


The control arm, also known as a suspension arm, is an important component of the front suspension system. It connects the wheel hub assembly to the subframe or vehicle body through ball joints and bushings. The control arm helps keep the wheel in a stable position while allowing the suspension to move freely over uneven roads.
During use, the control arm can bend due to an impact, its bushings can crack or wear out, and the ball joint can develop play after extended use. This damage may affect steering control, vehicle stability and tire wear.
Part KB7W34350F is the driver-side (LH) version, listed for 2018–2022 Mazda CX-5 models according to the information provided. This is an OEM part intended as a replacement when the original component is damaged. Confirm the correct vehicle configuration before ordering.
Product name: Front Left Lower Control Arm
Part number: KB7W34350F
Replacement part numbers: KB7W34350A/ KB7W34350C
Brand: OEM
Vehicle: Mazda CX-5
Model years: 2018–2022
Installation position: Front suspension, driver side (LH)
System: Suspension and steering
Part type: Suspension control arm
Condition: New
The control arm maintains the connection between the wheel and chassis, helping the suspension system operate as designed.
Maintains the wheel position and direction of movement as designed for the suspension system.
Allows the wheel to move up and down over uneven road surfaces.
Works with the ball joint and bushings to accommodate suspension movement.
Helps maintain vehicle stability and control while steering.
Part number KB7W34350F makes it easier to look up and cross-reference.
Driver-side (LH) version, distinct from the passenger-side control arm.
OEM part, a replacement option when the correct standards and specifications have been verified.
New condition, suitable for replacing a control arm with a bend, crack or damaged joint.
Inspect the front control arm on your Mazda CX-5 if you notice any of the following:
Clunking noises near the front wheel when driving over bumps.
The vehicle pulls to one side or the steering feels unstable.
Uneven front tire wear despite maintaining proper tire pressure.
The control arm bushings are cracked, torn or detached from their mounting points.
The control arm is bent or deformed, or the ball joint has play.
These symptoms may also be caused by tie rod ends, ball joints, shock absorbers or other suspension components. Have the system inspected to identify the part that needs replacement.
When replacing the control arm, also inspect the ball joint, bushings, tie rod ends and mounting bolt locations. After installation, check the wheel alignment and adjust the toe if needed to help prevent uneven tire wear and maintain stable handling.
To select the correct front left control arm for your Mazda CX-5, provide the VIN or the part number on the existing control arm. Phong Thinh Auto Parts can help look up and cross-reference part number KB7W34350F, and confirm the correct LH side and vehicle version before you order.
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