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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OEM Starter Motor - E46 M3 2001-2006
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Valeo - Corporate Logo
T#:2988
Part#: 12417835735
Ships in 1 Business Day
$ 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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Iwis - Corporate Logo
T#:362220
Part#: 11311432176
In Stock
$ 84.99 USD
Free Shipping on orders $49 and up
IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.
Iwis - Corporate Logo
T#:14529
Part#: 11417576915
In Stock
$ 52.99 USD
Free Shipping on orders $49 and up
This is an OEM oil pump chain for BMW's with the M50/M52/M54/S50/S52 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998 E36 BMW 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 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 Z3 BMW M Roadster M Coupe
2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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Iwis - Corporate Logo
T#:1196187
Part#: 11311432177S1
In Stock
$ 40.86 USD
Free Shipping on orders $49 and up
The timing chain in any vehicle can begin to stretch and rattle over time. This is a common issue, and though BMW says it is a lifetime part, most enthusiasts decide to change them. If you need only the timing chain instead of a kit, ECS Tuning has your replacement.
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Mishimoto - Corporate Logo
T#:597051
Part#: MMOCCLA
In Stock
$ 127.99 USD
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$ 127.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto - Corporate Logo
T#:380389
Part#: MMOCF-BMW
In Stock
$ 88.99 USD
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$ 88.99 USD
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Install a custom oil cooler on your street or track BMW with help from the Mishimoto Oil Line Fitting Kit! This kit has 100% CNC-machined components, including the 6061 aluminum oil line fittings and the 303 stainless steel tie-down plate. This adapter kit is applicable for BMW E36 (Euro oil-housing equipped), E46, and E90 vehicles, and allows for the use of -10AN fittings to route oil to a custom oil cooler setup. This is an ideal upgrade for drivers seeking additional cooling for track environments or for those who would like additional engine bay space for an oil accumulator or supercharger setup. Included in this kit are two stock BMW O-rings for leak-free installation. Features: Allows for use of -10AN fittings for custom oil cooler setup 100% CNC-machined components, including 6061 aluminum fittings and 303 stainless steel tie-down plate Includes durable stock BMW O-rings for leak-free installation Provides additional engine bay space for applications with an oil accumulator or supercharger setup Included as part of the Mishimoto BMW E46 M3 Oil Cooler Kit Mishimoto Lifetime Warranty Included: (1) Stainless Steel Fitting Clamp (2) -10AN Fittings (2) BMW Oil O-rings (1) M8 x 1.25 x 25mm Button-Head Bolt Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov. ​
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Atlantic Automotive Engineering - Corporate Logo
T#:45757458
Part#: 32427830838
Back Ordered
$ 50.99

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

$ 44.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 50.99

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

$ 44.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
A new power steering pulley is key to keeping your steering system smooth and reliable. Over time, pulleys can warp, crack, or wear, causing belt slippage, whining noises, or even pump failure. Installing a fresh pulley restores correct belt alignment, eliminates noise, and maintains consistent hydraulic pressure for precise, effortless steering. Why choose a new pulley? Smooth operation – Ensures proper belt tension for dependable pump performance. Noise reduction – Eliminates squealing, whining, or vibration from worn pulleys. System protection – Protects the pump and steering components from damage. Install a new pulley and keep your steering system running quietly, efficiently, and confidently.
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Iwis - Corporate Logo
T#:34869
Part#: 11411401399
Ships in 1 Business Day
$ 30.29

This product was last offered at the strikethrough price on
06-19-2026

$ 27.53 USD
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$ 27.53 USD
Free Shipping on orders $49 and up
This is an OEM oil pump chain for BMW's with the S54 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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Mishimoto - Corporate Logo
T#:372557
Part#: MMOCCCF
In Stock
$ 162.99 USD
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$ 162.99 USD
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Universal kit with a catch can and rubber hose; for retrofitting on a variety of vehicles. Carbon fiber catch can prevents a harmful buildup of oil inside of the turbocharger, intake manifold, intercooler and piping. Separates oil particles from PCV/CCV air Defends intercooler, intake system, and essential components from oil blow-by Made from lightweight carbon fiber Compact design makes for easy engine bay placement Checking fluid levels made easy with built in sight tube Comes complete with mounting bracket, hose, all necessary clamps, fittings, and mounting hardware Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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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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Iwis - Corporate Logo
T#:362341
Part#: 11311432177
In Stock
$ 45.92

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

$ 37.99 USD
Free Shipping on orders $49 and up
$ 37.99 USD
Free Shipping on orders $49 and up
This is the upper timing chain that connects the 2 camshaft sprockets on cars with the M50, M52, M54, S50 or S52 engines. If you need the lower timing chain that connects the crankshaft to the upper sprocket you can find it  Here . 

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998  E36 BMW  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 
2004-2006  E83 BMW  X3 2.5i X3 3.0i
2000-2006  E53 BMW  X5 3.0i
1997-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1997-2000  Z3 BMW  Z3 M Roadster M Coupe
2003-2005  E85 BMW  Z4 2.5i Z4 3.0i 
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OMP - Corporate Logo
T#:1614
Part#: EA-462
Back Ordered
$ 65.00 USD
Free Shipping
$ 65.00 USD
Free Shipping
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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Mishimoto Universal 10 Row Oil Cooler
For custom applications only. Not a direct bolt on.
Mishimoto - Corporate Logo
T#:378421
Part#: MMOCU
In Stock
$ 410.99 USD
Free Shipping
$ 410.99 USD
Free Shipping
This universal oil cooler from Mishimoto is far superior to the factory unit with its 11" x 2.76" x 1.97" core. Even under optimum driving conditions increased oil temperatures will cause a drop in pressure and will decrease the ability for your engine to be properly lubricated. With this new oil cooler, you can keep your oil temperatures down for optimum driving conditions. The kit includes 4 feet of stainless braided line, adapter fittings, and oil filter sandwich adapter. Mishimoto Automotive is a leading manufacturer of aftermarket performance cooling products. The company was established back in 2003 with one goal. That goal was to provide customers with quality cooling system upgrades that work on the track and on the road. At Mishimoto, you never have to worry about the quality of the product you are installing. This kit is universal and is not a direct bolt on. *For custom applications only. Not a direct bolt on. WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto - Corporate Logo
T#:23020165
Part#: MMBCC-CBTWO
In Stock
$ 160.99 USD
Free Shipping on orders $49 and up

Optimize your vehicle's performance and shield crucial components with the Mishimoto Compact 2-Port Baffled Oil Catch Can. This innovative solution effectively separates oil particles from PCV/CCV air using a 50-micron bronze filter, ensuring defense against oil blow-by for your intercooler, intake system, and vital parts. Constructed with a patented billet 6061 aluminum can sealed with Viton™ O-Rings, this catch can guarantees both durability and effectiveness.

Equipped with a universal mounting bracket, it allows adaptable installation and comes complete with two CNC-machined aluminum 1/2" barbed hose fittings. With an enhanced 3 oz internal capacity, service intervals are prolonged, while its fully serviceable filter and can ensure enduring functionality.

Engineered for safety in pressurized applications, the internal air diverter enhances oil separation by amplifying air turbulence. Available in black, red, or polished finishes, this catch can preserves proper octane levels, reducing potential detonation and promoting extended engine life.

The product package includes the Compact 2-Port Baffled Oil Catch Can, two Aluminum 1/2" Barbed Fittings, and a Universal Mounting Bracket, all backed by the Mishimoto Lifetime Warranty.

WARNING! Prop 65 may apply to this product.

Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California.

Prop 65 mandates listing any chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm.

For more information about California Prop 65 warning, visit: www.P65Warnings.ca.gov.

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Mishimoto 19 Row Universal Oil Cooler
For custom applications only. Not a direct bolt on.
Mishimoto - Corporate Logo
T#:378414
Part#: MMOCUL
In Stock at Vendor
9% off MSRP $ 531.00

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

$ 482.99 USD
Free Shipping
9% off MSRP
$ 531.00

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

$ 482.99 USD
Free Shipping
Even under optimum driving conditions increased oil temperatures will cause a drop in pressure and will decrease the ability for your engine to be properly lubricated. With this new oil cooler, you can keep your oil temperatures down for optimum driving conditions. The kit includes four-feet of stainless braided line, adapter fittings, and oil filter sandwich adapter. Rows: 19 Overall Dimensions: 13" x 5.5" x 2" Core Dimensions: 11.25" x 5.5" x 2" Braided Hoses: 4ft .75 inch & 4ft 9 inch Braided Hose Fittings: -10AN Sandwich Plate Fittings: -10AN WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Hitachi - Corporate Logo
T#:48850072
Part#: 12147539165
In Stock
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up
A bad cam sensor can cause a variety of problems from hard starting to stalling at low speeds. Cam sensor replacement has been known to cure many drivabilty issues. Uses O-ring # 12 141 748 398 (not included)
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Mishimoto - Corporate Logo
T#:363342
Part#: MMOCE4601
Ships in 1 Business Day
9% off MSRP $ 990.00

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

$ 899.99 USD
9% off MSRP
$ 990.00

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

$ 899.99 USD
The S54 is an incredible feat of engineering. Smooth power delivery, individual throttle bodies, and an 8,000 rpm redline make for an unforgettable driving experience. As with any BMW, maintaining optimal oil temperatures is key to extending the life of your vehicle and ensuring that you're getting an unparalleled driving experience. As many of these vehicles see frequent track time, the team at Mishimoto decided to develop a performance oil cooler kit that would provide improved durability and deliver the power needed for track driving. The result: an extremely efficient core with a proven 30°F (16.7°C) drop in oil temperature. With an increase in core thickness of 110%, this oil cooler kit raises your oil capacity by 0.44 qt. The oil cooler end tanks, cast from a single piece of aluminum and TIG-welded to the core, have been designed for maximum reliability, giving you the confidence you need to push your E46 M3 to the limits.
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Mishimoto - Corporate Logo
T#:51075072
Part#: MMIG-BMW-0206
Ships in 3 Business Days
$ 184.99 USD
Free Shipping on orders $49 and up
The Mishimoto Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.

Iwis - Corporate Logo
T#:596635
Part#: 11317830869
Ships in 1 Business Day
$ 204.99

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

$ 121.99 USD
Free Shipping on orders $49 and up
$ 121.99 USD
Free Shipping on orders $49 and up
Valeo - Corporate Logo
T#:371896
Part#: 12317501599
Ships on Dec 8, 2026
$ 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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Mishimoto Essentials Bundle - MMB-E46-002 - E46
For vehicles with manual transmission
Mishimoto - Corporate Logo
T#:51039991
Part#: MMB-E46-002
Ships in 3 Business Days
$ 1,127.99 USD
$ 1,127.99 USD
Don’t let a plastic cooling system stand between you and the road.

Mishimoto - Corporate Logo
T#:51075071
Part#: MMIG-BMW-0706
Ships in 3 Business Days
$ 204.99 USD
Free Shipping on orders $49 and up
The Mishimoto Ignition Coil focuses on durability and electrical precision.
Mishimoto - Corporate Logo
T#:51075078
Part#: MMIG-BMW-0204
Ships in 3 Business Days
$ 123.99 USD
Free Shipping on orders $49 and up
The Mishimoto BMW Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.


Mishimoto - Corporate Logo
T#:51075067
Part#: MMIG-BMW-1108
Ships in 3 Business Days
$ 274.99 USD
Free Shipping on orders $49 and up
The Mishimoto Ignition Coil (MMIC-BMW-11B) focuses on durability and electrical precision.
Mishimoto - Corporate Logo
T#:51110138
Part#: MMIG-BMW-07
Ships in 3 Business Days
$ 41.99 USD
Free Shipping on orders $49 and up
Mishimoto’s Delphi-style ignition coils offer a premium solution for BMW owners looking to replace worn-out factory units.
Hitachi - Corporate Logo
T#:48850055
Part#: 12147518628
Ships in 2 Business Days
$ 71.99 USD
Free Shipping on orders $49 and up
The camshaft position sensor is essential for assisting the engine DME by monitoring the camshaft's position. The data from this sensor is key to optimizing ignition timing and ensuring smooth engine performance. Often referred to as the CMP sensor, this component is crucial for the overall functionality of the powertrain. A failing camshaft position sensor can cause a range of issues, including engine stumbling, hesitation during acceleration, power loss, and even starting difficulties or complete failure to start.
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Mishimoto - Corporate Logo
T#:51075090
Part#: MMIG-BMW-02
Ships in 3 Business Days
$ 72.99 USD
Free Shipping on orders $49 and up
The Mishimoto BMW Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.

Hitachi - Corporate Logo
T#:48815451
Part#: 12131712219
Ships in 6 Business Days
$ 57.99 USD
Free Shipping on orders $49 and up
$ 57.99 USD
Free Shipping on orders $49 and up
Get your spark back with new ignition coils.
Hitachi - Corporate Logo
T#:48850063
Part#: 12138657273
Ships in 6 Business Days
$ 53.99 USD
Free Shipping on orders $49 and up
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. ometimes, 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.
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Hitachi - Corporate Logo
T#:48815470
Part#: 12141709616
Back Ordered
$ 32.99 USD
Free Shipping on orders $49 and up
NOTE: Does not include o-ring seal - see BMW # 12141748398 This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.
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