BMW Control Arm Replacements & Upgrades for BMW Z4 M Roadster S54 (2003-2008)

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Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. They do more than just keep the alignment in a constant spec - they are a vital locating component for the suspension itself. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals.

Most control arms for BMWs consist of an inner and outer ball joint made of plastic, rubber, Delrin, or metal and covered in grease with a rubber boot to seal it from the outside. The ball joint rotates and spins as the control arm goes through its movements and that will wear the ball joint and make it loose. The grease inside the housing can also get used up, evaporate, or become contaminated from moisture and foreign particles. As the ball joint becomes worn it can result in excess movement within the housing. Your steering and handling will become less precise and there is usually a light clunking or clicking sound. In rare and extreme cases the ball joint can separate from the control arm completely, leading to a total loss of suspension and steering control. You should have the ball joint play checked annually and replace them every 3-4 years. Most track organizations will not allow a car if they are older than three years.

Control arms also take abuse from impacts and handling forces. Aluminum control arms will generally bend and prevent an accurate alignment. Steel control arms will crack and fracture and require close inspection annually and replacement every 3-4 years.

We sell OE BMW, OEM, and performance upgrade control arms from proven manufacturers. The control arm is so important to a BMW suspension that we insist on only top quality brands and designs and will never sell a control arm based on price alone. We also have upgrade packages with superior designs and better bushing options and we have bundled these together with valuable package savings.

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Rod End Boot (14-18mm) - Priced Each
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Turner Motorsport - Corporate Logo
T#:599632
Part#: RERS3
In Stock
$ 27.99

This product was last offered at the strikethrough price on
03-27-2026

$ 19.99 USD
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$ 19.99 USD
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Extend the life of your heim joints with this flexible rubber protective boot. Designed to fit 14mm–18mm spherical bearings and rod ends, it shields critical components from dirt, moisture, and road debris. Keeping contaminants out helps ensure consistent performance and reduces wear over time.
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Genuine BMW Control Arm Hex Screw With Collar - 33326762875
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Genuine BMW - Corporate Logo
T#:60317
Part#: 33326762875
In Stock
8% off MSRP $ 10.27

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

$ 9.40 USD
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8% off MSRP
$ 10.27

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

$ 9.40 USD
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Genuine BMW Control Arm Hex Screw With Collar - M14X1,5X82-10.9 This item fits the following BMW Chassis: E82,E90,E92,E93,F22,F30,F31,F32,F33,F34,F36,I12 i8
Genuine BMW Rear Axle Hex Bolt - BMW E36 E46 E83 Z4
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Genuine BMW - Corporate Logo
T#:7928
Part#: 33171090824
In Stock
Sale - Save 25% $ 15.88

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

$ 11.91 USD
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Sale - Save 25%
$ 15.88

This product was last offered at the strikethrough price on
05-02-2026

$ 11.91 USD
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For use in the rear suspension M12x1.5x80mm Grade 10.9

Race Polyurethane Front control arm bushing Set - Z4
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Powerflex Black Series - Corporate Logo
T#:384007
Part#: PFF5-5601G-60BX2
Ships in 2 Business Days
$ 244.99 USD
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$ 244.99 USD
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Control arm bushings play a key role in connecting the wheels to the chassis of the vehicle. Tasked with keeping suspension geometry in check while absorbing noise, vibration, and harshness (NVH) factory rubber bushings were engineered to provide a balance of comfort and control. As a factory bushing ages, it becomes brittle and begins to harden. When this happens the bushing will actually shrink and allow excess play in the suspension joint. This is typically felt by a sudden jerk forward after the car comes to a stop and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushing with a full polyurethane unit or using a bushing insert, this play is eliminated since the suspension joint is being supported by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:
2006 - 2008 E86 Z4 3.0si Z4 M Coupe
2002 - 2008 E85 Z4 Roadster Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster

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PowerFlex Rear Upper & Lower Arm Outer Bushing - E36, E46, E83, Z4 ...
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Powerflex - Corporate Logo
T#:34147742
Part#: PFR5-4618H
Ships in 2 Business Days
$ 89.99 USD
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Managing dynamic toe and camber alignment under heavy cornering loads is critical to maintaining maximum tire contact patch
Whiteline Lower Inner Rear Front Control Arm Bushing - E9x, E46, Z4 ...
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Whiteline - Corporate Logo
T#:54388459
Part#: W52605
Ships in 3 Business Days
New Item
$ 66.99 USD
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Deflection at the front lower control arm rear pivot drastically alters dynamic toe and caster alignment under high-load braking and cornering

Rogue Engineering Adjustable Rear Control Arms
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Rogue Engineering - Corporate Logo
T#:34885415
Part#: RE.ARCA.2.RE
Ships in 9 Business Days
$ 395.00 USD
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TRW Lower Control Arm - Left
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TRW - Corporate Logo
T#:16940497
Part#: 31122282121
Ships on Jul 24, 2026
$ 149.99 USD
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Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals. For a street-driven car we advise yearly inspection and a full replacement every 3-4 years. For track-driven cars these should be inspected before every event and replaced every two years.
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Rear Camber Arm - E36, E46, Z4 - Group N (Reinforced)
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Genuine BMW Motorsport - Corporate Logo
T#:338369
Part#: 33327749778
Ships on Aug 7, 2026
Starting at $ 198.94 USD
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Starting at $ 198.94 USD
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Designed and built in-house at BMW Motorsport, these are stock rear camber arms from the E36 M3 that have been strengthened by welding a reinforment in between the wishbones. Stiffer than the stock units and still adjustable for camber. This arm is legal in many racing classes where an aftermarket arm is not permitted. Sold individually, two required per car.

For maximum adjustment solid aluminum camber arms, you may also want to check out our TMS E36/E46 Adjustable Rear Camber Arms .

This arm does not include a bushing, but you may choose add a bushing using the drop down below. For an additional charge, you can get the bushing pre-pressed into the arm, so it is ready to install on the car (no added shop time or hydraulic press required).

Sold Individually.
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Rear Control Arm Bushing - Priced Each
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Corteco - Corporate Logo
T#:15478733
Part#: 33321092247
Back Ordered
$ 11.99 USD
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If you're experiencing a less than stellar ride, a shaky steering wheel or suspension noise, your control arm bushings might need replaced.
Rein Rear Control Arm Bushing - E36, E46, E83, Z4
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:363435
Part#: 33321092247
Back Ordered
$ 28.99 USD
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Upper control arm to subframe bushing