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

Oil Level Sensor - E46 E39 E60 E38 X3 X5 Z3 Z4 Z8

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T#:395203

Part#: 12617508003

In Stock

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

$ 45.49 USD

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This is the oil level sensor / sender for BMW E46 E39 E60 E38 X3 X5 Z3 Z4 Z8.When this part fails it will illuminate a check light on the dash which indicates it needs to be replaced. Includes o-ring. This item fits the following BMWs: 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi M3 2008+ E90 BMW 335d 1999-2003 E39 BMW 528i 525i 530i M5 1998-2003 E39 BMW 540i 2004-2005 E60 BMW 525i 530i 1998-2001 E38 BMW 740i 740il 750il 2004-2006 E85 BMW X3 2.5i X3 3.0i 2000-2006 E53 BMW X5 3.0i 2000-2003 E53 BMW X5 4.4i X5 4.6is 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe 2003-2006 Z4 BMW Z4 2.5i Z4 3.0i 2000-2003 E52 BMW Z8

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Aluminum Valve Cover - M52 M54

For vehicles with production date up to 09/2002

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T#:19329477

Part#: 11121432928M

In Stock

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11-07-2026

$ 242.19 USD

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Tired of dealing with plastic valve covers that crank and split, causing frustrating oil leaks? This upgraded aluminum valve cover is the perfect solution!

Bav Auto Spark Plug Socket 12" x 5/8"

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T#:580385

Part#: B8800072

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$ 27.29 USD

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Magnetic insert holds the spark plug securely in place for easy installation. Works great on many twin can engines where the spark plugs are recessed deep in the cylinder head.

OEM Hengst Fuel Filter - E46 M3, Z3 S54

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T#:582298

Part#: 13327831089

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$ 29.99 USD

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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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Bav Auto Fuel Level Sensor & Fuel Pump Lock Ring Tool - BMW & MINI ...

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T#:580400

Part#: B8800089

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11-07-2026

$ 67.49 USD

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Used to remove fuel level and fuel pump lock rings properly to avoid damage.

E46 M54 - Aluminum Valve Cover

For vehicles with a production date from 09/2002+

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T#:14916007

Part#: 127512839M

In Stock

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11-07-2026

$ 319.89 USD

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Replace your factory plastic valve cover with this durable aluminum replacement from Bremmen Parts!

Bremmen "Cold Climate" Crankcase Pressure Regulator Valve Kit - BMW M...

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T#:2528129

Part#: 11617533400S1

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$ 79.09 USD

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BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. Don't forget to order a valve cover gasket, throttle body gasket, and a new intake boot to make your separator change easier and more comprehensive.

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Bremmen Crankshaft Position Sensor - E36 E46 E39 E60 X3 X5 Z3 Z4 ...

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T#:640146

Part#: 12141709616

Ships on Jan 11, 2027

Sale - Save 30% $ 40.99

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11-07-2026

$ 28.69 USD

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This is the crank shaft 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 Bremmen sensor to restore peak performance.

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Hengst Fuel Filter with Pressure Regulator - E46 Z3

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T#:596584

Part#: 13327512019

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$ 75.99 USD

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Bav Auto Timing Chain Tensioner Tool

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T#:580357

Part#: B8800030

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$ 30.79 USD

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Vital when servicing the timing system.

Timing Chain - Lower

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T#:5470993

Part#: 11311432176

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$ 25.19 USD

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The timing chain in your vehicle keeps the pistons and cylinders aligned and running in sync.

Fuel Pump - E46 M3

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T#:584116

Part#: 16142229684

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

$ 178.49 USD

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This is the in-tank fuel pump for the E46 M3. The fuel pump in your vehicle is essential for delivering the proper amount of fuel at the correct pressure. Usually, they fail unexpectedly and at the worst possible time. Replace yours to prevent being stranded with a broken fuel pump. This fuel pump installs easily in the place of your broken or worn pump. All wiring connections are the same to make this an easy plug and play installation. Don't take a chance on an inferior fuel pump from the local auto store that may leave you stranded again. Choose a quality unit to ensure thousands of worry free miles. Includes seal.

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Camshaft Position Sensor - E46 M3, Z4M, Z3M S54

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T#:36913379

Part#: 12147539171

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$ 64.39 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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Fuel Tank Breather Valve - 13907831770

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T#:37655984

Part#: 13907831770

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$ 58.09 USD

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Over time, valves can fail, often getting stuck in one position and causing the engine to run poorly. This Fuel Tank Breather Valve is a simple replacement that resolves rough idling and helps clear engine codes, restoring smooth performance.

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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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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.

Mechanical A/C Belt Tensioner Assembly

For vehicles with production date up to 09/2002

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T#:26305100

Part#: 11281433571

In Stock

Sale - Save 25% $ 60.99

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

$ 45.74 USD

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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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Bremmen Oil Separator Kit - Level 1 - E39 E46 E83 Z3 Z4

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T#:641646

Part#: 11617501566S1

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Sale - Save 30% $ 97.99

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

$ 68.59 USD

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BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. Level 1 kit includes the following; Oil separator Hose from oil separator to dipstick tube Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold

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Iwis Timing Chain - Upper

T#:1196187

Part#: 11311432177S1

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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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Bav Auto Torx head bolt socket - E12

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T#:580351

Part#: B8800022

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$ 23.09 USD

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This special long, thin, Torx socket is required for removal and installation of the head bolts on most BMWs with twin-cam cylinder heads. 1/2" drive

Leak Detection Pump - Priced Each

For vehicles with production date from 09/2001

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T#:35121140

Part#: 16137193479

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$ 50.24 USD

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OEM Hengst Engine Oil Filter Kit - Pack of 5 - M52 M54

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T#:586192

Part#: 11427512300HKT

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$ 54.99

This product was last offered at the strikethrough price on
10-13-2026

$ 38.99 USD

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Stock up on oil filters and save some cash! You are going to need them, why not get a discount? This is an OEM Hengst oil filter kit made with the same materials and design as the original oil filter used in BMW dealers (but at a better price!). The kit includes the oil filter, housing cap o-ring, and washer.

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Crankcase Vent Hose

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T#:30629661

Part#: 11157831311

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$ 22.39 USD

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Borescope Camera with Light For Phone

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T#:32450134

Part#: PHONEBORESCOPE

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$ 59.16 USD

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The Borescope Inspection Camera offers 1920P HD resolution, a flexible 7.9mm probe, and a 16.4ft semi-rigid cable, making it ideal for inspecting hard-to-reach areas. Easily connect to IOS and Android devices, and use the IP67 waterproof probe for various applications, including automotive, plumbing, and home inspections.

Key Features:

1920P HD Resolution: Capture clear images and high-quality video at 1920x1440 resolution.
Easy Connection: Connect quickly to IOS 9.0+ and Android 7+ devices via the 'SUP-ANESOK' app.
Semi-Rigid Cable: 16.4ft cable offers a mix of flexibility and rigidity for precise inspections.
Waterproof Probe: IP67-rated, capable of operating underwater up to 3.28 feet for 1 hour.
Wide Applications: Suitable for automotive, plumbing, and home inspections, with adjustable brightness for low-light environments.

Includes:

Borescope Camera
Android Adapter
Lightning Port Adapter
USB Type-C Connector
16.4 ft. Semi-Rigid Cable
Magnet
Hook
Mirror
Protective Cap
Manual

WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

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Bav Auto Crankshaft Pulley Holding Tool

For Dual-VANOS "TU" Engines Only

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T#:580404

Part#: B8800094

Ships on Jan 29, 2027

Sale - Save 10% $ 184.99

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

$ 166.49 USD

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Bav Auto's Crankshaft Pulley Holding Tool enables you to remove your crankshaft nut/bolt with ease - we recommend this tool if you intend on replacing timing chains, oil pump chains, leaking crankshaft seals, etc.

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Bremmen Cylinder Head Valve Cover - E39 E46 E53 Z3 (M52 M54) ...

For vehicles with production date up to 09/2002

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T#:3657913

Part#: 11121432928

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$ 186.19 USD

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OEM quality replacement valve cover and gasket for a damaged or cracked valve cover.

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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Bavarian Autosport Crankshaft Holding Tool - BMW

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T#:580450

Part#: B8800145

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Sale - Save 20% $ 79.99

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11-07-2026

$ 63.99 USD

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Makes removal of crankshaft hub nut/bolt much easier. A must-have for replacing timing chains, oil pump chains, leaking crankshaft seals and more.

Bremmen Fuel Pump Assembly

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T#:554618

Part#: 16146766942

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Sale - Save 30% $ 148.99

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11-07-2026

$ 104.29 USD

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Ensure optimal fuel delivery for your BMW with a replacement fuel pump. This essential component guarantees the right fuel amount at the correct pressure, preventing unexpected failures.

Mechanical A/C Belt Tensioner Assembly

For vehicles with production date from 09/2002

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T#:32350880

Part#: 11287512758

In Stock

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11-07-2026

$ 37.09 USD

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Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4

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T#:640145

Part#: 12147518628

Ships on Dec 16, 2026

Sale - Save 20% $ 32.99

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11-07-2026

$ 26.39 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 drivability issues

Engine Crankcase Breather Element

Superior performance for both warm and cold climates

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T#:35795496

Part#: 11617533400

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$ 41.99 USD

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Commonly referred to as the "oil separator" or PCV URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts.

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Aluminum Valve Cover

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T#:46753497

Part#: 11127838754

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Sale - Save 24% $ 549.99

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

$ 419.99 USD

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$ 549.99

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$ 419.99 USD

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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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OMP Battery Cut Off Switch / Kill Switch

T#:1614

Part#: EA-462

Back Ordered

$ 65.00 USD

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$ 65.00 USD

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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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Hydraulic Alternator Belt Tensioner Assembly

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T#:55030822

Part#: 11287838797

In Stock

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11-07-2026

$ 47.99 USD

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Bav Auto VANOS Camshaft Timing Tool Set

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T#:580355

Part#: B8800027

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Sale - Save 3% $ 364.99

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

$ 354.04 USD

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Allows you to set timing after Vanos service.

Bav Auto Ratcheting Serpentine Belt Wrench Kit

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T#:580390

Part#: B8800077

Ships on Jan 29, 2027

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

$ 62.99 USD

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Used to retract your serpentine belt tensioner. This kit includes 18mm, 5/8 in, 14mm, 13mm, 12mm, sockets and 3/8 in and 1/4 in drive adapters

Active Autowerke Rotrex Traction Fluid - 1 Liter

T#:57616348

Part#: RTF-1L

Ships in 3 Business Days

7% off MSRP $ 140.00

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

$ 130.00 USD

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7% off MSRP

$ 140.00

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

$ 130.00 USD

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Rotrex superchargers utilize a unique traction drive system that sets it apart from other centrifugal-style superchargers. For best performance, Rotrex recommends replacing this fluid every 50,000 miles. This bottle of traction fluid is plenty enough for one supercharger service (typically 750ml).

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Active Autowerke - S54 Supercharger Kit (Level 1) - E46 M3 (Manual Tr...

For vehicles with 6 speed transmissions

T#:397296

Part#: 12-023

Ships in 10 Business Days

5% off MSRP $ 11,249.00

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

$ 10,686.99 USD

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$ 11,249.00

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$ 10,686.99 USD

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Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. This supercharger kit will produce 525 horsepower and 335 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit.

Kit features:

Rotrex 92 trim supercharger running 7 PSI of boost
Supercharger bracket, pulleys, & belt
Self-contained oiling system with front-mount oil cooler
6 high-flow fuel injectors
Colder heat range spark plugs
Active Autowerke Generation 7 intake manifold with dual bypass valve
Front mount air-to-air intercooler
Active Autowerke air filter
Active Autowerke dyno-tuned software
All mounting hardware, plumbing, hoses, & clamps
Illustrated instruction manual & installation guide
2 year warranty with free tech support

Performance Specs:

Power : 525 BHP @ 7650 rpm
Torque : 335 ft/lbs @ 5400 rpm
Boost Level : 7-8 psi

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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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Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46

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T#:640147

Part#: 11611432559

In Stock

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

$ 16.79 USD

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Crankcase Vent Hose - From Valve Cover to Oil Separator - Fit BMWs with the M52 or M54 6 cylinder engine

OEM Hengst Engine Oil Filter Kit - M52 M54

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5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

T#:568200

Part#: 11427512300

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$ 10.99

This product was last offered at the strikethrough price on
10-12-2026

$ 7.67 USD

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$ 7.67 USD

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This is an OEM Hengst oil filter kit made with the same materials and design as the original oil filter used in BMW dealers (but at a better price!). The kit includes the oil filter, housing cap o-ring, and washer.

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Bremmen Engine Oil Drain Plug - Includes Seal - BMW B38 B48 B46 B58 ...

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T#:640158

Part#: 11137535106

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11-07-2026

$ 4.17 USD

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$ 4.17 USD

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Reduce chances of an oil leak when changing your vehicle's motor oil with a new drain plug and seal!

Mini Screw Clamp

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T#:367185

Part#: 21014

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$ 3.99 USD

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$ 3.99 USD

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Ideal for low pressure hoses. This hose clamp could be used on many vehicles for many different purposes.

Vacuum Control Valve

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T#:47850818

Part#: 11747810831

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11-07-2026

$ 19.59 USD

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Lower Timing Chain Tensioner

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T#:5470988

Part#: 11311703717

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

$ 12.59 USD

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Guide used to tension the timing chain This item fits the following BMW Chassis: E34,E36,E39,E46,E53 X5,E83 X3,E85 Fits BMW Engines including: M50,M52,M54,M56,S52

OEM Hengst Engine Oil Filter Kit - S50 3.0L, S52 S54 3.2L

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5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

T#:568562

Part#: 11427833769

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$ 17.99

This product was last offered at the strikethrough price on
10-12-2026

$ 14.99 USD

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$ 14.99 USD

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This is an OEM Hengst oil filter kit made with the same materials and design as the original oil filter used in BMW dealers (but at a better price!). The kit includes the oil filter, housing cap o-ring, and washer.

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Bremmen Valve Cover SEcuring Nut - BMW M50 M52 S50 S52 M54

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T#:640161

Part#: 11121738607

Ships in 4 Business Days

Sale - Save 43% $ 4.99

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

$ 2.85 USD

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$ 4.99

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Ever lose one of these or round one off while working on your car? This is the nut used to hold the valve cover to the cylinder head. These usually need to be replaced after being removed more than once, as the rubber grommet will crush.. Sold Individually.

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OEM Hengst Fuel Filter - E34 530i/540i, E36 325i/328i/M3, Z3, E38 740...

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5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

T#:388256

Part#: 13321740985

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$ 16.99

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

$ 16.49 USD

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$ 16.49 USD

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A must for any tune-up and the source for a lot of engine issues, including: hard starting, hesitations, lean mixture faults, misfire faults, and stallings. The fuel filter is easy to change and it's recommended to replace it every 30-40,000 miles. This is an OEM Hengst filter.

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