Find Parts That Fit Your Vehicle

Alternator

The alternator keeps the battery in a constant state of charge anytime the engine is running. If your lights are dimming or you hear excessive bearing noise around the alternator, chances are that it's time for a replacement.
Sort By:

OEM Bosch Alternator - E46 M3, Z3 S54
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:370775
Part#: 12317831436
In Stock
$ 512.99

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

$ 322.99 USD
Free Shipping
$ 322.99 USD
Free Shipping

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

Show More Show Less
OEM Bosch Alternator AL0703N - 120A - E38 E39 E46 E53 Z3
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
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
Free Shipping
$ 415.99 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 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!

Show More Show Less
Genuine BMW - Corporate Logo
T#:7126
Part#: 12311312137
Ships in 1-2 days
2% off MSRP $ 92.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 90.99 USD
Free Shipping
2% off MSRP
$ 92.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 90.99 USD
Free Shipping
Replace the alternator adjuster on BMW's with the M20 engine with this Genuine BMW part. Over time this part can become corroded or the teeth can become stripped.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1984-1985 E30 BMW 318i
1988-1991 E30 BMW M3
Show More Show Less

Genuine BMW - Corporate Logo
T#:19315
Part#: 12311288238
Ships in 2 Business Days
3% off MSRP $ 109.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 106.99 USD
Free Shipping
3% off MSRP
$ 109.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 106.99 USD
Free Shipping


Genuine BMW Pulley - D=66mm

This item fits the following BMW Chassis:
E30 M3,E30,E34

Fits BMW Engines including:
M10,M20,S14


Genuine BMW - Corporate Logo
T#:367801
Part#: 12311735915
Ships in 2 Business Days
1% off MSRP $ 77.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 76.99 USD
Free Shipping
1% off MSRP
$ 77.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 76.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:39011
Part#: 12317561939
Ships in 2 Business Days
6% off MSRP $ 218.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 205.99 USD
Free Shipping
6% off MSRP
$ 218.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 205.99 USD
Free Shipping


Genuine BMW Voltage Regulator - 180A / Bosch
This item fits the following BMW Chassis:
E82 1M Coupe,E70 X5 X5,E82,E83 X3,E90,E92,E93

Fits BMW Engines including:
N51,N52N,N54,N54T

Show More Show Less

Genuine BMW - Corporate Logo
T#:190752
Part#: 12427611316
Ships in 2 Business Days
2% off MSRP $ 194.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 191.99 USD
Free Shipping
2% off MSRP
$ 194.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 191.99 USD
Free Shipping


Genuine BMW Cable Alternator-Starter-Base B+ -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Fits BMW Engines including:
N55

Genuine BMW - Corporate Logo
T#:39048
Part#: 12317847517
In Stock
6% off MSRP $ 218.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 205.99 USD
Free Shipping
6% off MSRP
$ 218.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 205.99 USD
Free Shipping
Ensures proper voltage is being sent from the alternator to the electrical system and battery.

Bosch Alternator - 1993-1995 V8 - E34 530i/540i & E32 740i/740il ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:1976
Part#: AL0742X
In Stock at Vendor
$ 475.99

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

$ 464.99 USD
Free Shipping
$ 464.99 USD
Free Shipping

Replacement Bosch alternator for the 1993-1995 V8 engine (M60), found in the E34 530i & 540i, and E32 740i/740iL (thru 1994). 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.

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 Bosch Alternator fits the following BMWs:
1994-1995 E34 5 Series V8 530i & 540i
1992-1995 E32 7 Series V8 740i & 740iL
1994-1995 E31 8 Series V8 840C/ 840i

Includes $65.00 core charge to be refunded on return of your rebuildable core.

Show More Show Less

OEM Bosch Compact Alternator 120A - E39 M5
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:375962
Part#: 12311407440KT
In Stock at Vendor
$ 830.99

This product was last offered at the strikethrough price on
04-10-2026

$ 427.99 USD
Free Shipping
$ 427.99 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 # 12311407440.

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 $70.00 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: 
1999-2003 E39 BMW M5 
 

Show More Show Less
Genuine BMW - Corporate Logo
T#:373349
Part#: 12317831436KT
Ships in 2 Business Days
$ 1,503.99 USD
Free Shipping
$ 1,503.99 USD
Free Shipping

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.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This is a remanufactured alternator that includes a $50.00 refundable core charge.

Show More Show Less
OEM Bosch Remanufactured Alternator - AL0739X - 140amp -- E36 E34 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:371693
Part#: 12311744567
Ships on Sep 10, 2026
$ 453.99

This product was last offered at the strikethrough price on
07-25-2026

$ 420.99 USD
Free Shipping
$ 420.99 USD
Free Shipping

If your headlights or interior are flickering or dimming while driving, there is a good chance your alternator is dying. This high quality Bosch replacement will have your electrical system back in top shape. OEM replacement for 12311744567 and 12311738352.

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

Show More Show Less


OEM Bosch Remanufactured Alternator - 120amp -- E46, Z4
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:373254
Part#: 12317519620KT
In Stock
$ 380.99

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

$ 335.00 USD
Free Shipping
$ 335.00 USD
Free Shipping
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.
Show More Show Less
Genuine BMW - Corporate Logo
T#:38982
Part#: 12317533837
In Stock
9% off MSRP $ 456.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 425.99 USD
Limited Qty Sale
Free Shipping
9% off MSRP
$ 456.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 425.99 USD
Limited Qty Sale
Free Shipping


Genuine BMW Generator Supporting Bracket
This item fits the following BMW Chassis:
E53 48IS,E53 X5 X5,E63,E65

Fits BMW Engines including:
N62,N62N

Show More Show Less
Genuine BMW - Corporate Logo
T#:38983
Part#: 12317533840
In Stock
9% off MSRP $ 456.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 425.99 USD
Limited Qty Sale
Free Shipping
9% off MSRP
$ 456.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 425.99 USD
Limited Qty Sale
Free Shipping


Genuine BMW Generator Supporting Bracket -
This item fits the following BMW Chassis:
E63,E65

Fits BMW Engines including:
N62,N62N


Bosch Alternator - 120 Amp - E31 E38 E39
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:186964
Part#: AL0733X
Ships in 1 Business Day
$ 326.99

This product was last offered at the strikethrough price on
02-24-2026

$ 319.99 USD
Free Shipping
$ 319.99 USD
Free Shipping

120 amp Bosch alternator for many BMW M62 V8's with 7 Poly Groove Pulley. 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. Can be used in place of bmw part number. 12311433266

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 Bosch Alternator fits the following BMWs:
1997-1998 E39 5 Series 540i
1997-1998 E38 BMW 740i 740il
1996-1999 E31 BMW 840i 840ci

Includes $65.00 core charge to be refunded on return of your rebuildable core.

Show More Show Less

OEM Bosch Remanufactured 180 Amp Alternator - E82/88 E9X E60/61 N54 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:373812
Part#: 12317558220KT1
Ships in 1 Business Day
$ 1,029.99

This product was last offered at the strikethrough price on
04-10-2026

$ 749.99 USD
Free Shipping
$ 749.99 USD
Free Shipping
Replace your dead alternator with this new unit and make sure your battery is being charged properly. 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. Includes a $195.00 core charge to be refunded after we receive your refundable core.
Show More Show Less
BMW E46 E39 E53 Z3 OEM Bosch Alternator - 120amp
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:373543
Part#: 12317501599
In Stock at Vendor
$ 526.99

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

$ 511.99 USD
Free Shipping
$ 511.99 USD
Free Shipping

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!

Show More Show Less

Bosch Alternator - 210 amp - Remanufactured - $125 refundable core ch...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:580223
Part#: AL9449X
In Stock at Vendor
$ 575.99 USD
Free Shipping
$ 575.99 USD
Free Shipping
OEM Bosch Remanufactured Alternator - AL9454X - BMW E9X M3 S65 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:639734
Part#: 12317837981BKT
In Stock at Vendor
$ 526.99

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

$ 513.99 USD
Free Shipping
$ 513.99 USD
Free Shipping
*Price includes a refundable $75 Core Charge* 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. 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! Bosch Part Numbers: AL9454X, 0986UR6290 Replaces the following BMW part numbers: 12317837981, 12317838656
Show More Show Less

Genuine BMW - Corporate Logo
T#:7128
Part#: 12311432988
Ships in 5 Business Days
3% off MSRP $ 122.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 118.99 USD
Free Shipping
3% off MSRP
$ 122.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 118.99 USD
Free Shipping
This is the Genuine BMW alternator pulley that mounts to the front of the alternator. It is 55mm in diameter and designed for use on Bosch alternators.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2000 E46 BMW 323i 323ci 328i 328ci
1997-2000 E39 BMW 528i
1996-2000 Z3 BMW Z3 1.9 Z3 2.3 Z3 Z3 2.8
Show More Show Less

Genuine BMW - Corporate Logo
T#:369129
Part#: 12317526286
Ships in 2 Business Days
$ 2,230.99

This product was last offered at the strikethrough price on
04-06-2026

$ 2,200.99 USD
Free Shipping
$ 2,200.99 USD
Free Shipping

Replacement 180 amp water cooled BMW alternator for 2002-2005 E65 745i, 745Li 760i 760li. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an Original Equipment Alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested prior to and during remanufacturing to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Price includes $50.00 core charge.

This item fits the following BMWs:
2002-10/2003 E65 BMW 745i 745li 760i 760li

Show More Show Less
Genuine BMW - Corporate Logo
T#:38925
Part#: 12311739514
Ships in 4 Business Days
3% off MSRP $ 150.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 145.99 USD
Free Shipping
3% off MSRP
$ 150.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 145.99 USD
Free Shipping


Genuine BMW Supporting Bracket -
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M42

Genuine BMW - Corporate Logo
T#:39025
Part#: 12317603775
Ships in 2 Business Days
6% off MSRP $ 226.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 213.99 USD
Free Shipping
6% off MSRP
$ 226.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 213.99 USD
Free Shipping


Genuine BMW Voltage Regulator - 220A / Valeo
This item fits the following BMW Chassis:
E70 X5,E71

Fits BMW Engines including:
M57,N52N,N54,N62N

Show More Show Less


Genuine BMW - Corporate Logo
T#:190825
Part#: 12317603777
Ships in 2 Business Days
6% off MSRP $ 208.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 195.99 USD
Free Shipping
6% off MSRP
$ 208.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 195.99 USD
Free Shipping


Genuine BMW Voltage Regulator
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6,F01,F02,F10

Fits BMW Engines including:
N63,S63

Show More Show Less
Genuine BMW - Corporate Logo
T#:21713
Part#: 12318510092
Ships in 8 Business Days
6% off MSRP $ 236.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 222.99 USD
Free Shipping
6% off MSRP
$ 236.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 222.99 USD
Free Shipping
Replace your faulty voltage regulator with this Genuine BMW part. The voltage regulator is mounted in the back of alternator on M5 and M6 models with the S85 V10 engine.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2006-2011 E90 BMW 335d - Sedan
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6
Show More Show Less
Genuine BMW - Corporate Logo
T#:367803
Part#: 12317515319
Ships in 8 Business Days
6% off MSRP $ 238.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 224.99 USD
Free Shipping
6% off MSRP
$ 238.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 224.99 USD
Free Shipping
This regulator ensures the proper voltage is being sent to the alternator. Check the connection on the rear of the alternator before purchasing to make sure you are receiving the correct regulator.

OEM Bosch Remanufactured 180A Alternator - E60 528i/xi, E82/88 128i, ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:384253
Part#: 12317551256KT
Ships on Sep 1, 2026
$ 661.99 USD
Free Shipping
$ 661.99 USD
Free Shipping
This is a OEM Bosch remanufactured 180 amp alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM Bosch Alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested prior to and during remanufacturing to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications. 

A $84 core charge is included in the price. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.  

This item fits the following BMWs:  
E60 BMW 528i/xi
E82/88 BMW 128i
E9X BMW 328i/xi
E70 BMW X5 N52 3.0L (without Adaptive Drive and Four-Zone Climate Control)
E83 BMW X3 N52 3.0L
Show More Show Less

OEM Bosch Alternator - 120 Amp - E46, E39, Z3
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:359520
Part#: AL0738XKITKT
Ships on Sep 10, 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

Show More Show Less
Bosch Alternator - 150 amp (water cooled) - 1999-2003 E39 540i, E38 7...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:1981
Part#: AL0734X
Ships on Sep 10, 2026
$ 1,167.99

This product was last offered at the strikethrough price on
04-10-2026

$ 804.99 USD
Free Shipping
$ 804.99 USD
Free Shipping

Replacement 150 amp water cooled Bosch alternator for 1999-2001 E38 740i & 740iL, 1999-2003 E39 540i, and 2000-2003 X5 V8 (4.4 and 4.6 liter). 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. Replaces part number 12317508054

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 Bosch Alternator fits the following BMWs:
1999-2001 E38 7 Series 740i & 740iL
1999-2003 E39 5 Series 540i sedan & 540i touring wagon
2000-2003 X5 SAV with V8 engine - X5 4.4 & X5 4.6is

Includes $100.00 core charge to be refunded on return of your rebuildable core.

Show More Show Less

Bosch Alternator - 90 Amp - E36 325i, 325is (1992 only)
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:186965
Part#: AL0743X
Ships on Sep 10, 2026
$ 350.99

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

$ 341.99 USD
Free Shipping
$ 341.99 USD
Free Shipping
90 amp Bosch alternator for 1992 BMW E36 325i with M50 engine. 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. Can be used in place of bmw part number. 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 Bosch Alternator fits the following BMWs: 1992 E36 BMW 325i 325is Includes $35.00 core charge to be refunded on return of your rebuildable core.
Show More Show Less
Remanufactured Alternator - 170A - E6x M5 M6
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:639680
Part#: 12317836592KT1KT
Back Ordered
$ 409.99 USD
Free Shipping
$ 409.99 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 # 12317836592. 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 $75.00 core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.
Show More Show Less

Genuine BMW - Corporate Logo
T#:14807
Part#: 12311735708
Special Order: No Guaranteed ETA
4% off MSRP $ 76.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 73.99 USD
Free Shipping
4% off MSRP
$ 76.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 73.99 USD
Free Shipping


Genuine BMW Intake Manifold -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M50


Denso - Corporate Logo
T#:384619
Part#: 12317616119
Back Ordered
$ 442.99 USD
Free Shipping
$ 442.99 USD
Free Shipping

Denso Brand 

When power starts to fade in your BMW, chances are your alternator is losing power. The warning light should illuminate, warning you of such a failure. Replace with a new unit today. Do not get stuck on the side of the road.

Show More Show Less
Voltage Regulator (Bosch Alternator) - 12311747920 - E34,E36,E36 M3 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:38940
Part#: 12311747920
Back Ordered
$ 217.00

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

$ 210.99 USD
Free Shipping
$ 210.99 USD
Free Shipping
This is the voltage regulator found on the back of the alternator. It's a normal wear item and the contacts are the first thing to check if you believe the alternator is not charging the battery (lights flickering or dim, battery light on in the dash, the engine quits without warning, or other electrical failures). The voltage regulator manages the voltage flowing through the car, especially to and from the battery. There are two carbon contacts on the regulator that control the magnetic field when the alternator is spinning and these contacts wear over time. There is a wear mark on the contacts and if the tip is within 3mm of this wear mark the regulator should be replaced, regardless if that is the cause of your electrical problems or not. Most older mechanics will tell you to keep a spare regulator in your toolbox.

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 is the OEM Bosch voltage regulator and will only fit Bosch alternators.
Show More Show Less
OEM Bosch Remanufactured Alternator - AL9446X - F22/23 F30 F07/10 F06...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:639677
Part#: 12317591530BKT
Back Ordered
$ 660.99

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

$ 491.99 USD
Free Shipping
$ 491.99 USD
Free Shipping
*Price includes a refundable $85 Core Charge* 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. 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!
Show More Show Less


Bosch Alternator - 140 amp - E53 X5 3.0i 2004-2006
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:179748
Part#: AL9413X
Back Ordered
$ 399.99 USD
Free Shipping
$ 399.99 USD
Free Shipping

140 amp Bosch alternator for many BMW X5 3.0i with M54 6 cylinder engine.. Bosch is an original equipment supplier to BMW, and is the finest and most recognized German alternator brand available. Buy only the best alternator for your BMW -- buy a Bosch alternator. Same as BMW part#12317530086 or 12317532627.

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 item fits the following BMWs:
2004-2006 E53 BMW X5 3.0i

Includes $90.00 core charge to be refunded on return of your rebuildable core.

Show More Show Less
Remanufactured Alternator - 120amp
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:374262
Part#: 12311433266KT1
Ships in 1 Business Day
$ 326.99

This product was last offered at the strikethrough price on
02-24-2026

$ 319.99 USD
Free Shipping
$ 319.99 USD
Free Shipping
Don't let a failing alternator compromise your BMW's power grid or leave you stranded on the street or at the track. This direct fit replacement restores factory fresh electrical charging capacity, ensuring your battery stays fully topped off
Show More Show Less
Alternator - 150 Amp
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:591983
Part#: 12317613445
Ships in 2 Business Days
$ 592.99

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

$ 576.99 USD
Free Shipping
$ 576.99 USD
Free Shipping

Alternator - 150 Amp AL0888N
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:591981
Part#: 12317575873
In Stock at Vendor
$ 782.99

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

$ 760.99 USD
Free Shipping
$ 760.99 USD
Free Shipping

Genuine BMW - Corporate Logo
T#:360716
Part#: 12317836592
Ships in 2 Business Days
3% off MSRP $ 1,554.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,505.99 USD
Free Shipping
3% off MSRP
$ 1,554.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,505.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:377509
Part#: 12317837981KT
Ships in 4 Business Days
$ 1,184.10 USD
Free Shipping
$ 1,184.10 USD
Free Shipping
Replace your dead alternator with this remanufactured unit and make sure your battery is being charged properly. Price includes a $50 core charge.

Genuine BMW - Corporate Logo
T#:6635769
Part#: 12317501690KT
Ships in 2 Business Days
$ 779.99 USD
Free Shipping
$ 779.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:372415
Part#: 12317837691KT
Ships in 1-2 days
$ 1,089.99 USD
Free Shipping
$ 1,089.99 USD
Free Shipping

This is a Genuine BMW remanufactured alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an Original Equipment Alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested prior to and during remanufacturing to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications. 

A $50 core charge is included in the price. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.  

Fits the following BMW Chassis:
E89 BMW 
Z4 M Coupe, M Roadster

Show More Show Less

Genuine BMW - Corporate Logo
T#:637557
Part#: 12317605061KT
Ships in 4 Business Days
$ 1,422.99 USD
Free Shipping
$ 1,422.99 USD
Free Shipping
Price includes a $240.00 Core Charge Genuine BMW Generator - 210A This item fits the following BMW Chassis: E89 Z4,F22,F30,F31,F32,F33,F34,F36

Genuine BMW - Corporate Logo
T#:222858
Part#: 12318614276
Ships in 2 Business Days
8% off MSRP $ 1,193.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,092.99 USD
Free Shipping
8% off MSRP
$ 1,193.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,092.99 USD
Free Shipping

Elevate your BMW's power system with the Genuine BMW Alternator tailored for the B58 3.0L Engine. Engineered to efficiently charge your vehicle's battery and supply consistent power to its electrical systems, this alternator is a must-have for optimal performance. Invest in this genuine BMW part to enhance your vehicle's functionality and reliability.

  • Genuine BMW part for B58 3.0L Engine
  • Efficiently charges vehicle's battery
  • Supplies power to electrical systems
  • Ensures consistent and reliable performance
Show More Show Less
Genuine BMW - Corporate Logo
T#:7068780
Part#: 12317521178KT
Ships in 2 Business Days
$ 1,203.99 USD
Free Shipping
$ 1,203.99 USD
Free Shipping
If your alternator fails, you will find yourself stranded rather quickly. Symptoms of a failing alternator include dimming lights when stopping, and bogging accessories when running A/C, stereo or window switches. Be sure to replace your alternator before it's too late. Price includes a refundable $275.28 core charge
Show More Show Less
Genuine BMW - Corporate Logo
T#:7466485
Part#: 12317542934KT
Ships in 2 Business Days
$ 2,283.99 USD
Free Shipping
$ 2,283.99 USD
Free Shipping
Is your vehicle taking longer than usual to start up? Are your wiper blades running slowly? Are your head lights dim? Is the radio cutting out? These are pretty good signs that your alternator is going bad. Replace it before you get stranded and save yourself the inconvenience. Price includes a $150.00 core charge
Show More Show Less


Genuine BMW - Corporate Logo
T#:39012
Part#: 12317575346
Ships in 2 Business Days
6% off MSRP $ 145.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 136.99 USD
Free Shipping
6% off MSRP
$ 145.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 136.99 USD
Free Shipping


Genuine BMW Pulley - 230A
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5 X5,E71 X6,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63,S63

Show More Show Less
Genuine BMW - Corporate Logo
T#:375796
Part#: 12317836592KT
Ships in 2 Business Days
$ 1,843.99 USD
Free Shipping
$ 1,843.99 USD
Free Shipping
This is a OEM BMW remanufactured 170 amp alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an Original Equipment Alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested prior to and during remanufacturing to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

A $50 core charge is included in the price. Upon receipt of your rebuildable alternator core, you will be refunded the core charge. 

This item fits the following BMWs:
2006-2010  E60 BMW  M5
2006-2010  E63 BMW  M6
Show More Show Less