 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.

Vargas EWG Actuator To Garrett G25-G35 Housing Bracket - BMW EWG G25/...
For vehicles with Electronic Waste Gate
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51778114
Part#: VTT-FAB-BMW-EWG-
Ships on Nov 30, 2026
$ 79.99 USD
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$ 79.99 USD
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The Vargas EWG Actuator Bracket is the definitive solution for enthusiasts looking to merge BMW’s advanced factory EWG control with the high-performance capabilities of Garrett G-Series turbochargers.
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Bosch - Corporate Logo
T#:386207
Part#: AL0703X
Ships on Dec 9, 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 Dec 9, 2026
$ 564.52 USD
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$ 564.52 USD
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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
$ 340.99

This product was last offered at the strikethrough price on
10-01-2026

$ 338.99 USD
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$ 338.99 USD
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Price Included a $40.00 Core Charge