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

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.
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OEM Starter Motor - E46 M3 2001-2006
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Valeo - Corporate Logo
T#:2988
Part#: 12417835735
Ships in 2 Business Days
$ 389.99 USD
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$ 389.99 USD
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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe
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Rein - Corporate Logo
T#:370783
Part#: 11131437237
In Stock
$ 28.99 USD
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Metal / Rubber gasket
Rein - Corporate Logo
T#:379190
Part#: 11617504535K
Ships in 2 Business Days
$ 79.99 USD
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$ 79.99 USD
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Turner Motorsport presents the Crankcase Ventilation System Refresh Kit for BMW owners experiencing malfunctioning or aged CCV systems. This comprehensive kit includes all necessary hoses to complete a refresh, ensuring optimal performance and reliability for your BMW's CCV system.

  • Addresses malfunctioning CCV systems
  • Ensures proper ventilation of the crankcase
  • Comprehensive kit includes all necessary hoses
  • Restores performance and reliability
  • Compatible with various BMW models
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Atlantic Automotive Engineering - Corporate Logo
T#:45757458
Part#: 32427830838
Back Ordered
$ 50.99

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

$ 44.99 USD
Limited Qty Sale
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$ 50.99

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

$ 44.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
A new power steering pulley is key to keeping your steering system smooth and reliable. Over time, pulleys can warp, crack, or wear, causing belt slippage, whining noises, or even pump failure. Installing a fresh pulley restores correct belt alignment, eliminates noise, and maintains consistent hydraulic pressure for precise, effortless steering. Why choose a new pulley? Smooth operation – Ensures proper belt tension for dependable pump performance. Noise reduction – Eliminates squealing, whining, or vibration from worn pulleys. System protection – Protects the pump and steering components from damage. Install a new pulley and keep your steering system running quietly, efficiently, and confidently.
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Rein - Corporate Logo
T#:361056
Part#: 11142249533
In Stock at Vendor
$ 22.99 USD
Free Shipping on orders $49 and up
Rein Rear Crankshaft Seal for many BMW models is an OE-equivalent replacement for the rear main oil seal. When the seal fails, oil drips onto the driveway and can reach the clutch surface. Replacing it during a clutch job is the practical time to do it, since the transmission is already out.
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Rein - Corporate Logo
T#:591711
Part#: 11511436590
In Stock
$ 50.99

This product was last offered at the strikethrough price on
10-22-2026

$ 46.99 USD
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$ 46.99 USD
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A common failing piece due to the plastic design.

E46 M3, MZ3 S54 OEM Valeo Alternator (New)
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Valeo - Corporate Logo
T#:377735
Part#: 12317831436
In Stock at Vendor
$ 522.00

This product was last offered at the strikethrough price on
07-16-2026

$ 473.99 USD
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$ 473.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Rein - Corporate Logo
T#:4471
Part#: 11361705532
Ships on Dec 1, 2026
$ 61.99

This product was last offered at the strikethrough price on
06-04-2026

$ 53.99 USD
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$ 53.99 USD
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This oil pipe hose runs from the VAN0S adjusting unit to the oil filter housing. At some point the rubber line shrinks or cracks and oil can weep out of the swedge fittings. The fittings at the banjo bolts can also leak so replacing the seals for each banjo fitting is strongly recommended.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3 3.2
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
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
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i
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Rein M52 M54 Upper Oil Separator Vent Tube (CCV) - 11617504535 - E46,...
For vehicles with production date from 01/2000
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:378292
Part#: 11617504535
In Stock
$ 22.99 USD
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$ 22.99 USD
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Runs from the top of the oil separator up to intake manifold.

Rein - Corporate Logo
T#:599655
Part#: 11127512839
Ships in 4 Business Days
$ 399.99 USD
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$ 399.99 USD
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Rein - Corporate Logo
T#:53750207
Part#: PKP0124
In Stock
New Item
$ 41.99 USD
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$ 41.99 USD
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Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein
Rein - Corporate Logo
T#:379819
Part#: 11251437077
Ships in 4 Business Days
$ 31.99 USD
Free Shipping on orders $49 and up
Standard bore replacement piston rings


Rein M52 M54 Valve Cover Kit - 11121432928 - E46, E39 525i 528i 530i,...
For vehicles with production date up to 09/2002
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599656
Part#: 11121432928
In Stock
$ 233.99 USD
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$ 233.99 USD
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Eliminate oil and vacuum leaks with a brand new valve cover. This OEM Rein valve cover comes complete with sealing gaskets and engine cover mounts.
Rein Vent Hose - 11157513756 - E46 325i 325Ci
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594296
Part#: 11157513756
Ships in 4 Business Days
$ 35.75

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

$ 30.99 USD
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$ 30.99 USD
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Connects the intake manifold to the valve cover
Rein - Corporate Logo
T#:552486
Part#: 11617533399
Ships in 1-2 days
$ 35.99 USD
Free Shipping on orders $49 and up
Runs from the top of the oil separator up to rear of the intake manifold.

Rein Exhaust Valve - E34, E36, E39, E46, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379738
Part#: 11341739823
Ships on Dec 1, 2026
$ 20.99 USD
Free Shipping on orders $49 and up
Replacement exhaust valve

Valeo - Corporate Logo
T#:371896
Part#: 12317501599
Ships on Dec 8, 2026
$ 323.99 USD
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$ 323.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Aluminum Power Steering Pulley (Replaces BMW #32421740858)
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO Premium - Corporate Logo
T#:373238
Part#: 32421740858
In Stock
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up
Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock power steering pulley used on M52, M52tu, and M54 engines. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.
With more than 4,000 European vehicle replacement parts, URO is no stranger to the market. Superior metal stock and extremely strict quality control are at the forefront of URO’s agenda and it shows as they become the OE supplier for more and more car companies every single day.
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Rein - Corporate Logo
T#:38161721
Part#: 11237513862
Ships in 4 Business Days
$ 92.99 USD
Free Shipping on orders $49 and up
Rein - Corporate Logo
T#:6857
Part#: 11431740045
In Stock
$ 7.13 USD
Free Shipping on orders $49 and up
ENGINE O-RING 11431740045

Rein - Corporate Logo
T#:34181269
Part#: 11157831311
Back Ordered
$ 11.99 USD
Free Shipping on orders $49 and up

Crankcase Vent Hose ABV0329 is an essential component designed for BMW engines, ensuring optimal performance of the crankcase ventilation system. This high-quality vent hose plays a critical role in regulating and redirecting excess gases from the crankcase back into the engine's intake, reducing harmful emissions and preventing pressure buildup. Crankcase Vent Hose ABV0329 helps maintain engine efficiency and protects against potential damage caused by over-pressurization or oil leaks.

Made from durable, heat-resistant materials, this hose is built to withstand the high temperatures and pressures common in BMW engines. It is a direct-fit replacement, making installation simple and efficient for both professionals and DIY mechanics. Available from Turner Motorsport, Crankcase Vent Hose ABV0329 is the perfect solution for restoring and maintaining your BMW’s crankcase ventilation system.

Key Benefits:

  • Ensures proper crankcase ventilation for optimal engine performance
  • Reduces harmful emissions by redirecting excess gases into the intake
  • Prevents pressure buildup and protects against oil leaks
  • Constructed from durable, heat-resistant materials for long-lasting reliability
  • Direct-fit replacement, ensuring easy installation for various BMW models
  • Available from Turner Motorsport, a trusted source for BMW performance parts
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OEM Rein Magnetic Oil Drain Plug - M12x1.5 - BMW
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38890945
Part#: HWU1041
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
Metal drain plug featuring a magnet that traps ferrous metal suspended in your oil. These magnetic drain plugs trap tiny particles that are unable to be caught by your oil filter, leaving you with a cleaner engine, and over time, saving your bearings and oil pump from unneeded wear.
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Rein - Corporate Logo
T#:46478579
Part#: ABH0263
In Stock
$ 23.99 USD
Free Shipping on orders $49 and up
$ 23.99 USD
Free Shipping on orders $49 and up
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 this and all the other components of the oil separator system 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.
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Rein - Corporate Logo
T#:379717
Part#: 11121735533
In Stock
$ 9.67 USD
Free Shipping on orders $49 and up
12.7mm (+0.2mm)


Rein - Corporate Logo
T#:15159
Part#: 17222245358
In Stock
$ 4.99 USD
Free Shipping on orders $49 and up
This is the sealing o-ring used for many oil cooler kits on various BMW models. They're also a prime source for oil leaks because the o-ring gets 'flat' or shrinks or becomes damaged. These are usually easy to change though which puts an end to annoying small oil leaks.
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Oil Pressure Switch (fits most BMWs)
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:363
Part#: 12617568480
In Stock
$ 7.99

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

$ 5.39 USD
Free Shipping on orders $49 and up
$ 5.39 USD
Free Shipping on orders $49 and up
Having your oil pressure light come on can mean very serious problems. Or it could just be this switch that fails several times over a car's lifespan. By no means should you ignore the warning light but replacing this sensor could be the actual culprit. The other problem with this switch is that oil can leak past its seal. With the oil under a lot of pressure at this point, the oil loss can be a serious concern. It's a simple replacement when doing most oil change work.

This Oil Pressure Switch fits the following BMWs:
1985-1991 E30 318i, 318is, 325e, 325i, M3
1992-1999 E36 318i/is, 325i/is, 328i/is, 323is, M3
1992-1997 E31 840i, 850i
1988-1994 E32 735i, 735iL, 740i, 740iL
1989-1995 E34 525i, 530i, 535i, 540i, M5
1995-2001 E38 740i, 740iL, 750i, 750iL
1996-2002 Z3 Roadster/Coupe 1.9, 2.3, 2.5, 2.8, 3.0, 3.2
1997-2003 E39 525i, 528i, 530i, 540i, M5
1999-2005 E46 323, 325, 328, 330, M3
2000-2003 Z8 roadster
2001-2006 E53 X5 X5 3.0i, X5 4.4i, X5 4.6is, X5 4.8is
2002+ E65/E66 745i, 745li, 750i, 750li, 760i, B7 Alpina
2003+ Z4 Roadster/Coupe Z4 2.5, 3.0, 3.0si
2004+ E60 525i, 530i, 535i, 545i, 550i, M5
2005+ E63/E64 645Ci, 650i, M6
2005+ E83 X3 X3 2.5, X3 3.0
2006+ E90/E92 325, 328, 330, 335
2007+ E70 X5 X5 3.0i, X5 4.8i
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Rein M54 S54 O-Ring Seal - 12141748398 - E46, E39, E60, E83, E53 ...
Cam sensor - intake or exhaust side
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:12463
Part#: 12141748398
In Stock
$ 4.99

This product was last offered at the strikethrough price on
06-29-2026

$ 2.75 USD
Free Shipping on orders $49 and up
$ 2.75 USD
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This is the o-ring used for most BMW camshaft sensors and crankshaft sensors. Although most sensors that we sell come with this o-ring at no charge, they may be the source of oil or fluid leaks.

Rein Intake Valve - E36, E39, E46
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379707
Part#: 11341739822
Back Ordered
$ 15.99 USD
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$ 15.99 USD
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Replacement intake valve

Rein Return Pipe - 11617504536 - E46, E39, E60, E83, E53
For vehicles with production date from 09/1998 For vehicles with production date from 01/2000
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:375092
Part#: 11617504536
In Stock at Vendor
$ 19.99

This product was last offered at the strikethrough price on
10-22-2026

$ 13.99 USD
Free Shipping on orders $49 and up
$ 13.99 USD
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Runs from the intake manifold back to connecting hose
Rein - Corporate Logo
T#:384805
Part#: 11611440317
Ships in 4 Business Days
$ 20.30 USD
Free Shipping on orders $49 and up

Meistersatz Cylinder Head Bolt Kit - E34, E36, E39, Z3
For vehicles with production date up to 09/1998
Meistersatz - Corporate Logo
T#:1195780
Part#: 11121721938
Ships in 4 Business Days
$ 19.99 USD
Free Shipping on orders $49 and up
$ 19.99 USD
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Set of 14 stretch bolts for installing cylinder head
Rein Vibration Damper - 11231438995 - E36, E46, E39, E53
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38195378
Part#: 11231438995
Ships in 4 Business Days
$ 112.99 USD
Free Shipping on orders $49 and up

Rein - Corporate Logo
T#:17738379
Part#: 11421744000
Ships in 3 Business Days
$ 25.99 USD
Free Shipping on orders $49 and up
Rein's OE equivalent oil cap prevents moisture and debris from entering and contaminating the system.

Rein M52 M54 Cold Climate Crankcase Ventilation Dipstick Hose (CCV) -...
For use in cold climates
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:2879
Part#: 11157532629
In Stock at Vendor
$ 10.99 USD
Free Shipping on orders $49 and up
$ 10.99 USD
Free Shipping on orders $49 and up
This is the updated hose that goes from the Crankcase Oil Separator Valve to the oil dipstick tube. This tube tends to get plugged with oil sludge and becomes brittle and cracks. It fits E46 323i 323ci 325i (M54) 325ci (M54) 325xi 328i 328ci 330i 330ci 330xi - E39 525i 530i - E60 525i 530i 2004-2005 - X3 2.5i 3.0i 2004-2006 - Z3 2.5i 3.0i - Z4 2.5i 3.0i 2003-2006.
In german, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

This item fits the following BMWs:
2001-2005 E46 BMW 325i 325ci 325xi Only for cars with M54 engine
1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
2001-2003 E39 BMW 525i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2006 E83 BMW X3 2.5i X3 3.0i
2001-2002 Z3 BMW Z3 2.5i Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i
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Rein - Corporate Logo
T#:591606
Part#: 11257506252
Back Ordered
$ 53.99

This product was last offered at the strikethrough price on
10-28-2026

$ 48.99 USD
Free Shipping on orders $49 and up
$ 48.99 USD
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Piston Ring - Priced Per Piston | BMW M54 3.0L Engine is a vital component in maintaining proper compression and oil control in BMW M54 3.0L engines. Over time, piston rings experience wear from continuous movement within the cylinder bore, leading to decreased engine efficiency. Worn or damaged rings can result in excessive oil consumption, reduced performance, and visible black or blue smoke from the exhaust. Ideal for engine rebuilds, this high-quality replacement ensures optimal sealing and longevity.

  • Restores proper compression and oil control for improved engine performance
  • Reduces oil consumption and minimizes exhaust smoke
  • Direct-fit replacement for BMW M54 3.0L engine pistons
  • Manufactured from high-strength materials for durability and longevity
  • Essential for engine rebuilds and maintaining peak efficiency
  • Designed to withstand high temperatures and pressures for reliable operation
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Canyon Engine - Corporate Logo
T#:593972
Part#: 11121735533
In Stock
$ 9.99

This product was last offered at the strikethrough price on
10-28-2026

$ 7.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 9.99

This product was last offered at the strikethrough price on
10-28-2026

$ 7.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up


General Purpose Hose Clamp - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592737
Part#: 07129952104
Ships in 4 Business Days
$ 6.99 USD
Free Shipping on orders $49 and up
Rein - Corporate Logo
T#:362382
Part#: 13641730767
In Stock at Vendor
$ 6.17 USD
Free Shipping on orders $49 and up
Located on nozzle end of injector
Meistersatz - Corporate Logo
T#:360224
Part#: 11421719855
Ships in 3 Business Days
$ 5.99 USD
Free Shipping on orders $49 and up
This is the replacement for the troublesome oil filter profile gasket on the M50, S50US, M52, S52, M52TU, M54, and S54 engines. The housing is separate from the engine block and in between there is this small profile gasket. The gasket shrinks over time which allows oil to seep out. In our own service shop, it's one of the most common service jobs we perform. 

One of the other common leak points is the VAN0S oil line and its seals. Since the line comes out with the oil filter housing anyway you might as well replace the line itself or at least the seals. 

On S54 engines (E46 M3, MZ3, Z4 M) there is a flanged head bolt going into the cylinder head, behind the thermostat cover. This holds the left side timing chain guide rail in place and if it's loose or falls out you could have a very serious engine failure to deal with. Make sure to check this bolt while you're replacing the oil filter housing seal. You only need to make sure it's tight. But if it's come loose you may want to replace the seal ring and use a small touch of oil-resistant thread sealer. 
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Meistersatz - Corporate Logo
T#:57580040
Part#: 11127832034
Ships in 4 Business Days
New Item
$ 162.99 USD
Free Shipping on orders $49 and up
Tackle cylinder head service head-on and safeguard your engine’s performance with complete confidence using this valve stem seal kit from Meistersatz.

Rein - Corporate Logo
T#:60102635
Part#: 07119900052
Ships in 4 Business Days
New Item
$ 1.99 USD
$ 1.99 USD

Rein - Corporate Logo
T#:31092540
Part#: 13311703387
Ships in 1-2 days
$ 2.99 USD
Free Shipping on orders $49 and up
Rein Pressure Hose - 11727555680 - E46
For vehicles with production date up to 03/2003
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:362278
Part#: 11727555680
In Stock
$ 26.99

This product was last offered at the strikethrough price on
08-26-2026

$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
Free Shipping on orders $49 and up
Runs from the air pump to the solenoid valve

Rein - Corporate Logo
T#:359420
Part#: 11157532649
In Stock
$ 11.99 USD
Free Shipping on orders $49 and up
$ 11.99 USD
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ENGINE VENT HOSE 11157532649

Rein - Corporate Logo
T#:50934444
Part#: 32416751128
In Stock
$ 4.99 USD
Free Shipping on orders $49 and up
Rein - Corporate Logo
T#:591528
Part#: 11127509328
Back Ordered
$ 6.51 USD
Free Shipping on orders $49 and up
Includes the sealing gasket