Dorman 527-487 front left lower control arm with ball joint for the 2021-2025 Chevrolet Trailblazer and other vehicles holds the front left wheel in position while the suspension moves. This Dorman suspension control arm and ball joint assembly is a direct replacement for the original assembly.
- Stamped steel arm with rubber bushings and a polymer bearing
- Painted finish with additional coatings for rust and corrosion resistance
- Press-in ball joint with a threaded stud and a dust boot
- Tested for a smooth ride, directional stability and predictable dynamics
- Part of the Dorman OE Solutions line
Quick facts
- Part: Dorman 527-487 control arm with ball joint
- Also called: control arm and ball joint assembly
- Fits: 2021-2025 Chevrolet Trailblazer and other vehicles
- Position: Front left lower
- Material: Steel control arm with rubber bushings
- Condition: New
Clunking over bumps, uneven tire wear or loose steering can mean the control arm, ball joint or bushings are worn, though a worn sway bar link or strut mount can sit behind the same symptoms, so find the cause before replacing anything.
Fits
This Dorman lower control arm is the front left assembly for the 2021-2025 Chevrolet Trailblazer, the 2024-2025 Chevrolet Trax and the 2020-2025 Buick Encore GX. The front axle takes one arm per side; this listing is the front left, the front right is ordered separately, and the pair is normally replaced at the same time.
Specifications
Fit and size
- Position: front left lower
- Quantity: 1 for the front left
- Length: 352 mm
- Maximum width: 311 mm
- Distance between bushings: 311 mm
- Bushing inside diameter: 12.2 mm
- Bushing lengths: 60 mm and 65.5 mm
- Ball joint cone outside diameter: 12.6 mm
- Ball joint stud length: 33.6 mm
- Thread: 12 mm diameter, 1.75 mm pitch, right-hand
Build and materials
- Construction: stamped
- Control arm material: steel
- Bushing material: rubber
- Bearing material: polymer
- Finish: painted
- Ball joint mounting: press in, threaded stud
- Grade: standard replacement
- Condition: new
- Country of origin: China
In the box
One control arm and one locking nut. A castle nut, cotter pin and grease fitting are not included, so plan on new fasteners where your setup needs them.
Installation notes
- Ball joint and bushings come pre-installed, saving time and labor.
- The ball joint comes pre-greased.
Interchange: CA13110 · 42742494 · 42762056 · CMS501353 · 2609020
This part cross-references / interchanges with the following part numbers:
CA13110, 42742494, 42762056, CMS501353, 2609020
Frequently Asked Questions
Is this the right control arm for a 2021-2025 Chevrolet Trailblazer?
Yes. Dorman 527-487 is the front left lower control arm with ball joint for the 2021-2025 Chevrolet Trailblazer. If yours is a different car, look it up in the "Vehicles it fits" section.
Does this Dorman control arm come with the ball joint and a nut?
Yes. Dorman 527-487 comes with the ball joint already installed and one locking nut. A castle nut, cotter pin and grease fitting are not included.
Are the Dorman control arm bushings on this arm rubber?
Yes. The bushings on this arm are rubber and come pre-installed, and the bearing material is polymer.
What are signs the ball joint on this front lower control arm is worn?
A torn dust boot, cracked or split rubber bushings and a clunk over bumps are common signs of wear. A shop can check the ball joint for play.
Does Dorman 527-487 interchange with part number 42742494?
Yes. 42742494 is one of the numbers that Dorman 527-487 replaces.
