Control Arm with Ball Joint Pair - 1ASFK00550

Warranty & Shipping
Product Reviews
Vehicle Fit

Part Details

  • Quantity:   Pair


  • Comes as a PAIR
    • Fits both the LH (Driver Side) & RH (Passenger Side) FRONT UPPER
  • Complete assemblies
    • Include ball joints, bushings, & upper shafts
  • Direct replacements
  • Built to strict quality control standards
  • Fit both 2WD & 4WD Models


Our control arms are designed to be direct replacements for the original factory parts.  They are 100% brand new and require no modifications for installation.  No special tools are required because all of the bushings come pre-installed.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

4.92/ 5.0
13 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Control arms work great!
I installed the control arms yesterday and they went on without any problems and seem to be working just great!
March 2, 2017
Upper control arms
Perfect fit and good to go out of the box. Looked amazing.
March 9, 2017
2004 Ford Explorer upper control arms
Very happy with my order. From start to finish. Ordering was easy. Shipping was fast. Product fit perfectly. I previously ordered a set on eBay for $55 but when it arrived, the ball joint bolt was too thick and wouldnt fit. But the 1aauto set was just a delight! And I really enjoyed the YouTube video of the how-to tutorial how to install. Thanks
July 25, 2017
perfect fit
when I knew control arms were needed I watched the video several of them and decided it was something I could do. I was surprised at how little they cost and thought about buying the package with the lower ball joints until I found I would need a press. Before the parts arrived I sprayed the nuts etc. also after I removed the wheel I removed the complete fender well plastic. removeing that made it a snap Took it for an alignment and all they had to do was set toe..
August 29, 2017
Great parts
I was skeptical but these parts where great! They came with everything I needed and the instructional video was well done. I will from now on shop here first for my car parts. Thanks
September 14, 2017
Perfect Fit
Pleasingly surprised with both quality and price. Made quite a difference with the handling and ride. When it comes to buying part for your vehicle you cant beat A1 Auto. You will never be disappointed.
October 8, 2017
Helped me save money
I came across 1aauto YouTube video in reference to the upper support arm and installation. I went to their website and found what I needed, ordered it, and received it within 3 days. A local company wanted to charge me $610 to replace the part. Thanks to 1aauto parts and video I was able to save me over $400.
November 24, 2017
2002 Ford Explorer upper control arm /ball joints
Grape parts prices were fantastic, the video was excellent easy to do followed it, saved$700 in parts and labor, thanks
February 1, 2018
First time buyer/lifetime buyer
Not only were the parts top quality but the how to videos made doing the work on my truck easy. Thank you 1A Auto.
April 3, 2018
Upper COntrol Arms
Worked perfectly and helped me make quick work of the repair. Perfect price, video online was very helpful.
May 14, 2018
Ford explorer 2002
Beautiful perfect fit and fast shipping thank you I will recommend to anyone this is a excellent part.
September 3, 2018
It came very quickly through the mail. It was a very good price. Just what I was looking for.
October 4, 2018
Excellent problems...good parts...good fit...easy transaction...overall great service...
November 16, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Do you get driver side and passenger side for 81.00 ?
Richard W December 24, 2016
Yes , it is. Good parts , ship and easy instalation.
Pablo A December 24, 2016
I dont remember exact cost but I did by the pair and they were excellent quality and I swapped both out even though passenger side didnt seem to need replacing. They are still holding up great. The video showing how to install is spot on
Robert W C December 24, 2016
Yes you get both sides
Josh J December 24, 2016
Yes. Its a pair and each side uses the same part. Super easy job.
Ryan B December 24, 2016
That is correct.
Tim C December 25, 2016
bought both sides. Good deal great service.
James A December 25, 2016
yes, driver and passenger side are in the kit
Brian F December 28, 2016
Do the upper ball joints come with the grease fittings?
Jeremiah S April 3, 2018
These ball joints are sealed and pre-greased from factory. They are not serviceable.
Tim K April 3, 2018
Year Make Model Description
2002-2005Ford Explorer Ford Explorer 4 Door Front Upper Control Arm with Ball Joint Pair
2003-2005Lincoln Aviator Lincoln Aviator Front Upper Control Arm with Ball Joint Pair
2002-2005Mercury Mountaineer Mercury Mountaineer Front Upper Control Arm with Ball Joint Pair
Part #: 1ASFK00550

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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