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BMW Engine Parts

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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N54 & E8x/E9x N55 Mosselman Billet Oil Thermostat
For Gasket/Install kit see T#4799665
Mosselman Turbosystems - Corporate Logo
T#:4621131
Part#: OTN54.T85
In Stock
$ 379.99 USD
Free Shipping
$ 379.99 USD
Free Shipping
The N54 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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OEM Valeo Alternator - 180amp - E9X M3 S65
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377508
Part#: 12317837981
In Stock
$ 630.99

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

$ 404.99 USD
Free Shipping
$ 404.99 USD
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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!
OEM Starter Motor - E46 M3 2001-2006
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:2988
Part#: 12417835735
In Stock
$ 400.99

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

$ 293.99 USD
Free Shipping
$ 293.99 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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Voltage Regulator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594108
Part#: 12317603775
Ships in 1 Business Day
$ 71.22

This product was last offered at the strikethrough price on
05-04-2026

$ 70.45 USD
Free Shipping on orders $49 and up
$ 70.45 USD
Free Shipping on orders $49 and up
Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

BMW S55 Upgrade Turbocharger Set, MSL65-80
Available for the BMW F8x (M2 Competition, M3 and M4)
Mosselman Turbosystems - Corporate Logo
T#:12872412
Part#: 10210019
In Stock
2% off MSRP $ 5,098.00

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

$ 4,978.00 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 5,098.00

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

$ 4,978.00 USD
Free Shipping on orders $49 and up
Mosselman BMW S55 Upgrade Turbocharger Set, MSL65-80 (~ 650-800hp)
MSD Performance - Corporate Logo
T#:31324148
Part#: 8239KT2KT
In Stock
$ 268.99 USD
Free Shipping on orders $49 and up

MSD Performance Coil Pack for MINI

Before ordering, check whether you need round or flat pin connectors for your MINI's coil pack. The type of pin is determined by the connectors that link the coil to the wiring harness. To check, slide the red locking tab to the right, press down on the tab, and pull the connector off the coil. Examine the pins to see if they are flat or round. Reattach the connector by pushing it back on until it clicks, then slide the red locking tab back to the locked position.

This high-performance coil pack is a popular upgrade among MINI owners looking to enhance their vehicle's performance over the stock coil. The installation requires removing the factory bolts from the old coil and modifying the MSD factory sleeves by drilling out 1/16" to fit the stock bolts.

Kits Include:

  • MSD Coil Pack
  • MSD Wire Set - Red
  • Inductance: 7mH
  • Maximum Voltage: 36,000 Volts
  • Primary Resistance: 0.51 OHMs
  • Secondary Resistance: 12K OHMs
  • Turns Ratio: 77:1

Key Benefits:

  • Upgraded performance over stock coil pack
  • Enhances ignition efficiency and engine performance
  • High voltage output of 36,000 volts for stronger sparks
  • Low primary resistance of 0.51 OHMs for efficient energy transfer
  • High secondary resistance of 12K OHMs for improved performance
  • Durable construction for long-lasting use
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OEM Valeo Alternator - E60 M5, E63/64 M6
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:14835
Part#: 12317836592
Ships in 4 Business Days
$ 358.99 USD
Free Shipping
$ 358.99 USD
Free Shipping

This is a Valeo brand new 170 amp alternator. These 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 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 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.

No core charge!

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

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Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:1196078
Part#: 12318510090
Ships in 1 Business Day
$ 91.37 USD
Free Shipping on orders $49 and up
$ 91.37 USD
Free Shipping on orders $49 and up
OEM replacement for you BMW alternator fixing charging issues

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

$ 466.99 USD
Free Shipping
$ 466.99 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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Mosselman Turbosystems - Corporate Logo
T#:37183641
Part#: 030210062BLK
Ships on Sep 9, 2026
$ 459.00 USD
Free Shipping on orders $49 and up
The S55 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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MSD Performance - Corporate Logo
T#:15777320
Part#: 32879
In Stock
11% off MSRP $ 152.99

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

$ 135.99 USD
Free Shipping on orders $49 and up
11% off MSRP
$ 152.99

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

$ 135.99 USD
Free Shipping on orders $49 and up

Revitalize your Mini's performance with these spark plug wires and boots, designed to restore power and ensure smooth engine operation. Replace them at 60,000-mile intervals to maintain optimal performance. If you experience low spark or misfires and it's not due to the coil or spark plugs, faulty wires may be the culprit. Don't let rust buildup hinder performance—replace these wires to ensure happy motoring and reliable spark.

  • Restores power and performance to your Mini
  • Recommended replacement at 60,000-mile intervals
  • Addresses issues such as low spark and misfires
  • Prevents rust buildup for consistent spark delivery
  • Includes plug wires for cylinder 1
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Sunex - Corporate Logo
T#:391150
Part#: SUU884506
In Stock
9% off MSRP $ 31.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 31.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
3/8" drive socket with 5/8" opening for most spark plugs


Alternator - 150 Amp - Valeo
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:579634
Part#: 439590
In Stock
$ 620.35

This product was last offered at the strikethrough price on
05-03-2026

$ 518.99 USD
Limited Qty Sale
Free Shipping
$ 620.35

This product was last offered at the strikethrough price on
05-03-2026

$ 518.99 USD
Limited Qty Sale
Free Shipping
Autel - Corporate Logo
T#:2914116
Part#: AL329
Ships in 1 Business Day
$ 49.99 USD
Free Shipping on orders $49 and up
OBDII Code Reader
Valeo New Alternator - 80 Amp - E34, E36
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377737
Part#: 12311744564
In Stock at Vendor
$ 549.99

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

$ 533.99 USD
Free Shipping
$ 533.99 USD
Free Shipping
Brand new unit with no core charge

OEM Valeo Alternator - 185 amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:376244
Part#: 12317525376
Ships in 1 Business Day
$ 730.23

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

$ 673.90 USD
Free Shipping
$ 673.90 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.

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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Valeo Brand New Alternator - E89 Z4 M Coupe/Roadster
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:379218
Part#: 12317837691KT
Ships in 5 Business Days
$ 378.99 USD
Free Shipping
$ 378.99 USD
Free Shipping

This is a brand new Valeo 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 Valeo 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 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. 

No core charge!

Fits the following BMW Chassis:

E89 BMW Z4 M Coupe, M Roadster

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Alternator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594101
Part#: 12318570672
In Stock at Vendor
$ 1,094.99

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

$ 1,062.99 USD
Free Shipping on orders $49 and up
$ 1,062.99 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo

Valeo - Corporate Logo
T#:594588
Part#: 12417616502
In Stock
$ 265.76 USD
Free Shipping
$ 265.76 USD
Free Shipping
Brand new unit - no core charge! Avoid messing with a core return entirely!
Mosselman Turbosystems - Corporate Logo
T#:12872415
Part#: 10210020
Ships in 6 Business Days
$ 5,378.00 USD
Free Shipping on orders $49 and up
This Mossleman upgraded turbocharger will bring reliable high performance to your S58 engine! Depending on modifications done to the vehicle, this turbo can deliver up to 950hp!

OEM Valeo New Alternator - 230amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:383432
Part#: 12317603782
Ships on Sep 16, 2026
$ 730.99 USD
Free Shipping
$ 730.99 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.

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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Valeo New Alternator - 230 Amp - E71, F01, F02
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:579635
Part#: 439640
Ships on Sep 16, 2026
$ 590.99 USD
Free Shipping
$ 590.99 USD
Free Shipping
New Replacement Alternator From Valeo - 12317603781
Mosselman Turbosystems - Corporate Logo
T#:37183640
Part#: 030210063RED
Special Order: No Guaranteed ETA
$ 459.00 USD
Free Shipping on orders $49 and up
The S55 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
Show More Show Less
OEM Valeo Alternator - E60 E63 E65 550i 650i 750i
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:379446
Part#: 12317542935KT
Ships in 5 Business Days
$ 444.99 USD
Free Shipping
$ 444.99 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.

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!

For vehicles with production date from 03/2005.

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Valeo - Corporate Logo
T#:371896
Part#: 12317501599
In Stock
$ 323.99 USD
Free Shipping
$ 323.99 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.

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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OEM Valeo Starter (New)
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:380773
Part#: 12417835737
Back Ordered
$ 593.99 USD
Free Shipping
$ 593.99 USD
Free Shipping
A failed starter will leave even the best-maintained BMW stranded. Replace your failed starter motor with this brand new replacement from Valeo. Valeo is an OEM BMW supplier - save money and by quality parts by buying them in a different  box!                          
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Valeo Alternator - 180 Amp - E70
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377914
Part#: 12317561004
Ships in 5 Business Days
$ 482.99 USD
Free Shipping
$ 482.99 USD
Free Shipping
Brand new unit with no core charge.

Alternator - 220 Amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594099
Part#: 12317560989
Ships on Sep 9, 2026
$ 574.96 USD
Free Shipping
$ 574.96 USD
Free Shipping
Replacement Alternator from Valeo

Mosselman Turbosystems - Corporate Logo
T#:44359934
Part#: 010210013
In Stock
Sale - Save 5% $ 2,518.00

This product was last offered at the strikethrough price on
05-03-2026

$ 2,392.10 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 2,518.00

This product was last offered at the strikethrough price on
05-03-2026

$ 2,392.10 USD
Free Shipping on orders $49 and up
The Mosselman Upgrade Turbocharger (MSL38-50) for the N20 PWG engine increases performance levels with proven reliability. Depending on the modifications done to the car and fuel type, this turbo set can deliver up to 500hp!
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Alternator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594100
Part#: 12317561002
In Stock at Vendor
$ 794.99

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

$ 771.99 USD
Free Shipping
$ 771.99 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.
Show More Show Less

Valeo Alternator - E53
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377182
Part#: 12317540994
In Stock
$ 384.99 USD
Free Shipping
$ 384.99 USD
Free Shipping
Restore charging system voltage with a new alternator
Autel - Corporate Logo
T#:2914136
Part#: MSULTRA
Ships in 6 Business Days
$ 12,306.99 USD
Free Shipping on orders $49 and up
The MaxiSys Ultra is Autel’s most ambitious diagnostics tablet designed to maximize technician intelligence.

Alternator - 220 Amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:639716
Part#: 12317804266
In Stock at Vendor
$ 822.99

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

$ 799.99 USD
Free Shipping
$ 799.99 USD
Free Shipping

Mosselman Turbosystems - Corporate Logo
T#:12872408
Part#: 10210018
Ships in 6 Business Days
$ 3,719.00 USD
Free Shipping on orders $49 and up
This plug and play turbocharger set from Mosselman is precision made to boost your power reliably for your N54 engine. Depending on the modifications done to the car, you could see up to 650hp!
Mosselman BMW N55 EWG Upgrade Turbocharger, MSL48-60
For vehicles with Electronic Wastegate
Mosselman Turbosystems - Corporate Logo
T#:12872410
Part#: 10210014
Ships in 6 Business Days
$ 3,524.99 USD
Free Shipping on orders $49 and up
This Mossleman upgraded turbocharger will bring reliable high performance to your N55 EWG engine! Depending on modifications done to the vehicle, this turbo can deliver up to 600hp!
Mosselman BMW N55 PWG Upgrade Turbocharger, MSL48-60
For vehicles with Pneumatic Wastegate
Mosselman Turbosystems - Corporate Logo
T#:12872411
Part#: 10201016
Ships in 6 Business Days
$ 3,239.00 USD
Free Shipping on orders $49 and up
This Mossleman upgraded turbocharger will bring reliable high performance to your N55 PWG engine! Depending on modifications done to the vehicle, this turbo can deliver up to 600hp!


Mosselman Turbosystems - Corporate Logo
T#:12872407
Part#: 10210017
Ships in 6 Business Days
$ 3,719.00 USD
Free Shipping on orders $49 and up
This plug and play turbocharger set from Mosselman is precision made to boost your power reliably for your N54 engine. Depending on the modifications done to the car, you could see up to 650hp!
Remanufactured Alternator - 170A
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594098
Part#: 12317802929
Ships on Sep 9, 2026
$ 541.55 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo
MINI N14 N18 Alternator - 120 Amp 439617
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:28803228
Part#: 12317619254
Ships on Sep 16, 2026
$ 374.99 USD
Free Shipping on orders $49 and up

MINI N14 N18 Alternator is an essential component for powering the electrical system of your Mini. Engineered to provide reliable performance, this alternator ensures your Mini stays running smoothly. Upgrade your Mini with this genuine alternator for dependable power generation.

  • Powers the electrical system
  • Reliable performance
  • Ensures smooth operation
  • Genuine Mini part
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Mosselman Turbosystems - Corporate Logo
T#:40207515
Part#: 010210011
Special Order: No Guaranteed ETA
$ 2,518.00 USD
$ 2,518.00 USD
The Mosselman Upgrade Turbocharger (MSL38-50) for the N20 EWG engine increases performance levels with proven reliability. Depending on the modifications done to the car and fuel type, this turbo set can deliver up to 500hp!
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Alternator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594102
Part#: 12311247288
Back Ordered
$ 547.99

This product was last offered at the strikethrough price on
05-08-2026

$ 389.23 USD
Free Shipping on orders $49 and up
$ 389.23 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo