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

Elring Ultimate Valve Cover Gasket Kit

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T#:379299

Part#: 11129070990KT

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$ 45.99 USD

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Maintaining optimal engine oil levels is crucial for peak performance in your BMW. Leaks can occur between oil change intervals, leading to dangerously low oil levels. The valve cover is a frequent culprit for such leaks due to gasket degradation from years of exposure to temperature fluctuations. Replace your valve cover to ensure the retention of engine oil within your vehicle.

Key benefits of replacing the valve cover include:

Preventing oil leaks that could lead to low oil levels.
Preserving engine performance and longevity.
Avoiding potential engine damage from insufficient oil.

Ensure your BMW's engine operates smoothly by replacing the valve cover to contain the engine oil effectively.

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BMW M20 M50 M52 M54 Oil Pan Gasket - Elring

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T#:579621

Part#: 424.51

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$ 23.99 USD

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$ 23.99 USD

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Intake Manifold Gasket Set - E46 E39 E60 X3 X5 Z3 Z4 with M52TU or M5...

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T#:2859

Part#: 11611436631

In Stock

$ 32.99

This product was last offered at the strikethrough price on
08-04-2026

$ 32.95 USD

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This intake manifold gasket set fits BMW E46 323i 323ci 325i 325ci 325xi 330i 330ci 330xi - E39 528i 525i 530i -1999-2003 - E60 525i 525xi 530i 530xi 2004-2005 - X3 2.5i 3.0i - X5 3.0i - Z3 2.5i 2.8i 3.0i 1999-2002 - Z4 2.5i 3.0i 2003-2006.
With more than 100 years in the industry, Elring is one of the oldest names in the European autoparts segment. Delivering OE-quality you can rest assured the job will be done right the first time.

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
2001-2006 E46 BMW 325i 325ci 325xi only with M54 engine
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 Z4 BMW Z3 2.5i Z3 3.0i

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Supertech Upgraded Valve Stem Seal Kit - BMW S54 S52 S50 M54 M52 M50 ...

T#:641030

Part#: VS-VBM6-6CYLKT

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$ 27.99 USD

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Includes a full set of polyacrylic intake and viton exhaust valve stem seals! Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"

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Elring Crankshaft Seal (90 X 110 X 12)

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T#:402004

Part#: 11142249533

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$ 24.99 USD

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$ 24.99 USD

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Race German Fuel Injector Rebuild Kit - Bosch EV1 Style M20/M50/M52/S...

T#:6827858

Part#: RGBSCHEV1-6

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$ 40.00 USD

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$ 40.00 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. Have low fuel pressure or rough running engine? Have leaks or broken pintle caps? It may be time to rebuild your fuel injectors. This is an easy refresh kit with all the necessary parts to rebuild your BMW fuel injectors. This kit includes all filters, spacers, o-rings, and caps needed for your type of injector. *Includes fuel injector removal tool.

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Race German Fuel Injector Rebuild Kit - Bosch EV1 Style M20/M50/M52/S...

T#:6827863

Part#: RGBSCHEV1-6NT

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$ 25.00 USD

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$ 25.00 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. Have low fuel pressure or rough running engine? Have leaks or broken pintle caps? It may be time to rebuild your fuel injectors. This is an easy refresh kit with all the necessary parts to rebuild your BMW fuel injectors. This kit includes all filters, spacers, o-rings, and caps needed for your type of injector. *Does not include fuel injector removal tool.

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URO Ignition Coil - E31, E36, E38, E39, E46, E52, E53, Z3

For vehicles with production date up to 09/2002

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T#:361999

Part#: 12137599219

In Stock

$ 36.99

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

$ 33.99 USD

Limited Qty Sale

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$ 36.99

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

$ 33.99 USD

Limited Qty Sale

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Ignition coil for a quality OE replacement

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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$ 84.66 USD

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Standard bore - 45mm

Elring Valve Cover Gasket Set - M54 2.5L 3.0L (09/2002+)

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T#:362106

Part#: 11120030496

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$ 34.99 USD

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$ 34.99 USD

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If there is a large amount of oil on the sides of the engine or if you can smell burning oil, chances are it's a bad valve cover gasket. The gasket fails and allows oil to seep down onto the side of the engine and other parts causing a mess and reducing the amount of oil in your engine. This replacement gasket from Elring is perfect to prevent any further oil leaks.

Includes the following Seals:

Valve cover gasket
Spark plug seals

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
M54 2.5L 3.0L (09/2002+)

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URO Crankshaft Seal Kit for E39 and E46

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T#:38094318

Part#: 11141438274

Ships in 1-3 days

$ 122.02 USD

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$ 122.02 USD

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Whether addressing a leaking crankshaft seal or performing routine engine maintenance, the URO Crankshaft Seal delivers exceptional sealing performance

Oxygen Sensor - Priced Each

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T#:35863157

Part#: 11781742050

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$ 49.99 USD

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This direct fit oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8

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Valve Cover Gasket Kit - 318.590

For vehicles with production date up to 09/2002

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T#:41526368

Part#: 11129070990E

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$ 45.99 USD

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Elring Valve Cover Gasket Set – BMW P# 11129070990
Includes Outer Valve Cover Gasket, Spark Plug Tube Gaskets, and Cap Nut Grommets

Maintain proper engine sealing and eliminate common valve cover oil leaks with this complete Elring gasket set, trusted by professionals and enthusiasts alike. Designed for a precise fit on BMW engines, this kit includes everything needed for a comprehensive valve cover reseal:

Outer Valve Cover Gasket – Provides a tight seal between the cylinder head and valve cover

4 Spark Plug Tube Gaskets – Prevent oil from entering the spark plug wells and affecting ignition performance

15 Cap Nut Grommets – Replace worn grommets to restore proper bolt sealing and prevent oil seepage

Elring is a globally respected OE supplier, known for manufacturing gaskets that meet or exceed BMW’s factory specifications. Whether you're doing routine maintenance or addressing a visible oil leak, this kit ensures long-lasting results with no guesswork or missing pieces.

Fitment – Engineered for a direct replacement and worry-free installation on select BMW models.

Pro Tip: Always inspect the valve cover for cracks or warping before reinstalling. A clean sealing surface is critical for leak-free performance.

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Supertech Performance Exhaust Valve - BMW M50 M52

T#:640219

Part#: BMEVN-1030S

Ships in 8 Business Days

$ 29.99 USD

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Supertech valves are some of the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. These valves are hardened black nitrided, which is most popular in European and Japanese motors.

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SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 80lbs - ...

T#:26038568

Part#: SPRKH1000DBMST

In Stock at Vendor

20% off MSRP $ 1,042.99

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

$ 833.99 USD

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20% off MSRP

$ 1,042.99

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

$ 833.99 USD

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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.

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Elring Valve Cover Gasket Set - M52 2.5L 2.8L M54 2.5L 3.0L (09/1998-...

For vehicles with production date up to 09/2002

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T#:362105

Part#: 11129070990

In Stock

$ 31.50 USD

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$ 31.50 USD

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If there is a large amount of oil on the sides of the engine or if you can smell burning oil, chances are it's a bad valve cover gasket. The gasket fails and allows oil to seep down onto the side of the engine and other parts causing a mess and reducing the amount of oil in your engine. This replacement gasket from Elring is perfect to prevent any further oil leaks.

Includes the following Seals:

Valve cover gasket
Spark plug seals

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
M52 2.5L 2.8L (09/1998+)
M54 2.5L 3.0L (up to 09/2002)

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Athena Cut Ring Head Gasket - 84.5mm - BMW M50 M52 (84mm Bore) ...

T#:26171655

Part#: ATH-HG-CR-M50-84

Ships in 7 Business Days

$ 324.99 USD

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$ 324.99 USD

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Upgrade your BMW engine's performance with the Athena Cut Ring Head Gasket. This gasket replaces BMW part # 11121726619 and 11121726617 and is specifically designed for M50 & M52 iron block inline 6-cylinder engines found in E34/E36 chassis. Standard OEM & MLS gaskets can only handle a certain amount of cylinder pressure before they start to leak, making the Athena Cut Ring Head Gasket the recommended choice for applications making 16+ psi. A compression leak passing the head gasket can cause a range of issues, including engine overheating, loss of power, misfires, and in severe cases, catastrophic engine failure. Athena's gasket is crafted with premium quality reinforced M0115, an asbestos-free material that's original equipment approved and renowned for its superior quality. The AISI 304 stainless steel Cooper Rings bite into the aluminum head, providing maximum sealing capabilities around the cylinder bore and optimizing engine performance, even on engines with nitrous and/or turbo applications that exceed 2-bar boost. Before installation, it is crucial to have the mating surfaces of the cylinder head and block professionally cleaned and resurfaced to ensure they are completely flat. Please be aware that the gasket should have a size that is 0.5mm to 1mm larger than the piston. For example, if the piston measures 84mm, then the gasket should be the next size up, either 84.5mm or 85mm. Installation instructions: Make sure that the engine block and cylinder head surfaces are clean, flat, and free from any debris, oil, or coolant. Install the Cut Ring gasket on the engine block and ensure that it is properly aligned. Avoid twisting or bending the gasket during installation. Place the cylinder head on top of the gasket and install the head bolts or studs in their correct positions. Follow the manufacturer's recommended torque specifications and tighten the bolts or studs in the proper sequence to ensure even clamping force across the gasket. After the initial tightening, re-torque the head bolts or studs after the engine has been started and then allowed to cool to room temperature. This will ensure that the gasket is properly seated and compressed. It is recommended to not use any additional sealant on the MLS gasket, as it is already coated with a Viton rubber sealant. Using additional sealant can hinder the performance of the gasket.

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Race German S54 Vanos Rebuild Kit

T#:6843928

Part#: RGS54VNSK

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$ 47.99 USD

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$ 47.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. BMW introduced VANOS in the early 90s, and it added variable valve timing to the straight six engines. Over time the VANOS unit wears out which can cause error codes or VANOS rattle. Race German has sourced quality replacement parts in an easy kit. Seal Kit: 6 Orings 4 Sealing rings

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Hydraulic Alternator Belt Tensioner Assembly

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T#:396757

Part#: 11287838797

In Stock

$ 53.99 USD

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$ 53.99 USD

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

T#:362220

Part#: 11311432176

In Stock

$ 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

In Stock

$ 52.99 USD

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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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BMW M54 2.5L 3.0L Ultimate Valve Cover gasket Kit

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T#:379298

Part#: 11120030496KT

In Stock

$ 61.99 USD

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$ 61.99 USD

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High-Quality Valve Cover Replacement for BMW Vehicles

Ensure peak engine performance with this specially designed valve cover replacement crafted for BMW vehicles. Engineered to prevent oil leaks and maintain optimal oil levels between intervals, this valve cover is an indispensable safeguard for your engine.

Prevents oil leaks and maintains optimal oil levels
Durable materials ensure reliable protection against gasket degradation
Safeguards the engine from potential damage due to oil leaks

Don't compromise on engine health. Replace your valve cover today to keep your BMW running smoothly and efficiently.

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Camshaft Position Sensor - S54, S62

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T#:44461483

Part#: 13627796054

In Stock

$ 40.99 USD

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$ 40.99 USD

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Provides dependable performance, reliability, and value in one essential component.

Race German Fuel Injector Rebuild Kit - Siemens Style M54 (No Tool) ...

T#:6827878

Part#: RGSMNS6NT

In Stock

$ 29.99 USD

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$ 29.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. Have low fuel pressure or rough running engine? Have leaks or broken pintle caps? It may be time to rebuild your fuel injectors. This is an easy refresh kit with all the necessary parts to rebuild your M54 fuel injectors. This kit includes all filters, spacers, o-rings, and caps needed for your type of injector. *Does not include fuel injector removal tool.

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Iwis Timing Chain - Upper

T#:1196187

Part#: 11311432177S1

In Stock

$ 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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Elring Cylinder Head Bolt Set - E39, E46, E53

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T#:377047

Part#: 11121740065

In Stock

$ 43.56

This product was last offered at the strikethrough price on
08-12-2026

$ 34.99 USD

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Includes all head bolts in one cylinder head

URO Aluminum Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4 ...

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T#:340641

Part#: 11511436590

In Stock

$ 45.99 USD

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An upgrade over commonly failing plastic pulley

BMW N52 N44 VANOS Oil Feed Line

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T#:361997

Part#: 11361705532

Ships in 1-3 days

$ 35.01 USD

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$ 35.01 USD

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BMW N52 N44 VANOS Oil Feed Line is essential for ensuring reliable oil supply to the VANOS cam unit in your BMW. Manufactured by URO Parts, a leading name in the aftermarket automotive industry, this oil feed line is designed to meet the highest standards of quality and performance. Turner Motorsport offers this direct replacement component, crafted to ISO 9000 certification standards, ensuring long-lasting durability and seamless integration with your BMW's engine. With this high-quality oil feed line, you can maintain optimal engine performance and avoid potential issues related to insufficient oil flow.

Ensures reliable oil supply to the VANOS cam unit
Manufactured by URO Parts, a trusted name in the industry
Direct replacement for seamless installation
Meets ISO 9000 certification standards for quality
Supports optimal engine performance and longevity

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Race German Fuel Injector Rebuild Kit - Siemens Style M54

T#:6827877

Part#: RGSMNS6

In Stock

$ 47.99 USD

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$ 47.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. Have low fuel pressure or rough running engine? Have leaks or broken pintle caps? It may be time to rebuild your fuel injectors. This is an easy refresh kit with all the necessary parts to rebuild your M54 fuel injectors. This kit includes all filters, spacers, o-rings, and caps needed for your type of injector. *Includes fuel injector removal tool.

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Elring Cylinder Head Gasket - M52tu 2.5L 2.8L, M54 2.5L 3.0L ...

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T#:373977

Part#: 11127501304

In Stock

$ 54.99 USD

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$ 54.99 USD

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The head gasket is exposed to high pressure and heat for extremely long periods of time. Over a long period of time, these may develop a slight oil leak and must be replaced ASAP to prevent damage to the engine. It should also be replaced any time that the engine head is removed to ensure the best seal possible.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
M52 2.5L 2.8L, M54 2.5L 3.0L

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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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$ 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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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24 ...

T#:21604313

Part#: KPR-6S-7-24

Ships in 5 Business Days

$ 51.99 USD

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$ 51.99 USD

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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper is a precision-engineered component essential for securing valves in BMW engines. Turner Motorsport offers this high-quality valve keeper, designed to fit specific Supertech valves for enhanced performance and reliability.

Precision Fit: Designed specifically for BMW M42, M50, M52, and M54 engines, ensuring a perfect fit with 6.0mm single groove valves.
High-Quality Construction: Made from durable materials to withstand high-pressure conditions and provide long-lasting performance.
Enhanced Valve Security: Two keepers are required per valve to securely hold the valve in place, preventing movement and ensuring consistent engine performance.
Compatibility: Ideal for use with certain Supertech valves, providing a reliable solution for engine builds and upgrades.
Easy Installation: Simple to install with standard tools, offering a hassle-free upgrade or replacement option.

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Fuel Tank Breather Valve

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T#:591935

Part#: 13901433603

Ships in 1 Business Day

$ 49.99 USD

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Valve between charcoal canister and throttle body

URO Oil Filler Cap

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T#:6795781

Part#: 11127832157

Ships in 1 Business Day

$ 35.99 USD

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$ 35.99 USD

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Replace your damaged or missing oil cap. Great quality replacement that is manufactured to original equipment dimensions and guaranteed to fit. Stop leaking from damaged oil cap or seal.

URO Parts Engine Crankshaft Position Center - 12141709616 - E36, E46,...

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T#:52621857

Part#: 12141709616

In Stock

$ 25.99 USD

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$ 25.99 USD

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The URO Parts 020655 Crankshaft Position Sensor offers a cost-effective alternative to expensive OE components without sacrificing quality or longevity.

Water Pump Pulley

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T#:638798

Part#: 11517840403

Ships in 1 Business Day

$ 57.99 USD

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$ 57.99 USD

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5150 AutoSport S54 VANOS Hub

T#:35154980

Part#: 5150-VANOS

Back Ordered

$ 679.99 USD

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$ 679.99 USD

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Oil Filter Housing Cap

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T#:12151731

Part#: 11421744000

In Stock

$ 28.99 USD

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$ 28.99 USD

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Over time has the cap for your oil filter housing become harder to remove? Using the wrong tool can round the nut cast into the top of the cap, making removal harder each time. This oil filter housing fits cars with the M52, M54, or M56 engines. If you are looking for a more durable, easier-to-remove replacement, Turner Motorsport trusts ECS Tuning's Billet Aluminum Oil Filter Housing Caps

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407 Piece O-Ring Assortment

T#:1809147

Part#: W5202

In Stock at Vendor

$ 21.99 USD

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$ 21.99 USD

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Nitrile Butadiene Rubber

SuperTech Black Nitrided Exhaust Valve - +1mm Oversize - Set Of 12 -...

T#:11857222

Part#: BMEVN-1031S-12

Ships in 5 Business Days

$ 322.99 USD

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$ 322.99 USD

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Upgraded valves designed for high horsepower applications! Our valves are not finished from generic blanks rather they are specifically designed for each and every application. We work relentlessly, testing and researching every aspect trying to improve the air flow of our designs. With every valve design, we strive to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc. It’s unlikely you will find any of our competitor’s valves with stricter dimensional tolerances than our Supertech valves. Combine that with finished seats with equally strict run out tolerances and you won’t find a better sealing, better performing and easier to install solution anywhere! Optimum high flow rates are achieved by ensuring that our valves are manufactured with the best angles for each application. We consider back cut, under cut and valve head angles for each application to produce the optimum high flow rates for each application. In 2006 we introduced our stem Superfinishing as a standard addition to all of our valves at no additional cost. When our Superfinish is combined with our Black Nitrided valve, it reduces the surface roughness to 1/3 of our chrome coated valve. The end result… unsurpassed performance and durability. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for greater strength at higher temperatures. Black Nitride Coating: This is a hardening treatment that has been steadily growing in popularity over the last several years. These black Nitride coated valves feature harder surfaces and smoother finishes, providing less friction and subsequently longer life. Please see below for more benefits of our Black Nitride valves. Head Diam: 31.50mm Material: Black Nitride Groove Type: Single Groove Length: 105.65mm Stem Diam: 5.95mm Size: 1mm+

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URO Multi Purpose Relay - 61368384505

2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

T#:37858387

Part#: 61368384505

Ships in 1 Business Day

$ 34.99 USD

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$ 34.99 USD

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URO Multi Purpose Relay - 61368384505

URO Multi Purpose Relay - 61368384505 is the perfect replacement for a failed relay, restoring the proper electrical circuit performance in BMW vehicles. Designed as a direct-fit OE reproduction, this relay ensures a seamless plug-and-play installation, ensuring optimal function and reliability.

Replaces failed relays to restore proper electrical circuit operation
Direct-fit OE reproduction design for easy installation and compatibility
Manufactured using high-quality materials to resist heat, cold, and condensation
Modern electronics protect against electrical arcing and burnout for long-term durability
Factory tested to ensure proper performance and functionality
Backed by a 24-month unlimited mileage warranty

The URO Multi Purpose Relay is an essential component for maintaining the smooth electrical performance of BMW vehicles, ensuring long-lasting reliability and performance.

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Supertech Black Nitrided Exhaust Valve - Set Of 12 - BMW M50/M52/S50/...

T#:8549426

Part#: BMEVN-1030-12

In Stock at Vendor

20% off MSRP $ 403.99

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

$ 322.99 USD

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20% off MSRP

$ 403.99

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

$ 322.99 USD

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Upgraded valves designed for high horsepower applications! Our valves are not finished from generic blanks rather they are specifically designed for each and every application. We work relentlessly, testing and researching every aspect trying to improve the air flow of our designs. With every valve design, we strive to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc. It’s unlikely you will find any of our competitor’s valves with stricter dimensional tolerances than our Supertech valves. Combine that with finished seats with equally strict run out tolerances and you won’t find a better sealing, better performing and easier to install solution anywhere! Optimum high flow rates are achieved by ensuring that our valves are manufactured with the best angles for each application. We consider back cut, under cut and valve head angles for each application to produce the optimum high flow rates for each application. In 2006 we introduced our stem Superfinishing as a standard addition to all of our valves at no additional cost. When our Superfinish is combined with our Black Nitrided valve, it reduces the surface roughness to 1/3 of our chrome coated valve. The end result… unsurpassed performance and durability. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for greater strength at higher temperatures. Black Nitride Coating: This is a hardening treatment that has been steadily growing in popularity over the last several years. These black Nitride coated valves feature harder surfaces and smoother finishes, providing less friction and subsequently longer life. Please see below for more benefits of our Black Nitride valves. Black Nitride Coating Head Diam: 30.50mm Material: Black Nitride Groove Type: Triple Groove Length: 105.65mm Stem Diam: 5.95mm Size: Std

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Mechanical Alternator Belt Tensioner Assembly

2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

T#:371980

Part#: 11281427252

Ships in 1 Business Day

$ 50.99 USD

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$ 50.99 USD

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Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller.

3/8" Dr. 5/8" Extended Spark Plug Socket

T#:2242226

Part#: W80533

Ships in 1 Business Day

$ 20.25 USD

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$ 20.25 USD

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Extended socket length reaches confined areas.

Performance Rod Bearing Kit - S54

Early Model S54 Engines up to 02/2003 production date

T#:26171617

Part#: 5150-HPRBK-S54-E

Back Ordered

$ 669.99 USD

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$ 669.99 USD

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Now one of 5150's best sellers has gotten even better! With a 5150 Autosports' complete High-Performance Rod Bearing Kit, you get all the parts you need to easily swap out the factory connecting rod bearing shells and bolts in one simple kit. 5150's S54 bearings are embraced by BMW engine builders worldwide. Popular for both forced induction and N/A builds, their coated bearings are "friction resistant" making thermal breakdowns that can occur due to lack of lubrication a much less common occurrence. Helping to prevent premature engine failures on street cars, and spun bearings under stress at the track when things are most critical. Proven by customers to help you finish the race even with loss of oil pressure! Kit includes: (1) Complete set of ARP S54 Connecting Rod Bolts (1) Complete set of 5150 High Performance Rod Bearing Set (1) ARP Assembly Lubricant packet Tech Notes: As with all bearings, please check your tolerances and size before installation. Due to the specialized tools needed, professional install recommended. There are no returns available on any engine bearings.

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Piston Ring Comp 3-1/2" to 7"

T#:2242223

Part#: W80573

Ships in 1 Business Day

$ 22.99 USD

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$ 22.99 USD

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Use to install pistons on most passenger cars and truck engines

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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$ 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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SuperTech Black Nitrided Exhaust Valve - +1mm Oversize - Single Valv...

T#:640986

Part#: BMEVN-1031S

Ships in 8 Business Days

$ 23.99 USD

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Qty

$ 23.99 USD

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Upgraded valves designed for high horsepower applications! Our valves are not finished from generic blanks rather they are specifically designed for each and every application. We work relentlessly, testing and researching every aspect trying to improve the air flow of our designs. With every valve design, we strive to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc. It’s unlikely you will find any of our competitor’s valves with stricter dimensional tolerances than our Supertech valves. Combine that with finished seats with equally strict run out tolerances and you won’t find a better sealing, better performing and easier to install solution anywhere! Optimum high flow rates are achieved by ensuring that our valves are manufactured with the best angles for each application. We consider back cut, under cut and valve head angles for each application to produce the optimum high flow rates for each application. In 2006 we introduced our stem Superfinishing as a standard addition to all of our valves at no additional cost. When our Superfinish is combined with our Black Nitrided valve, it reduces the surface roughness to 1/3 of our chrome coated valve. The end result… unsurpassed performance and durability. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for greater strength at higher temperatures. Black Nitride Coating: This is a hardening treatment that has been steadily growing in popularity over the last several years. These black Nitride coated valves feature harder surfaces and smoother finishes, providing less friction and subsequently longer life. Please see below for more benefits of our Black Nitride valves. Head Diam: 31.50mm Material: Black Nitride Groove Type: Single Groove Length: 105.65mm Stem Diam: 5.95mm Size: 1mm+

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Supertech Performance Intake Valve - BMW M50 M52

T#:302459

Part#: BMIVN-1030

Ships in 8 Business Days

$ 32.99 USD

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$ 32.99 USD

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Supertech valves are some of the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. These valves are hardened black nitrided, which is most popular in European and Japanese motors.

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Leak Detection Pump

2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

T#:15445597

Part#: 16136756440

In Stock

$ 153.99 USD

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$ 153.99 USD

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Leak detection pump tests fuel containment system for vapor leaks to atmosphere. Failed pump often turns on check engine light.

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URO Multi Purpose Relay - 61368384505

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