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Steel Upper A-Arm Replacement for the Porsche® 928

Got the late-86+ upper control arms on Friday and installed them on Saturday. Your product is really nice. Install was easy. The handling feel seems noticeably improved, too. Thanks again - I look forward to doing more business in the future. Dave W.

Regarding turn-in, I found this to be GREATLY improved by installing the steel upper A-Arms which Carl sells. They are also lighter than factory and really make it far more connected. Colin J.
Carl, how the hell am I going to get my car to where I am content with driving it, when you keep coming up with these incredible over engineered "must have items". I started with your upgraded heater valve, then installed the solid steering bushings, then bought the aux electric fan, and then got your upgraded A-arms and I have to admit, I am more than happy with everyone one of your items I've installed. Sean T.

Just back from a 2500 km trip to the Nordschleife with my car. Ten laps on the circuit and all your suspension, brake and general performance upgrade parts worked really well. Thanks a lot for your effort! Its such a comfortable rocket to drive. Jan Frost U.

Lightweight, Strong, and Rebuildable!

Product Installation Services Available

Application: Porsche® 928 1986.5 - 95 all

Background: Porsche® changed from cast to forged upper A Arms in late '86 and the new upper arms were not designed to be serviceable. When your upper ball-joint wears out, they cannot be rebuilt. We do have a few professionally re-manufactured units at $419.00 each. This part is also still available (for the moment) from Porsche® and the suggested retail price on that is $926.00 EACH. You need two.

Description: Now 928 Motorsports offers an all-new replacement for the 928 lover - our Late-Model Steel Upper-A-Arm. Using the same techniques we use for race car suspensions, we created a jig with the exact dimensions of the Porsche® 928 arm, and have produced an all-steel welded unit with a high-grade greaseable ball joint in it. This is a bolt-in piece that requires no modification to your 928, and it is serviceable if need be at any time in the future.

Performance: The spherical ball joint we use provides more accurate placement of the top spindle than the common production ball-socket joint, and the solid bushings at the rear guarantee exact camber adjustment without the variables caused by the stock rubber bushings. These even out-perform a stock a-arm fitted with with polyurethane bushings, yet move with less effort through the suspension arc . Weight savings = 1.2 lbs of unsprung weight per side.

Two Models Available: Available in either Stock length or Competition lengths. Select the Stock length if you want to set up your alignment exactly to factory spec. Select the Competition length to add about 1.5 degrees of negative camber to your car for optimum cornering.

928 Motorsports Quality: Our part features a steel crossbar, oil-impregnated bronze bushings, and zirk fittings at the back. At the front, it's equipped with a premium removable and rebuildable ball joint for accurate camber placement and long life. The ball joint can be unscrewed and replaced completely without removing the A-arm. Silicone dust boots included.

Price is per PAIR, enough for both sides of one car.

  928 Owners often install these related parts at the same time:


Radiator Cap Style




Steel Upper A-Arm Replacement for the Porsche® 928


In Stock!   Typically Ships Same Day!

* Domestic US shipping shown. International shipping will be calculated based on location.


Phone: (920) 485-0928
Email: info@928motorsports.com

928 Motorsports, LLC - All Rights Reserved
Horicon, Wisconsin USA

928Motorsports.com - Performance Parts for your Porsche® 928