BMW Engine Parts for BMW Z Series E85/6 (2003-2008)

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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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Timing Chain Kit - M50/M52/M54
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Packaged by Turner - Corporate Logo
T#:5512212
Part#: 11311703717KT
In Stock
Sale - Save 33% $ 109.99

This product was last offered at the strikethrough price on
05-28-2026

$ 74.22 USD
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Sale - Save 33%
$ 109.99

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$ 74.22 USD
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Timing Chain Kit for the BMW M50/M52/M54 engines composed of quality parts by Bremmen Parts! Kit Contents: Lower Timing Chain Tensioner Timing Chain - Lower Lower Timing Chain Guide Rail Tensioner Piston
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High-Performance Ignition Service Kit - BMW N52 3.0L
For vehicles with production date from 04/2006
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:583536
Part#: N52PISKT
In Stock
Sale - Save 20% $ 243.99

This product was last offered at the strikethrough price on
05-03-2026

$ 195.55 USD
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Sale - Save 20%
$ 243.99

This product was last offered at the strikethrough price on
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$ 195.55 USD
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Every 60-80,000 miles, we recommend replacing your spark plugs to ensure your ignition system is running optimally. Over time carbon can build up around the head of the spark plug and decrease spark strength and effectiveness, leading to weaker fuel mixture detonation, misfires, and potential check engine lights. To prevent this, have put together our High-Performance Ignition Service Kits. These kits include new Bav Auto High-Performance Ignition Coils, new spark plugs, dielectric grease, and a BMW spark plug service label to keep track of when your spark plugs were replaced.

Bav Auto's Ignition coils feature core windings that have been modified to increase firepower and promote a faster, more efficient burn. This gives your BMW/MINI increased torque in the lower range of RPM and more horsepower in the upper range. Exact improvements depend on the current condition of your engine, but you'll definitely feel the difference. They'll also improve your fuel economy.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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

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Oil Pan Gasket - With Bolts
Bolts Are For Vehicles With Automatic Transmission ONLY
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5403247
Part#: 11132210959TMSKT
In Stock
$ 83.40 USD
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$ 83.40 USD
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Gasket between oil pan and engine block. A common piece to begin leaking on any engine, oil pan gaskets begin to leak after a few years.

S54 Valve Adjustment Shim Set - With Tools
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:401664
Part#: VSK4KT2
In Stock
$ 143.84 USD
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$ 143.84 USD
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Proper valve lash adjustment is critical for longevity and performance. If your S54 is due for valve adjustment maintenance you can do it yourself with this kit, saving hundreds of dollars in labor charges. 

Includes

  • Shim set 
  • Installation tool #83300493743
  • 16 Blade Feeler gauge set 

BMW recommends S54 valve inspection and adjustment every 30k miles.

*Click here for valve adjustment instructions*

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Ina - Corporate Logo
T#:304220
Part#: 11287530314
In Stock
$ 84.99

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

$ 59.49 USD
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$ 59.49 USD
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This is an OEM INA�mechanical tensioner for the serpentine belt. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

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

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Timing Chain Tensioner INA- M52 2.5L & 2.8L / S54 3.2L
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:403736
Part#: 11317838675
In Stock
$ 139.99

This product was last offered at the strikethrough price on
05-06-2026

$ 92.99 USD
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$ 92.99 USD
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Turner Motorsport BMW Timing Chain Tensioner Replacement

Introducing the BMW Timing Chain Tensioner Replacement by Turner Motorsport, a vital component to maintain optimal tension and prevent timing chain issues. Engineered for reliability, this replacement ensures the proper functioning of your cam gears and crank, preventing potential engine damage.

Benefits:

  • Crucial for timing chain tension
  • Prevents chain skipping
  • Safeguards against catastrophic engine damage
  • Quiets noisy chains for a smoother engine operation

Replace your BMW's timing chain tensioner with this Turner Motorsport solution to keep your engine running smoothly.

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Ina - Corporate Logo
T#:4466
Part#: 11281427252
In Stock
$ 52.99 USD
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$ 52.99 USD
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This tensioner is for either the Water Pump or Alternator on cars with the mechanical belt tensioner system. Please check to ensure your car does not have the hydraulic tensioner. This tensioner comes with the pulley assembly.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

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

Only for cars with Mechanical belt tensioner systems.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic
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
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i

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E46 M3 / MZ4 Rod Bearing Overhaul Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:392550
Part#: S54RBPDK
In Stock
Sale - Save 1% $ 455.99

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

Starting at $ 452.97 USD
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Sale - Save 1%
$ 455.99

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

Starting at $ 452.97 USD
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Replacing the rod bearings requires mechanical knowledge and skill, a clean workspace, and several specialist tools. Our preferred procedure is to leave the engine in the car but remove the front subframe. The engine must be supported from above with an engine brace. Removing the front subframe involves disconnecting the control arms and steering rack and steering column. The oil pan can then be removed and you can access the connecting rods and bearings. Replacing the rod bearings themselves is straightforward but patience and forethought will be extremely helpful. In addition to analyzing the severity of the rod bearing wear, the crankshaft must also be inspected closely for damage. Rod bearings that have been severely worn may have damaged the crankshaft (requiring replacement or machining).
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Comprehensive Constant Pressure Valve Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:557341
Part#: 11111318185TMSKT
In Stock
Sale - Save 2% $ 85.93

This product was last offered at the strikethrough price on
05-03-2026

$ 84.32 USD
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Sale - Save 2%
$ 85.93

This product was last offered at the strikethrough price on
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$ 84.32 USD
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When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

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N52 Valvetronic Camshaft Adjuster Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416764
Part#: 11377548388TMSKT
In Stock
Sale - Save 19% $ 220.99

This product was last offered at the strikethrough price on
05-03-2026

$ 179.28 USD
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Sale - Save 19%
$ 220.99

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Includes new Valvetronic motor, gasket, and hardware. The Valv-tronic adjuster unit changes the the timing shaft to adjust the valve timing.
Valve Cover Gasket Overhaul Kit - E9X 328i, E60 528i, E83 X3 3.0i/si,...
For vehicles with a production date from 10/2006
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:180875
Part#: TMS180875
In Stock
$ 142.24

This product was last offered at the strikethrough price on
05-07-2026

$ 107.43 USD
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$ 107.43 USD
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Not only will this kit stop most E90 oil leaks, it's the perfect addition for ignition coil or spark plug replacement! Oil leaks - and the damage they can cause - seem to be the worst annoyances on these cars. The biggest source of an oil leak is from the valve cover, followed by the oil filter housing, Valvetronic seal, camshaft seals, and the eccentric shaft sensor seal. Once the oil leaks, and if ignored for an extended time, the oil will contaminate vital electrical sensors. This is especially the case with ignition coils and also the eccentric shaft sensor on the Valvetronic shaft at the top of the cylinder head. During any ignition coil and spark plug replacement take a close look inside for any oil pooling at the bottom. We have been seeing valve cover oil leaks as soon as 40,000 miles. We look for oil leaks on every E90 that comes into our shop.

We have put together this package of valve cover gaskets and other related gaskets and seals for you to fully overhaul the N52 valve cover and put a stop to those pesky oil leaks. This package has the replacement parts for N52 engines built from the 2007 model year and includes:

  • 11127582245 - N52 valve cover gasket set
  • 11127552280 - N52 eccentric shaft sensor seal
  • 11127559699 - N52 Valvetronic gasket

2007 and later N51/N52 engines do not need replacement valve cover bolts, unless the bolts are actually broken off or missing. Unlike the 2006 aluminum hardware, the later parts are steel and not 1-time use.

These are all OEM or OE parts. Replacement of these gaskets and seals is straight-forward but a long process. BMW dealers typically charge for over eight hours of labor. If you have replaced spark plugs before you should be capable of this repair. In addition, there are several other parts to replace while you're in the vicinity: camshaft sensor o-rings, oil filter housing profile gasket, VAN0S solenoids, and the eccentric shaft sensor. These other parts, except the eccentric shaft sensor (see below), are replaceable without removing the valve cover but are more easily accessed during the valve cover work.

Eccentric Shaft Sensor: This is the position sensor that relays the eccentric shaft's position back to the DME. It's located at the front of the engine and is only accessible with the valve cover off . The seal around the sensor can fail and allow oil to blow out from under the cam cover. Oil can then leak into the sensor itself and cause it to fail. Without a functioning sensor your E90 can experience poor running, hesitation, poor performance, jerky shifts, and sluggish response. It's easy to check and see if oil has accumulated inside the sensor: unbolt the engine trim cover (the outer cover with the BMW roundel), unplug the sensor, and look inside. If oil is present inside or even around the sensor itself, plan on replacing this sensor during your next ignition coil, spark plug, and/or valve cover gasket work.

This valve cover kit fits the following BMWs:
2008-2012 E82 BMW 128i
2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible
2007-2010 E60 BMW 528i 528xi 528i xDrive
2011 F10 BMW 528i
2007-2010 E83 BMW X3 3.0i X3 3.0si
2007-2013 E70 BMW X5 3.0si
10/2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009+ Z4 BMW Z4 sDrive30i
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Ina - Corporate Logo
T#:2479
Part#: 11281433571
In Stock
$ 68.91

This product was last offered at the strikethrough price on
10-02-2026

$ 67.76 USD
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$ 67.76 USD
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This is an OEM INA AC Belt Tensioner with pulley for all 2001-2006 E46 M3, as well as all 1999-2002 non-M E46 3 series models. These belt tensioner units are known to fail, and include the tensioner pulley (as shown).

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

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

This Air Conditioning / AC Belt Tensioner with Pulley fits:
1999-2000 E46 3 Series 323i, 323Ci, 328i, 328Ci
2001-2002 E46 3 Series 325i, 325Ci, 330i, 330Ci
2001-2006 E46 M3 coupe & convertible

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Packaged by Turner - Corporate Logo
T#:583532
Part#: S54PISKT
In Stock
Sale - Save 19% $ 291.99

This product was last offered at the strikethrough price on
05-03-2026

$ 237.89 USD
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Sale - Save 19%
$ 291.99

This product was last offered at the strikethrough price on
05-03-2026

$ 237.89 USD
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Every 60-80,000 miles, we recommend replacing your spark plugs to ensure your ignition system is running optimally. Over time carbon can build up around the head of the spark plug and decrease spark strength and effectiveness, leading to weaker fuel mixture detonation, misfires, and potential check engine lights. To prevent this, have put together our High-Performance Ignition Service Kits. These kits include new Bav Auto High-Performance Ignition Coils, new spark plugs, dielectric grease, and a BMW spark plug service label to keep track of when your spark plugs were replaced.

Bav Auto's Ignition coils feature core windings that have been modified to increase firepower and promote a faster, more efficient burn. This gives your BMW/MINI increased torque in the lower range of RPM and more horsepower in the upper range. Exact improvements depend on the current condition of your engine, but you'll definitely feel the difference. They'll also improve your fuel economy.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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

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S54 Valve Adjustment Kit - With gaskets
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:582218
Part#: 83300493743
In Stock
$ 247.52 USD
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$ 247.52 USD
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BMW recommends valve adjustments every 30k miles on your S54-equipped BMW. We have all the parts you will need to do the job in one discounted package for your BMW E46 M3, Z3, or Z4! Kit includes: 11127832034 x 1 - Valve Cover Gasket 11127831271 x 6 - Spark Plug Hole Gasket 11121437395 x 2 - Valve Cover Seal Washer Grommet 11127830972 x 13 - Valve Cover Nut Grommet VSK4 Wiseco x 1 - Valve Shim Set 83300493743 x 1 - Valve Shim Tool *Click here for valve adjustment instructions* This item fits the following BMWs: 2001-2006 E46 BMW M3, M3 Convertible2001-2002 Z3 BMW M Roadster M Coupe2006-2008 Z4 BMW Z4 M Roadster M Coupe
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Packaged by Turner - Corporate Logo
T#:582210
Part#: S54WVALVESHIMKT
In Stock
Sale - Save 3% $ 227.31

This product was last offered at the strikethrough price on
08-24-2026

$ 221.45 USD
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Sale - Save 3%
$ 227.31

This product was last offered at the strikethrough price on
08-24-2026

$ 221.45 USD
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Glyco - Corporate Logo
T#:375823
Part#: 11211706847
In Stock
$ 136.06

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

$ 126.82 USD
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$ 126.82 USD
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Standard bore

DSC Pressure Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:567281
Part#: 34521164458
In Stock
$ 152.99 USD
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$ 152.99 USD
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This sensor is attached to the brake master cylinder
OEM INA Hydraulic Belt Tensioner - E36, E46, E39 6-cyl
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:1603
Part#: 11281717188
In Stock
$ 79.99

This product was last offered at the strikethrough price on
07-29-2026

$ 56.99 USD
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$ 56.99 USD
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For Alternator / Water Pump Belt

Hydraulic Belt Tensioner for E36, E46, E39 6-cyl models. This is the oil-filled tensioner that keeps the main drive belt in the proper tension. Over time the piston seals inside allow fluid to leak out. The tensioner becomes frozen or inoperable. Replacement is the best corrective action to take. This can be done during any belt or pulley service or anytime the fan is off the engine.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

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


NOTE: These BMW's may have been equipped with either a mechanical or hydraulic tensioner. Only for cars with Hydraulic Belt Tensioners. Please check before ordering.

This tensioner pulley fits the following BMWs:
1991-1995 E34 525i (M50 engine)
1992-1999 E36 325i, 325is, 328i, 328is, 323is
1995-1999 E36 M3 (M3 3.0 & M3 3.2 liter)
1997-2003 E39 525i, 528i, 530i
1999-2000 E46 323i, 323Ci, 328i, 328Ci
2001-2005 E46 325i, 325Ci, 325xi, 330i, 330Ci, 330xi
2001-2006 E46 M3 coupe & convertible
2000-2006 X5 3.0 liter (E53 chassis)
2006 525i, 530i(M54 engine)
1997-2002 Z3 & MZ3 2.8, M Roadster, M Coupe
2003-2009 Z4 M Coupe and Roadster

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S54 Constant Pressure Valve Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:401625
Part#: 11111318185KT
In Stock
Sale - Save 2% $ 85.93

This product was last offered at the strikethrough price on
05-03-2026

$ 84.32 USD
Free Shipping
Sale - Save 2%
$ 85.93

This product was last offered at the strikethrough price on
05-03-2026

$ 84.32 USD
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When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

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URO Valvetronic Camshaft Adjusting Unit - BMW N52 3.0L
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:8677205
Part#: 11377548388
In Stock
$ 137.99 USD
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$ 137.99 USD
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This new Valvetronic variable valve timing actuator works by adjusting the eccentric shaft, increasing or decreasing valve lift and duration for optimal performance. If your actuator has failed, you will notice a significant power and performance decrease and an engine service light illuminated on the dash. Replace your with this quality URO replacement to restore performance and get your BMW back on the road! Features: Guaranteed fitment High-strength materials withstand engine heat and vibration Manufactured to OE dimensions for proper clearances and alignment Matches OE specifications for proper timing at all engine speeds 24-Month Unlimited Mileage Warranty
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URO - Corporate Logo
T#:395230
Part#: 11127552281
Ships in 1 Business Day
$ 249.99 USD
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$ 249.99 USD
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All-in-one valve cover overhaul Preventative replacement saves time and trouble later on Includes new oil separator system Replace valve cover gaskets before a leak becomes worse Replace valve cover before it cracks For the 2007 model year BMW switched to a plastic valve cover on the N51 and N52 engines. As we have seen over time the plastic can crack which leads to oil leaks, vacuum leaks, poor running, and other issues. Unfortunately, it's not just the gasket that needs periodic replacement but the entire valve cover itself. This kit includes a new valve cover, gaskets, eccentric shaft seal, and hardware. The valve cover also incorporates the oil separator which is not a replaceable item on its own. So a complete valve cover replacement will tackle multiple problem areas at once. The valve cover is the same for N51 SULEV and N52 engines. Cracked Valve Cover. The plastic used for the N52 valve cover is thin and weak in certain spots. This makes it prone to hairline or larger cracks that will leak oil and cause vacuum leaks. You might also notice rough running, especially at idle. Often a technician will go looking for a failed ignition coil, spark plug, or failed vacuum hose on the engine. And without a fault code to assist in diagnosis this can often mean wasted time and money. A cracked valve cover is a new problem area that many techs don't think to check. Oil Separator/Crankcase Vent. BMW integrated the oil separator system into the valve cover on these later engines. An internal manifold creates a cyclone effect and centrifugal force separates vapor from the liquid oil. The liquid oil is supposed to drain through the valve cover and back to the oil pan while the remaining vapor is burned up during combustion. It's a very efficient and environmentally-friendly design with very few moving parts. Unfortunately it's not perfect and eventually the internal passageways will become clogged. This problem is made worse in cars that have short drive cycles, sit for long periods of time, do not have frequent oil changes, do not see regular runs to redline, and cars in freezing climates. If the engine never reaches optimal operating temp the oil remains in liquid form or becomes sludge. This is bad news for the entire engine, leading to fouled spark plugs, rough running and misfires and even premature failure of catalytic converters and oxygen sensors. Since the oil separator system in the valve cover is not available on its own, and cleaning it is nearly impossible, the complete replacement of the valve cover is the only option. Other oil vent tubes and vacuum hoses are also recommended to get replaced at the same time. Valve Cover Gaskets. As with any rubber part, failures occur when the rubber becomes dry and brittle. The pliable rubber no longer forms a seal between the cylinder head and valve cover where it will develop an oil leak. Valve cover gaskets that leak can allow oil to seep into the spark plug holes and contaminate ignition coil boots and plugs. That can lead to rough running and misfires. A new valve cover includes new gaskets. Eccentric Shaft Seal. The seal for the eccentric shaft sensor is a known spot for oil leaks. When the seal to the valve cover fails oil can end up in the sensor itself and ruin the sensor (an unecessary $300 expense). Usually a new seal (o-ring) will stop the leaks but sometimes the valve cover is at fault too. A new eccentric shaft seal is included. All new hardware is included to avoid re-using and over-tightening the original bolts (they have a very low torque rating). Replacement requires accessing the rear of the engine with a lot of the upper plastic shrouding removed. The vent hose on the valve cover should be replaced as it is almost always broken anyway (#11157559528). The metal fuel line must also be removed and disconnected from the fuel injectors. Professional installation is encouraged if you have never done this kind of work before. Serious DIY types should have a Bentley Service Manual to use which greatly explains the process. You may also want to combine this work with the oil filter housing gasket replacement. There is no maintenance or replacement interval for the N52 valve cover. However, we have seen cracks and other failures in the 50,000-90,000 mile range. Our best advice is to plan on a major top end overhaul around the 70-80,000 mile mark. There's no mechanical downside to replacing it as prevention and it will make the engine run better and last longer. This item fits the following BMWs: 2008-2012 E82 BMW 128i 2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan 2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon 2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe 2007-2013 E93 BMW 328i - Convertible 2008-2010 E60 BMW 528i 528xi 528i xDrive 2011 F10 BMW 528i 2007-2010 E83 BMW X3 3.0i X3 3.0si 2007-2008 E70 BMW X5 3.0si 2007-2008 E85 BMW Z4 3.0i Z4 3.0si 2009-2010 Z4 BMW Z4 sDrive30i
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Ina - Corporate Logo
T#:12545
Part#: 11287530314K
In Stock
$ 67.99 USD
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$ 67.99 USD
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This is the mechanical tensioner for the serpentine belts on BMW's with the N52 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. Kit includes 11287530314 tensioner and 11287530315 aluminum bolt.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2012 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2012 E93 BMW 328i - Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
2006-2010 E83 BMW X3 3.0i X3 3.0si
2007-2013 E70 BMW X5 3.0si X5 xDrive30i
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009+ Z4 BMW Z4 sDrive30i
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S54 Ignition Service Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:6196924
Part#: 12131712219TKT
In Stock
$ 303.99 USD
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$ 303.99 USD
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Restore your ignition system using high quality Bosch ignition coils and NGK spark plugs. Your ignition system will start to fail with age, which will ruin your fuel economy as well as your performance. This Turner Motorsport kit includes new coils, plugs, and hardware. This particular kit utilizes all quality aftermarket components.
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Oil Pan Gasket Replacement Kit
For vehicles with automatic transmission only
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5403285
Part#: 11137548031TMSKT
In Stock
$ 229.99 USD
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$ 229.99 USD
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Includes new pan gasket, hardware and a oil service kit. A common piece to begin leaking on any engine, oil pan gaskets begin to leak after a few years.


URO Oil Separator Valve - BMW E60 E90 Z4 N52
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:592960
Part#: 11617531423
Ships in 1 Business Day
$ 57.12 USD
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$ 57.12 USD
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he 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.
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Packaged by Turner - Corporate Logo
T#:338260
Part#: 12147518628HK
Ships on Oct 27, 2026
Starting at $ 79.98 USD
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Starting at $ 79.98 USD
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This is the exhaust cam position sensor for cars with M52, M54, N62 engines. Choose either Genuine BMW or Hella brand. Hella manufactures the highest quality parts and is an OEM supplier to BMW. Includes BMW part numbers 12147518628 and 12141748398. Replaces BMW part number 12141438082.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 545i
2004-2005 E63 BMW 645ci
2002-2005 E65 BMW 745i 745li
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2004-2006 E53 BMW X5 4.4i 4.8i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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Crankshaft Pulley With Vibration Damper
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URO - Corporate Logo
T#:593668
Part#: 11237564969
Ships in 1 Business Day
$ 234.99 USD
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$ 234.99 USD
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Every time the cylinders fire, torque is transferred into the crankshaft. The crankshaft deflects under this torque, which sets up vibrations when the torque is released. At certain engine speeds the torque imparted by the cylinders are in synch with the vibrations in the crankshaft, which results in a phenomenon called resonance This resonance causes stress beyond what the crankshaft can withstand, resulting in crankshaft failure. The accessory pulley acts as a balancer and prevents these vibrations from destroying your crankshaft.
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Oil Pan Gasket - With Bolts
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Packaged by Turner - Corporate Logo
T#:15644297
Part#: 11132210959-KT
In Stock
$ 83.40 USD
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$ 83.40 USD
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A common piece to begin leaking on any engine, oil pan gaskets begin to leak after a few years.

Eccentric Shaft Sensor Kit
For vehicles with production date up to 10/2006
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Packaged by Turner - Corporate Logo
T#:5416787
Part#: 11377524879TMSKT
In Stock
Sale - Save 18% $ 270.99

This product was last offered at the strikethrough price on
05-03-2026

$ 221.57 USD
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Includes a new sensor as well as valve cover and eccentric gaskets for a complete service. The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.
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OEM Ignition Service Kit - N52 (04/2006+)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:556738
Part#: N52TISKT
In Stock
Sale - Save 3% $ 273.99

This product was last offered at the strikethrough price on
06-15-2026

$ 266.21 USD
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This product was last offered at the strikethrough price on
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$ 266.21 USD
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Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

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S54 Camshaft Installation Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:599963
Part#: 1131783634KT1
In Stock
Sale - Save 3% $ 307.99

This product was last offered at the strikethrough price on
06-15-2026

$ 298.02 USD
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Includes needed gaskets and hardware for installing a new camshaft set.
URO Oil Pan Filter Kit
Kit used for Aluminum oil pan part# 24 15 2 333 907 PRM.
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:596312
Part#: 24152333907K
Ships in 1 Business Day
$ 93.99

This product was last offered at the strikethrough price on
08-07-2026

$ 85.99 USD
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$ 85.99 USD
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This URO kit replaces the transmission pan filter, gaskets, seals, and plugs on the URO metal transmission pan (part number URO-011920).

URO - Corporate Logo
T#:7530051
Part#: 11367583208
In Stock
$ 201.99 USD
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$ 201.99 USD
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This timing chain camshaft gear controls the camshaft position and timing and is located toward the front of the engine. Located on the exhaust side of the engine at the front end of the exhaust camshaft. Sometimes changed when replacing the timing chain. T#34658 may also be required when servicing this part.
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Timing Chain Kit - N52
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Packaged by Turner - Corporate Logo
T#:640351
Part#: 11317584084KT3
Ships in 5 Business Days
Sale - Save 17% $ 595.99

This product was last offered at the strikethrough price on
05-03-2026

$ 494.62 USD
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Sale - Save 17%
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This product was last offered at the strikethrough price on
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Timing chains can cause catastrophic problems with your N52 engine if it doesn't function properly. Common symptoms of failure include excessive vibration or “slap” from the timing chain, and the possibility of plastic particles throughout the oil. Symptoms typically begin to surface between 80,000 and 100,000 miles. If left untouched, the issue can compound itself so far as to allow the timing chain to jump out of time, leaving you with a potentially damaged head and larger repair costs. This kit has been assembled using genuine BMW and high quality aftermarket components. From new timing chain guides, to a replacement oil pan drain plug, this kit has you covered to assure that all the needed parts are on hand and ready to install.
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Glyco - Corporate Logo
T#:375824
Part#: 11211706850
In Stock at Vendor
$ 126.61

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

$ 120.62 USD
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$ 120.62 USD
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59.75MM(+0.25) bore
Valve Cover
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:559290
Part#: 11127512839
Ships in 1 Business Day
$ 270.99

This product was last offered at the strikethrough price on
05-07-2026

$ 256.99 USD
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$ 256.99 USD
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This complete valve cover assembly includes a sealing gasket and engine cover mounts.


URO Oil Filter Housing - With Cap
For vehicles with High Speed Synchronization (oil cooler) option
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:640564
Part#: 11428683206
Ships in 1 Business Day
$ 305.99 USD
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$ 305.99 USD
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The aluminum oil filter housings can crack causing oil leaks which leads to a mess and possible engine damage. This Bremmen replacement unit has the oil housing, the oil cooler, sensor and gaskets to get your car sealed up and working properly again all in one go!
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Glyco - Corporate Logo
T#:374671
Part#: 11211706848
Ships in 1-2 days
$ 194.32 USD
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$ 194.32 USD
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Standard bore
S54 Valve Adjustment Kit - E46 M3, Z3M, Z4M
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:401675
Part#: S54VADJKT1
In Stock
Sale - Save 2% $ 405.61

This product was last offered at the strikethrough price on
05-03-2026

$ 396.39 USD
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Sale - Save 2%
$ 405.61

This product was last offered at the strikethrough price on
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$ 396.39 USD
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BMW recommends valve adjustment every 30,000 miles on the S54 engine.This valve adjustment kit includes every thing needed to to a proper valve adjustment on the S54 engine. 

Kit includes

  • Wiseco valve shims
  • Elring valve cover gasket set
  • BMW Valve shim Installation tool
  • Valve shim feeler gauge set 
  • Castrol TWS Edge Professional Engine Oil - 6 Quarts
  • Mann Oil Filter Kit
  • Oil pan drain plug 

Please note the the included feeler gauge set allows you to stack feeler blades to get a more precise adjustment 

*Click here for valve adjustment instructions*

This item fits the following BMWs: 
2001-2006 E46 BMW M3, M3 Convertible 
2001-2002 Z3 BMW M Roadster M Coupe 
2006-2008 Z4 BMW Z4 M Roadster M Coupe 

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S54 Valve Adjustment Kit - E46 M3, Z3M, Z4M
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5675
Part#: S54VALVESHIMKIT
Ships in 6 Business Days
$ 1,256.41

This product was last offered at the strikethrough price on
10-05-2026

$ 1,252.98 USD
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$ 1,252.98 USD
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BMW recommends valve adjustments every 30k miles on your S54 equipped BMW. We have all the parts you will need to do the job in one discounted package. The kit includes all the Genuine BMW valve shims, valve shim tool, and all the gaskets and seals you will need.

Kit includes:
11127832034 x 1 - Valve Cover Gasket
11127831271 x 6 - Spark Plug Hole Gasket
11121437395 x 2 - Valve Cover Seal Washer Grommet
11127830972 x 13 - Valve Cover Nut Grommet
11340031525 x 1 - Valve Shim Set
83300493743 x 1 - Valve Shim Tool

*Click here for valve adjustment instructions*

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible2001-2002 Z3 BMW M Roadster M Coupe2006-2008 Z4 BMW Z4 M Roadster M Coupe

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OEM Accessory Belt Kit - E46 M3
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554437
Part#: E46M3ACCKT
Back Ordered
$ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 328.99 USD
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$ 328.99 USD
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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
2001-2006 E46 BMW M3

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Packaged by Turner - Corporate Logo
T#:2911
Part#: TMS2911
Back Ordered
Sale - Save 3% $ 748.00

This product was last offered at the strikethrough price on
05-03-2026

$ 725.56 USD
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$ 748.00

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2003-2005 E85 Z4 3.0-liter Stage 1 Performance Package
Peak Power Gain: +17hp / +8ft-lbs
Rev limit: 7000
Octane: 91 or higher

Our Stage 1 kit featuring a cold-air intake kit and performance software. The aFE intake is made from high-quality materials, reducing underhood temperatures and not contributing to heat soak of the air filter. aFe's Stage 2 Intake uses an oiled cotton air filter for maximum air flow and excellent filtration. The kit is supplied complete with heat shield, ABS plastic intake tube, sealing materials, hardware, and install instructions.

The software is tuned by BMW tuning whiz Jim Conforti and supplied with the Shark Injector. The Shark Injector is a do-it-yourself reflash tool that plugs into the OBD diagnostic plug in your dash. With the push of a button, it will copy your stock software and reflash your computer with the performance tune. You can set it back to stock at any time by following the same procedure.

Both of these items work together to bring up huge torque increases and much improved driveability. They provide a solid performance boost with a low upfront cost. For an excellent 'bang for the buck' upgrade, the software and intake are a great choice.

2003-2005 E85 Z4 3.0-liter Stage 1 Engine Upgrade includes:
aFe Cold Air Intake
Shark Injector performance software

Applications:
2003-2005 E85 Z4 3.0-liter (M54 engine)
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M54 Complete Fuel Injector Set
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416770
Part#: 13537546245TMSKT
Back Ordered
Sale - Save 9% $ 876.99

This product was last offered at the strikethrough price on
05-03-2026

$ 802.00 USD
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Sale - Save 9%
$ 876.99

This product was last offered at the strikethrough price on
05-03-2026

$ 802.00 USD
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Includes new injector, fuel rail o-ring and injector holder. A vehicle with dirty injectors may host a wide variety of symptoms. From stalling, hesitation, misfiring, and a rough idle, to the wide open throttle woes. If your vehicle is suffering from these symptoms, the fuel injectors may be the cause.
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"Cold Climate" Crankcase Pressure Regulator Valve
Superior performance for both warm and cold climates
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:376770
Part#: 11617533400
Ships in 1 Business Day
$ 40.99 USD
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$ 40.99 USD
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Commonly referred to as the "oil separator" or PCV

Packaged by Turner - Corporate Logo
T#:401689
Part#: OILTEMPGAUGEBRKK
Back Ordered
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This product was last offered at the strikethrough price on
05-03-2026

$ 193.26 USD
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Sale - Save 2%
$ 196.99

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The EVO series from ProSport Gauges is an award winning, industry leading option for those looking to push their car's limits. They allowing you to monitor crucial engine functions in one quick glance with advanced precision. Featuring a dual color readout, you can customize your readout to your liking. Offering a user friendly readout with a digital reading in the center with a bar-graph style sweep around the gauge as well.
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Glyco - Corporate Logo
T#:374670
Part#: 11211706849
Back Ordered
$ 177.99

This product was last offered at the strikethrough price on
05-07-2026

$ 172.99 USD
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$ 172.99 USD
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Standard bore
Glyco - Corporate Logo
T#:374672
Part#: 11211706852
Back Ordered
$ 111.99

This product was last offered at the strikethrough price on
05-07-2026

$ 108.99 USD
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$ 108.99 USD
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59.75MM(+0.25) bore