BMW Engine Parts for BMW 3 Series E46 (1999-2005)

Piston Ring Set - Priced Each - M50 M52 Engines

T#:598529

Part#: 11251437077

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$ 38.99

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

$ 34.99 USD

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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 Connecting Rod Bearing Set

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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Standard bore - 45mm

OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60

T#:362220

Part#: 11311432176

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$ 84.99 USD

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$ 84.99 USD

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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.

Oil Pump Chain - E36 E46 E34 E39 Z3 Z4

T#:14529

Part#: 11417576915

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$ 52.99 USD

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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 Timing Chain - Upper

T#:1196187

Part#: 11311432177S1

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$ 40.86 USD

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$ 40.86 USD

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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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Fuel Filter - E46 M3 & Z3 S54 3.2L Engine

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

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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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OEM Mahle Fuel Filter - E34 E36 E46 Z3 Z4

T#:367343

Part#: 13321740985

Ships in 1 Business Day

$ 46.05

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

$ 35.28 USD

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$ 35.28 USD

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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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Oil Pump Chain - E46 M3, Z3M Z4M with S54 engine

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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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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Timing Chain - Upper

T#:362341

Part#: 11311432177

In Stock

$ 45.92

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

$ 37.99 USD

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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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Hitachi Camshaft Position Sensor - Intake - BMW M52TU M54

T#:48850072

Part#: 12147539165

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$ 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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Iwis Timing Chain (Double Row) - E46 Z3 Z4

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

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$ 121.99 USD

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Mahle Oil Filter Kit - E36, E39, E46, E53, E60, E61, E83, Z3, Z4 (M52...

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

Glyco Connecting Rod Bushing

T#:374292

Part#: 11241278209

Ships in 1 Business Day

$ 6.11 USD

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$ 6.11 USD

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Press fit into small journal of connecting rod

General Purpose Clamp - Priced Each

T#:594670

Part#: 64218367179

Ships in 1 Business Day

$ 2.99 USD

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$ 2.99 USD

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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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Hitachi Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...

T#:48850055

Part#: 12147518628

Ships in 2 Business Days

$ 71.99 USD

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$ 71.99 USD

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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 Ignition Coil - 12131712219 - E46, E39, E60, E63 E64 6 Series...

For vehicles with production date up to 06/2009

T#:48815451

Part#: 12131712219

Ships in 6 Business Days

$ 57.99 USD

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Get your spark back with new ignition coils.

Hitachi Ignition Coil With Spark Plug Connector - BMW N54 N55 N62 N63...

T#:48850063

Part#: 12138657273

Ships in 6 Business Days

$ 53.99 USD

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Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code, but not always a check engine light. A misfire code may be related to an ignition coil, but could be from other things as well. 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 OEM Oil Filter for E46 M3, MZ3, MZ4 (S50 3.0L, S52 3.2L, S54 3....

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

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$ 15.47 USD

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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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M50/M52/M54 Beru Racing Spark Plug

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

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Sale - Save 17%

$ 23.99

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

Starting at $ 20.00 USD

Add to Wish List

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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Spark Plug Boot - Priced Each

T#:596875

Part#: 12131730412

Back Ordered

$ 15.99 USD

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$ 15.99 USD

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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 Crankshaft Position Sensor - BMW M52 S52 M54

T#:48815470

Part#: 12141709616

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$ 32.99 USD

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$ 32.99 USD

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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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BMW Engine Parts for BMW 3 Series E46 (1999-2005)

Sub-Categories

Piston Ring Set - Priced Each - M50 M52 Engines

Key Benefits:

Glyco Connecting Rod Bearing Set

OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60

Oil Pump Chain - E36 E46 E34 E39 Z3 Z4

Iwis Timing Chain - Upper

Fuel Filter - E46 M3 & Z3 S54 3.2L Engine

OEM Mahle Fuel Filter - E34 E36 E46 Z3 Z4

Oil Pump Chain - E46 M3, Z3M Z4M with S54 engine

Timing Chain - Upper

Hitachi Camshaft Position Sensor - Intake - BMW M52TU M54

Iwis Timing Chain (Double Row) - E46 Z3 Z4

Mahle Oil Filter Kit - E36, E39, E46, E53, E60, E61, E83, Z3, Z4 (M52...

Glyco Connecting Rod Bushing

General Purpose Clamp - Priced Each

Hitachi Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...

Hitachi Ignition Coil - 12131712219 - E46, E39, E60, E63 E64 6 Series...

Hitachi Ignition Coil With Spark Plug Connector - BMW N54 N55 N62 N63...

Mahle OEM Oil Filter for E46 M3, MZ3, MZ4 (S50 3.0L, S52 3.2L, S54 3....

M50/M52/M54 Beru Racing Spark Plug

Spark Plug Boot - Priced Each

Hitachi Crankshaft Position Sensor - BMW M52 S52 M54

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