SKP SK521389 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Front Left Lower Control Arm Assembly

Replace worn suspension components with the SKP SK521389 suspension control arm and ball joint assembly for the front left lower position. This OE-style replacement is built for direct fitment on select Chevrolet, GMC, Isuzu, and Oldsmobile applications, including Trailblazer, Envoy, and Bravada models.

Key Features

• Suspension control arm and ball joint assembly for the front left lower position
• Direct-fit replacement for select 2002-2003 Chevrolet Trailblazer and Trailblazer EXT applications
• Also fits 2002-2003 GMC Envoy and Envoy XL, plus 2002-2003 Oldsmobile Bravada
• Fits 2003 Isuzu Ascender, front left lower, with 12 mm stabilizer bar link stud diameter
• SKP SK521389 cross-references Dorman OE Solutions 521-389 and MOOG RK620310 for the same application

Detailed Description

The SKP SK521389 is a suspension control arm and ball joint assembly made for the front left lower suspension position on select GM and Isuzu SUVs. It is a practical replacement for vehicles that need restored steering response, suspension geometry, and stable front-end operation. This part number, SK521389, is listed for 2002-2003 Chevrolet Trailblazer, 2002-2003 Chevrolet Trailblazer EXT, 2002-2003 GMC Envoy, 2002-2003 GMC Envoy XL, 2003 Isuzu Ascender with 12 mm stabilizer bar link stud diameter, and 2002-2003 Oldsmobile Bravada.

Fits 2002-2003 Chevrolet Trailblazer, front left lower. Fits 2002-2003 Chevrolet Trailblazer EXT, front left lower. Fits 2002-2003 GMC Envoy, front left lower. Fits 2002-2003 GMC Envoy XL, front left lower. Fits 2003 Isuzu Ascender, front left lower, with 12 mm stabilizer bar link stud diameter. Fits 2002-2003 Oldsmobile Bravada, front left lower.

What It Helps Address

• Front-end looseness or wandering
• Clunking or knocking from the lower suspension area
• Uneven tire wear caused by worn suspension geometry
• Steering instability during braking or cornering
• Excess play from a worn ball joint or control arm assembly

Installation Notes and Tips

Verify the vehicle’s position, model year, and the Isuzu Ascender stabilizer bar link stud diameter before ordering. Because this is a front left lower suspension component, alignment should be checked after installation to confirm proper suspension geometry and steering performance. Confirm all mounting points and related wear items during service.

Quality Assurance

SKP replacement suspension components are cataloged for direct application matching against OE-style references, including Dorman OE Solutions 521-389 and MOOG RK620310. Use the part number SK521389 to confirm the correct front left lower fitment for your vehicle.