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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Eldor - Corporate Logo
T#:641259
Part#: 12138657273
In Stock
$ 34.99 USD
Free Shipping on orders $49 and up
Used in a wide variety of BMW engines to ensure proper spark plug operation.
Eldor - Corporate Logo
T#:29234309
Part#: 12138616153
In Stock
$ 43.99 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. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

This is the current replacement for some BMW 6 and 8-cylinder engines built in the late 2000s and after. BMW has made numerous changes to ignition coil part numbers in recent years but has approved this part number to work in the vehicles listed below. It's listed as a replacement coil for N20, N55, and S55 engines. In March 2015 BMW approved it for N51/N52 engines. This part number replaces the previous BMW part number 12137594937 for the cars listed below.

Sold per coil. Includes boot and connector.

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Lemforder - Corporate Logo
T#:378218
Part#: 11812283798
In Stock
$ 99.99 USD
Free Shipping
$ 99.99 USD
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OEM Lemförder motor mounts are the perfect replacement to prevent vibrations and knocks from continuing.

Mahle - Corporate Logo
T#:598529
Part#: 11251437077
In Stock
$ 38.99

This product was last offered at the strikethrough price on
10-27-2026

$ 34.99 USD
Free Shipping on orders $49 and up
$ 34.99 USD
Free Shipping on orders $49 and up

Ensure optimal engine performance in your BMW M50 M52 Engines with Turner Motorsport's Mahle Piston Ring Set. Over time, worn piston rings can lead to power loss, increased oil consumption, and white smoke from the tailpipe. When rebuilding your BMW's engine, replacing the piston rings is essential for restoring power and efficiency. Each set is priced individually, with six sets required for complete engine overhaul.

Key Benefits:

  • Restores engine power and efficiency
  • Reduces oil consumption
  • Prevents white smoke from the tailpipe
  • Compatible with M50 M52 Engines
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Glyco - Corporate Logo
T#:375825
Part#: 11241284849
Ships in 1 Business Day
$ 92.02

This product was last offered at the strikethrough price on
07-15-2026

$ 84.66 USD
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$ 84.66 USD
Free Shipping on orders $49 and up
Standard bore - 45mm
Mahle - Corporate Logo
T#:403354
Part#: 13327831089
Ships in 1 Business Day
$ 84.05

This product was last offered at the strikethrough price on
10-27-2026

$ 76.26 USD
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$ 76.26 USD
Free Shipping on orders $49 and up

Ensure optimal fuel delivery for your BMW's engine with the Turner Motorsport Fuel Filter for E46 M3 & Z3 S54 3.2L Engine. Over time, fuel filters can become clogged, hindering the engine's ability to receive sufficient fuel. This can lead to various fuel-related issues such as surging, stalling, cold start problems, and decreased performance. Replacing the fuel filter with a fresh one helps address these issues and ensures smooth engine operation under various conditions.

Benefits:

  • Improves fuel delivery to the engine
  • Addresses fuel-related problems such as surging and stalling
  • Enhances cold start performance
  • Maintains engine performance under various driving conditions
  • Recommended replacement every 60,000 miles, or more frequently in regions with poor fuel quality
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Mahle - Corporate Logo
T#:367343
Part#: 13321740985
Ships in 2 Business Days
$ 46.05

This product was last offered at the strikethrough price on
07-02-2026

$ 35.28 USD
Free Shipping on orders $49 and up
$ 35.28 USD
Free Shipping on orders $49 and up

This is an OEM MAHLE fuel filter that removes dirt and other particle contaminants from your fuel.

A clogged fuel filter makes it difficult for your engine to get all the fueling it needs. Filters commonly clog from a deteriorating gas tank, bad fuel, or other debris in the fuel system. A fresh fuel filter addresses many fuel related problems including surging, stalling, cold start issues, and poor performance under a variety of conditions.

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Glyco - Corporate Logo
T#:375823
Part#: 11211706847
Ships in 1-3 days
$ 136.06

This product was last offered at the strikethrough price on
07-15-2026

$ 125.73 USD
Free Shipping
$ 125.73 USD
Free Shipping
Standard bore

Glyco - Corporate Logo
T#:375824
Part#: 11211706850
In Stock at Vendor
$ 126.61

This product was last offered at the strikethrough price on
07-15-2026

$ 119.33 USD
Free Shipping
$ 119.33 USD
Free Shipping
59.75MM(+0.25) bore

Hitachi - Corporate Logo
T#:48850072
Part#: 12147539165
In Stock
$ 41.99 USD
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$ 41.99 USD
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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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Glyco - Corporate Logo
T#:374671
Part#: 11211706848
Ships in 1-2 days
$ 194.32 USD
Free Shipping
$ 194.32 USD
Free Shipping
Standard bore
Mahle - Corporate Logo
T#:341049
Part#: 11427512300
Ships in 1 Business Day
$ 22.38

This product was last offered at the strikethrough price on
05-20-2026

$ 16.98 USD
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$ 16.98 USD
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OE quailty for your BMW


Lemforder - Corporate Logo
T#:399290
Part#: 22116779970
Ships in 2 Business Days
$ 70.87

This product was last offered at the strikethrough price on
07-09-2026

$ 70.26 USD
Free Shipping on orders $49 and up
$ 70.26 USD
Free Shipping on orders $49 and up

Don't neglect your motor mounts! Most stock BMW motor mounts are fluid filled and the stiffness of the mount depends on this fluid. But over time the fluid leaks out and the strength of the mount is greatly reduced. A worn motor mount allows the engine to twist and shift around. The harder you're driving the more shift will occur. As the engine is moving around it can contact other parts in the engine bay - usually cooling related. The mechanical fan can hit the radiator; the A/C compressor can hit a radiator hose, the exhaust will flex and may break. Twisting of the engine can also lead to shifting problems as the transmission twists with it. There are countless issues related to worn or compressed motor mounts so don't overlook these as a regular replacement item (every 50,000 miles).

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

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

This item fits the following BMW Chassis:
E46
Non-M
E85 Z4 2.5i/3.0i/3.0si
E89 Z4 3.0si

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Glyco - Corporate Logo
T#:374292
Part#: 11241278209
Ships in 1 Business Day
$ 6.11 USD
Free Shipping on orders $49 and up
Press fit into small journal of connecting rod
Norma - Corporate Logo
T#:594670
Part#: 64218367179
Ships in 1 Business Day
$ 2.99 USD
Free Shipping on orders $49 and up
Clamps are like bolts and nuts, as you can never have enough of them. If you do work on your vehicle in your home, you are going to need clamps often. If you need one clamp, why not get a few to ensure that you are always prepared.
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Vaico - Corporate Logo
T#:57231520
Part#: 07119901299
In Stock
New Item
$ 2.99 USD
Free Shipping on orders $49 and up
M8x16

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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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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Mahle - Corporate Logo
T#:4405
Part#: 11427833769ML
Ships in 1 Business Day
$ 16.99

This product was last offered at the strikethrough price on
07-23-2026

$ 15.47 USD
Free Shipping on orders $49 and up
$ 15.47 USD
Free Shipping on orders $49 and up
This is the replacement OEM oil filter kit for the S54 engine, as used in the E46 M3, Z4 M Roadster and M Coupe, as well as the 2001-2002 MZ3 M Roadster/Coupe (with S54 engine). This is the complete oil filter kit - filter, large o-ring for filter housing cover, small o-ring for bolt seal, flat washer for bolt, and copper seal ring for the drain bolt. It's everything you would need to complete an oil change - minus the Castrol 10W60 oil of course, which we sell at a great price. This kit is manufactured by Mahle - the original supplier to BMW for the 11427833769 BMW filter (factory filters come with the Mahle part number OX 187 printed on the cap).

Why Mahle over Mann? In the past we have sold a few different oil filters for the E46 M3 and S54 engines. But Mahle is the true OEM supplier for this part number. It fits perfectly and is the exact replacement part at nearly the same price as the slightly different Mann filter (and less than the factory BMW filter). For more detail, click here.

This filter fits the following BMWs:
2001-2006 E46 M3
2001-2002 MZ3 - M Roadster & M Coupe (S54)
2006-2008 MZ4 - M Roadster & M Coupe
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Beru - Corporate Logo
T#:338884
Part#: FGR-6DDU
Back Ordered
Sale - Save 17% $ 23.99

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

Starting at $ 20.00 USD
Free Shipping on orders $49 and up
Sale - Save 17%
$ 23.99

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

Starting at $ 20.00 USD
Free Shipping on orders $49 and up
RACING SPARK PLUG FOR M50/M52/M54 ENGINES
These spark plugs are recommended by BMW Motorsport for use in their DTC racing engines. We find a slight horsepower increase and greatly increased durability over the OEM road car spark plugs in competition use. We attribute the improvements to the fact that these spark plugs are designed for the high temperatures and cylinder pressures encountered in a racing engine. These spark plugs are a direct replacement and come pre-gapped just like the factory road car plugs.
Please note: these plugs are not for the S54 engine in the E46 M3, MZ3, or Z4 M
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Mahle - Corporate Logo
T#:367338
Part#: 13327512019
Special Order: No Guaranteed ETA
$ 70.37 USD
Free Shipping
$ 70.37 USD
Free Shipping

This is an OEM MAHLE fuel filter that removes dirt and other particle contaminants from your fuel.

A clogged fuel filter makes it difficult for your engine to get all the fueling it needs. Filters commonly clog from a deteriorating gas tank, bad fuel, or other debris in the fuel system. A fresh fuel filter addresses many fuel related problems including surging, stalling, cold start issues, and poor performance under a variety of conditions.

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Beru - Corporate Logo
T#:596875
Part#: 12131730412
Back Ordered
$ 15.99 USD
Free Shipping on orders $49 and up
Sometimes a bad coil may just be a broken or damaged connector boot. This is especially true on cars with a leaking valve cover gasket where the oil has contamintated the rubber boot and the electrical parts inside. This boot can be replaced on its own without having to buy a whole new coil. This part is also useful if you purchased a coil that did not come with a new boot.
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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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Glyco - Corporate Logo
T#:374670
Part#: 11211706849
Back Ordered
$ 172.99 USD
Free Shipping
$ 172.99 USD
Free Shipping
Standard bore
Glyco - Corporate Logo
T#:374672
Part#: 11211706852
Back Ordered
$ 108.99 USD
Free Shipping
$ 108.99 USD
Free Shipping
59.75MM(+0.25) bore