Dorman 528-320 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper Rearward or Rear Right Upper Rearward
Dorman 528-320 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper Rearward or Rear Right Upper Rearward
Dorman 528-320 Rear Upper Control Arm
Dorman 528-320 is a direct replacement suspension control arm and ball joint assembly for select Lexus rear suspension applications. It is built for the rear left upper rearward and rear right upper rearward positions on Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, and GS300 models, with fitment spanning 2006-2015 depending on vehicle and trim.
With a steel tubular control arm, pre-greased construction, and an installed ball joint, this assembly is built to restore rear suspension geometry and steering response after wear or damage. The adjustable design and included bushings support proper alignment on the specified Lexus applications.
- Direct replacement for the original equipment control arm and ball joint assembly
- Fits rear left upper rearward and rear right upper rearward positions on select Lexus models
- Steel tubular control arm with black finish
- Pre-greased, with ball joint installed
- Includes bushings and mounting hardware
- Ball joint uses a bolt-in mounting type with threaded stud
- Adjustable design for alignment correction on the listed applications
- Rubber and steel bushing materials for suspension service
Fitment Details
Compatible With 2006-2015 Lexus IS250, rear left upper rearward and rear right upper rearward; 2013 Lexus IS250 C F Sport Submodel, rear left upper rearward and rear right upper rearward; 2006-2015 Lexus IS350, rear left upper rearward and rear right upper rearward; 2013 Lexus IS350 C F Sport Submodel, rear left upper rearward and rear right upper rearward; 2011-2012 Lexus IS F, rear left upper rearward and rear right upper rearward; 2007-2011 Lexus GS350, rear left upper rearward and rear right upper rearward; 2007-2011 Lexus GS450h, rear left upper rearward and rear right upper rearward; 2008-2011 Lexus GS460, rear left upper rearward and rear right upper rearward; 2007 Lexus GS430, rear left upper rearward and rear right upper rearward; 2006 Lexus GS300, rear left upper rearward and rear right upper rearward, from 7/05; 2006 Lexus GS430, rear left upper rearward and rear right upper rearward, from 7/05.
This part cross-references Mevotech Supreme CMS861056 for the same application.
What It Helps Restore
- Rear suspension looseness caused by worn control arm bushings
- Clunking or knocking from the rear suspension area
- Uneven tire wear related to rear alignment issues
- Directional instability during braking or cornering
- Excess play from a worn ball joint assembly
Installation Notes
Verify the rear left or rear right upper rearward position before ordering, since this assembly is side-specific by application. Confirm model year, trim, and any notes such as the 2013 C F Sport submodel or 2006 vehicles built from 7/05. After installation, perform a professional wheel alignment to set rear suspension geometry correctly.
Quality Assurance
Dorman evaluates this suspension control arm and ball joint assembly through an industry-focused validation process to support smooth ride quality, directional stability, and predictable suspension behavior on the listed Lexus applications.
Original: $60.58
-65%$60.58
$21.20Dorman 528-320 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper Rearward or Rear Right Upper Rearward
Dorman 528-320 Rear Upper Control Arm
Dorman 528-320 is a direct replacement suspension control arm and ball joint assembly for select Lexus rear suspension applications. It is built for the rear left upper rearward and rear right upper rearward positions on Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, and GS300 models, with fitment spanning 2006-2015 depending on vehicle and trim.
With a steel tubular control arm, pre-greased construction, and an installed ball joint, this assembly is built to restore rear suspension geometry and steering response after wear or damage. The adjustable design and included bushings support proper alignment on the specified Lexus applications.
- Direct replacement for the original equipment control arm and ball joint assembly
- Fits rear left upper rearward and rear right upper rearward positions on select Lexus models
- Steel tubular control arm with black finish
- Pre-greased, with ball joint installed
- Includes bushings and mounting hardware
- Ball joint uses a bolt-in mounting type with threaded stud
- Adjustable design for alignment correction on the listed applications
- Rubber and steel bushing materials for suspension service
Fitment Details
Compatible With 2006-2015 Lexus IS250, rear left upper rearward and rear right upper rearward; 2013 Lexus IS250 C F Sport Submodel, rear left upper rearward and rear right upper rearward; 2006-2015 Lexus IS350, rear left upper rearward and rear right upper rearward; 2013 Lexus IS350 C F Sport Submodel, rear left upper rearward and rear right upper rearward; 2011-2012 Lexus IS F, rear left upper rearward and rear right upper rearward; 2007-2011 Lexus GS350, rear left upper rearward and rear right upper rearward; 2007-2011 Lexus GS450h, rear left upper rearward and rear right upper rearward; 2008-2011 Lexus GS460, rear left upper rearward and rear right upper rearward; 2007 Lexus GS430, rear left upper rearward and rear right upper rearward; 2006 Lexus GS300, rear left upper rearward and rear right upper rearward, from 7/05; 2006 Lexus GS430, rear left upper rearward and rear right upper rearward, from 7/05.
This part cross-references Mevotech Supreme CMS861056 for the same application.
What It Helps Restore
- Rear suspension looseness caused by worn control arm bushings
- Clunking or knocking from the rear suspension area
- Uneven tire wear related to rear alignment issues
- Directional instability during braking or cornering
- Excess play from a worn ball joint assembly
Installation Notes
Verify the rear left or rear right upper rearward position before ordering, since this assembly is side-specific by application. Confirm model year, trim, and any notes such as the 2013 C F Sport submodel or 2006 vehicles built from 7/05. After installation, perform a professional wheel alignment to set rear suspension geometry correctly.
Quality Assurance
Dorman evaluates this suspension control arm and ball joint assembly through an industry-focused validation process to support smooth ride quality, directional stability, and predictable suspension behavior on the listed Lexus applications.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dorman 528-320 Rear Upper Control Arm
Dorman 528-320 is a direct replacement suspension control arm and ball joint assembly for select Lexus rear suspension applications. It is built for the rear left upper rearward and rear right upper rearward positions on Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, and GS300 models, with fitment spanning 2006-2015 depending on vehicle and trim.
With a steel tubular control arm, pre-greased construction, and an installed ball joint, this assembly is built to restore rear suspension geometry and steering response after wear or damage. The adjustable design and included bushings support proper alignment on the specified Lexus applications.
- Direct replacement for the original equipment control arm and ball joint assembly
- Fits rear left upper rearward and rear right upper rearward positions on select Lexus models
- Steel tubular control arm with black finish
- Pre-greased, with ball joint installed
- Includes bushings and mounting hardware
- Ball joint uses a bolt-in mounting type with threaded stud
- Adjustable design for alignment correction on the listed applications
- Rubber and steel bushing materials for suspension service
Fitment Details
Compatible With 2006-2015 Lexus IS250, rear left upper rearward and rear right upper rearward; 2013 Lexus IS250 C F Sport Submodel, rear left upper rearward and rear right upper rearward; 2006-2015 Lexus IS350, rear left upper rearward and rear right upper rearward; 2013 Lexus IS350 C F Sport Submodel, rear left upper rearward and rear right upper rearward; 2011-2012 Lexus IS F, rear left upper rearward and rear right upper rearward; 2007-2011 Lexus GS350, rear left upper rearward and rear right upper rearward; 2007-2011 Lexus GS450h, rear left upper rearward and rear right upper rearward; 2008-2011 Lexus GS460, rear left upper rearward and rear right upper rearward; 2007 Lexus GS430, rear left upper rearward and rear right upper rearward; 2006 Lexus GS300, rear left upper rearward and rear right upper rearward, from 7/05; 2006 Lexus GS430, rear left upper rearward and rear right upper rearward, from 7/05.
This part cross-references Mevotech Supreme CMS861056 for the same application.
What It Helps Restore
- Rear suspension looseness caused by worn control arm bushings
- Clunking or knocking from the rear suspension area
- Uneven tire wear related to rear alignment issues
- Directional instability during braking or cornering
- Excess play from a worn ball joint assembly
Installation Notes
Verify the rear left or rear right upper rearward position before ordering, since this assembly is side-specific by application. Confirm model year, trim, and any notes such as the 2013 C F Sport submodel or 2006 vehicles built from 7/05. After installation, perform a professional wheel alignment to set rear suspension geometry correctly.
Quality Assurance
Dorman evaluates this suspension control arm and ball joint assembly through an industry-focused validation process to support smooth ride quality, directional stability, and predictable suspension behavior on the listed Lexus applications.
