Turner Monoball Bushings | E39 540i / M5

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The advantage of a ball joint is that it will not deflect under load. Stock rubber bushings allow significant fore and aft movement of the front wheels to absorb road impacts. This is great for comfort, but results in unwanted alignment change; especially used in a track setting. Our ball joints sit in a CNC machined aluminum housing, which has zero unwanted deflection, yet allows complete freedom of movement at the desired angles for precise handling and control.

Turner Motorsport Pre-installed Front Monoball Bearing Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
T#:402403
Part#: 022012TMS11
In Stock at Vendor
Sale - Save 3% $ 1,381.21

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

$ 1,339.77 USD
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Sale - Save 3%
$ 1,381.21

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

$ 1,339.77 USD
Free Shipping

BMW’s are known to have failure prone front thrust arm bushings.  The flexible rubber bushings, even those found in M performance models, allow significant movement of the front wheels to maximize daily driving comfort, but also allow considerable alignment change.  This results in a disconnected and numb road feel, standing between you and a confidence inspiring driving experience. Eventually the fluid filled rubber bushings fatigue and crack due to continual deflection and ozone degradation, and eventually the damping fluid leaks out resulting in complete failure.

For the enthusiast looking for superior performance and longevity with a crisp, confidence-inspiring driving experience, our sealed ball joint monoballs are the best solution available!  Our experience with spherical front control arm ball joints goes back to those we designed and used in our IMSA E90 328i and E92 M3 race cars (GS class Champions in 2011). We wanted to offer as many BMW owners possible a similar level of handling, precision, and control for the track and street.

Utilizing a sealed OEM BMW ball joint for exceptional quality and durability, making them completely at home on both the street and track with no compromise.  We have done extensive street, autocross, and track testing to ensure the ball joint used in this bushing design excels in each setting. The advantage of a sealed ball joint is that it eliminates all unwanted deflection while still allowing complete bind-free movement throughout suspension travel, resulting in exceptional control of wheel alignment.  What you get is superior steering precision, turn-in response, direct braking feedback, and better handling.

In short, if you're seeking the ultimate in precise, predictable handling and control, with crisp braking response and a long service life that’s equally at home on the street or track - look no further. We have you covered.

 

 

 

 

 

 

We offer these control arms with the monoball bearings pre-installed for your convenience. Since BMW recommends the control arms be replaced for every other bushing change, we prefer to sell these as a pre-assembled set. The bushings are also available separately if you wish to source your own control arms.

 

Control Arm Bearing

  • CNC machined corrosion resistant 304 Stainless steel shell, bolt sleeves, & snap rings
  • Sealed spherical ball joint for long service life & maintained OE fitment
  • Suspension pre-load is no longer required when torquing the control arm hardware

 

Thrust Arm Bearing:

  • OEM BMW sealed, greased ball joint for exceptional durability and service life, even in the most severe operating conditions
  • 6061-T6 anodized housing for excellent corrosion resistance
  • Proprietary Turner designed knurled OD to provide the perfect fit for the wide range of thrust arm bore diameters among brands
  • CNC machined 304ss, providing a precision fit between the ball joint and the subframe

 

Benefits of Both:

  • Nearly instantaneous, crisp steering and braking response.
  • Maintenance free, long lasting performance.
  • Improved road feel without undesirable NVH.
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Turner Spherical Monoball Thrust Arm Bearing Upgrade - Pre-installed ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
T#:399462
Part#: 022012TMSE39KT
In Stock
Sale - Save 3% $ 711.72

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

$ 690.37 USD
Free Shipping
Sale - Save 3%
$ 711.72

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

$ 690.37 USD
Free Shipping

It’s no secret that BMW’s suffer from weak, failure prone front thrust arm bushings.  The stock rubber bushings are designed to allow significant fore/aft movement of the front wheels and are fluid filled to help absorb road impacts.  This compliant design maximizes daily driving comfort and helps add to the “luxury” feeling of your BMW, but it also contributes to the numb, disconnected feeling that many enthusiasts complain about with modern BMW’s.  Not only is the OEM design far from ideal for the street or racing enthusiast that is looking for optimal handling and braking performance, the constant twisting and deflection required of the rubber bushing often causes premature failure, resulting in degraded handling, wheel shimmy, delayed steering response, delayed braking response, unwanted alignment change, and poor tire wear.

Introducing the new Turner Thrust Arm Ball Joints!  The Turner engineering team set out to design a solution that offers far superior durability when compared to OEM, requiring no modification and offering nearly instantaneous cornering and braking response for the absolute best road feel and driving experience possible.  Our thrust arm monoballs utilize a sealed OEM BMW ball joint for exceptional quality and durability.  The bearing assembly is precision CNC machined from 6061-T6 anodized aluminum and features a knurled OD to ensure a perfect press fit and longest lasting component life possible. 

By utilizing a sealed ball joint, Turner achieved the ultimate in terms of low friction no bind suspension travel with no unwanted deflection, providing exceptional steering precision, turn-in response, and direct braking feedback; all while maintaining exceptional comfort and durability levels making these an excellent no compromise upgrade even for a street car.  These thrust arm monoball / ball joints are a must have for any track car, but are also completely street-able and are a great upgrade for any enthusiast that enjoys spirited driving.

 

 

 

 

Features:

Ball Joint / monoball

- OEM BMW sealed, greased ball joint for exceptional durability and service life, even in the most severe operating conditions

Housing

- 6061-T6 anodized housing for excellent corrosion resistance. 

- Proprietary Turner designed knurled OD to provide the perfect fit for the wide range of thrust arm bore diameters among brands. 

Bearing Inserts

- CNC machined 304ss, providing a precision fit between the ball joint and the subframe. 

Performance

- Nearly instantaneous, crisp steering and braking response.

- Maintenance free, long lasting performance. 

- Improved road feel without undesirable NVH.

Show More Show Less
Turner Motorsport Front control arm bearing set - E39 540i, M5 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
T#:399716
Part#: 022015TMSE39KT
In Stock at Vendor
Sale - Save 3% $ 669.99

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

$ 649.41 USD
Free Shipping
Sale - Save 3%
$ 669.99

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

$ 649.41 USD
Free Shipping

BMW’s are known to have failure prone front thrust arm bushings.  The flexible rubber bushings, even those found in M performance models, allow significant movement of the front wheels to maximize daily driving comfort, but also allow considerable alignment change.  This results in a disconnected and numb road feel, standing between you and a confidence inspiring driving experience. Eventually the fluid filled rubber bushings fatigue and crack due to continual deflection and ozone degradation, and eventually the damping fluid leaks out resulting in complete failure.

For the enthusiast looking for superior performance and longevity with a crisp, confidence-inspiring driving experience, our sealed ball joint monoballs are the best solution available!  Our experience with spherical front control arm ball joints goes back to those we designed and used in our IMSA E90 328i and E92 M3 race cars (GS class Champions in 2011). We wanted to offer as many BMW owners possible a similar level of handling, precision, and control for the track and street.

Utilizing a sealed OEM BMW ball joint for exceptional quality and durability, making them completely at home on both the street and track with no compromise.  We have done extensive street, autocross, and track testing to ensure the ball joint used in this bushing design excels in each setting. The advantage of a sealed ball joint is that it eliminates all unwanted deflection while still allowing complete bind-free movement throughout suspension travel, resulting in exceptional control of wheel alignment.  What you get is superior steering precision, turn-in response, direct braking feedback, and better handling.

In short, if you're seeking the ultimate in precise, predictable handling and control, with crisp braking response and a long service life that’s equally at home on the street or track - look no further. We have you covered.

 

 

 

 

 

We offer these control arms with the monoball bearings pre-installed for your convenience. Since BMW recommends the control arms be replaced for every other bushing change, we prefer to sell these as a pre-assembled set. The bushings are also available separately if you wish to source your own control arms.

 

Features:

Control Arm Bearing

  • CNC machined corrosion resistant 304 Stainless steel shell, bolt sleeves, & snap rings
  • Sealed spherical ball joint for long service life & maintained OE fitment
  • Suspension pre-load is no longer required when torquing the control arm hardware

 

Performance

  • Nearly instantaneous, crisp steering and braking response.
  • Maintenance free, long lasting performance.
  • Improved road feel without undesirable NVH.

 

Fits the following BMW models:

E39 -  540i, M5

 

Show More Show Less

Turner Motorsport Front Monoball Bearing Kit - E39 540i, M5, E38 740/...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
T#:399903
Part#: 022012TMS03KT
In Stock
Sale - Save 20% $ 718.99

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

$ 575.18 USD
Free Shipping
Sale - Save 20%
$ 718.99

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

$ 575.18 USD
Free Shipping

BMW’s are known to have failure prone front thrust arm bushings.  The flexible rubber bushings, even those found in M performance models, allow significant movement of the front wheels to maximize daily driving comfort, but also allow considerable alignment change.  This results in a disconnected and numb road feel, standing between you and a confidence inspiring driving experience. Eventually the fluid filled rubber bushings fatigue and crack due to continual deflection and ozone degradation, and eventually the damping fluid leaks out resulting in complete failure.

For the enthusiast looking for superior performance and longevity with a crisp, confidence-inspiring driving experience, our sealed ball joint monoballs are the best solution available!  Our experience with spherical front control arm ball joints goes back to those we designed and used in our IMSA E90 328i and E92 M3 race cars (GS class Champions in 2011). We wanted to offer as many BMW owners possible a similar level of handling, precision, and control for the track and street.

Utilizing a sealed OEM BMW ball joint for exceptional quality and durability, making them completely at home on both the street and track with no compromise.  We have done extensive street, autocross, and track testing to ensure the ball joint used in this bushing design excels in each setting. The advantage of a sealed ball joint is that it eliminates all unwanted deflection while still allowing complete bind-free movement throughout suspension travel, resulting in exceptional control of wheel alignment.  What you get is superior steering precision, turn-in response, direct braking feedback, and better handling.

In short, if you're seeking the ultimate in precise, predictable handling and control, with crisp braking response and a long service life that’s equally at home on the street or track - look no further. We have you covered.

 

 

 

 

 

 

 

We also offer these control arms with the monoball bearings pre-installed for your convenience. Since BMW recommends the control arms be replaced for every other bushing change, we prefer to sell these as a pre-assembled set. The bushings are also available separately if you wish to source your own control arms.

 

Control Arm Bearing

  • CNC machined corrosion resistant 304 Stainless steel shell, bolt sleeves, & snap rings
  • Sealed spherical ball joint for long service life & maintained OE fitment
  • Suspension pre-load is no longer required when torquing the control arm hardware

 

Thrust Arm Bearing:

  • OEM BMW sealed, greased ball joint for exceptional durability and service life, even in the most severe operating conditions
  • 6061-T6 anodized housing for excellent corrosion resistance
  • Proprietary Turner designed knurled OD to provide the perfect fit for the wide range of thrust arm bore diameters among brands
  • CNC machined 304ss, providing a precision fit between the ball joint and the subframe

 

Benefits of Both:

  • Nearly instantaneous, crisp steering and braking response.
  • Maintenance free, long lasting performance.
  • Improved road feel without undesirable NVH.

 

This item is an upgrade to the following BMWs: 
2004-2010 E83 X3 X3 2.5i, X3 3.0i, X3 3.0si, X3 xDrive30i
2000-2006 E53 X5 X5 3.0I, X5 4.4i, X5 4.6is, X5 4.8is
1997-2003 E39 5 series 540i, 540iT (sedans and touring wagon) 
2000-2003 E39 M5 sedan 
1995-2001 E38 7 series 740i, 740iL 
1995-2001 E38 7 series 750i, 750iL

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Turner Spherical Monoball Thrust Arm Bearing Set - E39 540i, M5, E38 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
T#:397170
Part#: 022012TMS01
In Stock
Sale - Save 27% $ 377.99

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

$ 276.72 USD
Free Shipping
Sale - Save 27%
$ 377.99

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

$ 276.72 USD
Free Shipping

BMW’s are known to have failure prone front thrust arm bushings.  The flexible rubber bushings, even those found in M performance models, allow significant movement of the front wheels to maximize daily driving comfort, but also allow considerable alignment change.  This results in a disconnected and numb road feel, standing between you and a confidence inspiring driving experience.  Eventually the fluid filled rubber bushings fatigue and crack due to continual deflection and ozone degradation, and eventually the damping fluid leaks out resulting in complete failure. 

For the enthusiast looking for superior performance and longevity with a crisp, confidence-inspiring driving experience, our sealed ball joint monoballs are the best solution available!  Our experience with spherical front control arm ball joints go back to those we designed and used in our IMSA E90 328i and E92 M3 racecars (GS class Champions in 2011).  We wanted to offer E31, E32, E34, E38, E39, E53, E60, E63, E64, and E83 owners similar levels of handling precision and control for the track and street. 

The bearing housing is precision CNC machined from 6061-T6 anodized aluminum and features a knurled OD to ensure a perfect press fit, and utilize a sealed OEM BMW ball joint for exceptional quality and durability, making them completely at home on both the street and track with no compromise.  We have done extensive street, autocross, and track testing to ensure the ball joint used in this bushing design excels in each setting.  The advantage of a sealed ball joint is that it eliminates all unwanted deflection while still allowing complete bind-free movement throughout suspension travel, resulting in exceptional control of wheel alignment.  What you get is superior steering precision, turn-in response, direct braking feedback, and better handling.

In short, if you're seeking the ultimate in precise, predictable handling and control, with crisp braking response and a long service life that’s equally at home on the street or track - look no further. We have you covered.


We offer these thrust arms with the monoball bushings pre-installed for your convenience. Since BMW recommends the control arms be replaced for every other bushing change, we prefer to sell these as a pre-assembled set. The bushings are also available separately if you wish to source your own control arms.

Features:

Bearing housing

  • Precision CNC machined from 6061-T6 blue anodized aluminum
  • Knurled OD to provide the perfect fit for the wide range of thrust arm bore diameters among brands.
  • CNC machined 304ss ball joint sleeve inserts, providing a precision fit between the ball joint and the subframe. 

Bearing

  • OEM BMW sealed and greased ball joint for exceptional durability and service life.

Performance

  • Nearly instantaneous, crisp steering and braking response.
  • Maintenance free, long lasting performance. 
  • Improved road feel without undesirable NVH.


This item is an upgrade to the following BMWs: 
2004-2010 E83 X3 X3 2.5i, X3 3.0i, X3 3.0si, X3 xDrive30i
2000-2006 E53 X5 X5 3.0I, X5 4.4i, X5 4.6is, X5 4.8is
1997-2003 E39 5 series 540i, 540iT (sedans and touring wagon) 
2000-2003 E39 M5 sedan 
1995-2001 E38 7 series 740i, 740iL 
1995-2001 E38 7 series 750i, 750iL 

 

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Turner Motorsport Front control arm bearing set (FCAB)-E39/E38/E60/E6...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
T#:397546
Part#: 022015TMS02
Ships on Oct 15, 2026
$ 309.69 USD
Free Shipping
$ 309.69 USD
Free Shipping

BMW’s are known to have failure prone front thrust arm bushings (FCAB).  The flexible rubber bushings, even those found in M performance models, allow significant movement of the front wheels to maximize daily driving comfort, but also allow considerable alignment change.  This results in a disconnected and numb road feel, standing between you and a confidence inspiring driving experience. Eventually the fluid filled rubber bushings fatigue and crack due to continual deflection and ozone degradation, and eventually the damping fluid leaks out resulting in complete failure.

For the enthusiast looking for superior performance and longevity with a crisp, confidence-inspiring driving experience, our sealed ball joint monoballs are the best solution available!  Our experience with spherical front control arm ball joints goes back to those we designed and used in our IMSA E90 328i and E92 M3 race cars (GS class Champions in 2011). We wanted to offer as many BMW owners possible a similar level of handling, precision, and control for the track and street.

Utilizing a sealed OEM BMW ball joint for exceptional quality and durability, making them completely at home on both the street and track with no compromise.  We have done extensive street, autocross, and track testing to ensure the ball joint used in this bushing design excels in each setting. The advantage of a sealed ball joint is that it eliminates all unwanted deflection while still allowing complete bind-free movement throughout suspension travel, resulting in exceptional control of wheel alignment.  What you get is superior steering precision, turn-in response, direct braking feedback, and better handling.

In short, if you're seeking the ultimate in precise, predictable handling and control, with crisp braking response and a long service life that’s equally at home on the street or track - look no further. We have you covered.

 

 

 

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We offer these control arms with the monoball bearings pre-installed for your convenience. Since BMW recommends the control arms be replaced for every other bushing change, we prefer to sell these as a pre-assembled set. The bushings are also available separately if you wish to source your own control arms.

 

Features:

Control Arm Bearing

  • CNC machined corrosion resistant 304 Stainless steel shell, bolt sleeves, & snap rings
  • Sealed spherical ball joint for long service life & maintained OE fitment
  • Suspension pre-load is no longer required when torquing the control arm hardware

 

Performance

  • Nearly instantaneous, crisp steering and braking response.
  • Maintenance free, long lasting performance.
  • Improved road feel without undesirable NVH.

 

**Click here for installation instructions**

 

 

Fits the following BMW models:

E39 - all models, 525i, 528i, 530i, 540i, M5
E38 - all 740i 740il 750il
E60/61 - RWD 525i 528i 530i 545i 550i
E63/64 - all 645/650i/ci
E53 - all 3.0i 4.4i 4.6is 4.8is
E83 - all   

 

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