Dorman 521-390 front right lower control arm with ball joint for the 2002-2003 Chevrolet Trailblazer and other vehicles holds the front right wheel in position as the suspension moves. This Dorman suspension control arm and ball joint assembly replaces the original assembly.
- Dorman OE Solutions line, standard replacement grade
- Ball joint and rubber bushings come pre-installed to save time and labor
- Boxed steel control arm, supplied pre-greased
- Press-in ball joint mounting with a threaded stud, 14 mm thread diameter
- Extra coatings for rust and corrosion resistance
Quick facts
- Part: Dorman 521-390 control arm with ball joint
- Also called: control arm and ball joint assembly
- Fits: 2002-2003 Chevrolet Trailblazer and other vehicles
- Position: Front right lower
- Material: Steel (control arm), rubber (bushings)
- Condition: New
A worn arm can show up as a clunk over bumps, steering that wanders, or cracked or torn bushings. These signs alone do not prove this arm is the problem; a worn tie rod end can feel much the same.
Fits
The 2002-2003 Chevrolet Trailblazer, the 2002-2003 Chevrolet Trailblazer EXT and the 2002-2003 GMC Envoy are among the vehicles it fits. If your car is not named here, look for it in the "Vehicles it fits" section. The front right position takes one arm. This listing is a single piece, the front left is a separate part, and both sides are normally replaced together.
Specifications
Fit and size
- Position: front right lower
- Quantity per position: 1
- Control arm maximum length: 237 mm
- Control arm maximum width: 288.5 mm
- Mounting hole diameter: 12.3 mm
- Mounting hole quantity: 1
- Ball joint stud length: 33.97 mm
- Ball joint thread diameter: 14 mm
Build and materials
- Construction: boxed
- Control arm material: steel
- Bushing material: rubber
- Ball joint: installed, press-in mounting, threaded stud
- Pre-greased: yes; grease fitting not included
- Grade: standard replacement
- Condition: new
- Country of origin: Turkey
In the box
One control arm with ball joint and mounting hardware. A grease fitting is not included.
Interchange: 102-7073 · 810-685006B · 623.66054
TC6234 · 15072944 · 15091390 · 15091392 · 15105776 · 15165151 · 15167263 · 15183145 · 15198487 · 19133554 · 25786780 · 25918965 · 89060577 · RK620309 · FA3019 · GS50155 · CMS50155 · 2606018 · 2606018M · 12CB50095 · X07CJ7212 · JTC2401
This part cross-references / interchanges with the following part numbers:
102-7073, 810-685006B, 623.66054, TC6234, 15072944, 15091390, 15091392, 15105776, 15165151, 15167263, 15183145, 15198487, 19133554, 25786780, 25918965, 89060577, RK620309, FA3019, GS50155, CMS50155, 2606018, 2606018M, 12CB50095, X07CJ7212, JTC2401
Frequently Asked Questions
Will this control arm fit a 2002-2003 Chevrolet Trailblazer?
Yes. Dorman 521-390 is listed for the 2002-2003 Chevrolet Trailblazer and the 2002-2003 Chevrolet Trailblazer EXT, in the front right lower position. Other vehicles are in the "Vehicles it fits" section.
Do the Dorman control arm bushings come installed?
Yes. The rubber bushings and the ball joint are pre-installed on this front right lower arm, which saves time and labor.
What is the ball joint stud size on this Dorman control arm?
On Dorman 521-390 the threaded ball joint stud has a 14 mm thread diameter and a stud length of 33.97 mm. The ball joint is a press-in type.
How do I know if I need a Dorman lower control arm?
A clunk over bumps, steering that wanders or uneven tire wear can mean a worn arm, bushing or ball joint. Have a shop inspect the suspension promptly.
Does Dorman 521-390 replace part number 15091390?
Yes. 15091390 is one of the numbers Dorman 521-390 replaces. Every other number it replaces is on the Interchange line.
