Wishbone Genuine Porsche part 9J1407021A

Front upper wishbone. 
The Porsche Genuine OE Front Upper Wishbone / Control Arm (Part No. PAD407021A) is an original factory front suspension upper control arm designed for the Porsche Taycan (9J1) platform. Also commonly referred to as a wishbone or upper suspension arm, this component forms a critical part of the Taycan’s advanced front suspension system. It is supplied complete with integrated ball joint and suspension bushes for precise OEM fitment and performance
Sold individually, fits both left and right front suspension positions

Fits:
Porsche 9J1.1 Taycan 2020 - 2024
Porsche 9J1.2 Taycan 2024 >>

Diagram ref no 13

The upper control arm guides and stabilises wheel movement while allowing controlled suspension articulation during steering, braking, and cornering.

It connects the steering knuckle to the chassis/subframe and helps maintain:
•  Accurate wheel alignment
•  Steering precision
•  Suspension geometry
•  High-speed stability

The integrated bushes help absorb vibration and road harshness, while the ball joint allows smooth suspension and steering movement. This is especially important on the high-performance and heavy-load suspension system used on the electric Porsche Taycan.

Functions & Technical Role
•  Suspension geometry control: Maintains correct wheel movement and alignment
•  Integrated ball joint: Allows smooth steering and suspension articulation
•  Vibration damping: Bushes reduce noise and harshness transferred to the chassis
•  Handling stability: Supports precise steering response and road holding
•  OEM engineering: Manufactured to Porsche factory tolerances for exact fitment and durability

Fitment / Position on car
•  Fitting position: Front axle upper
•  Side: Left = Right
•  System: Front suspension and steering geometry control

The upper control arm plays a major role in steering accuracy, suspension stability, and tyre wear control. Worn bushes or ball joints can negatively affect handling, ride comfort, and wheel alignment.

When to replace
•   Knocking or clunking from the front suspension
•   Excessive play in the ball joint or bushes
•   Uneven tyre wear or alignment problems
•   Steering instability or vague handling
•   During suspension rebuild or accident repair

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAD407021A

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Front upper wishbone
This OE Match front upper wishbone is a direct replacement for the original Porsche suspension component fitted to Porsche 9J1 Taycan models from 2020 onwards. It forms a key structural component of the front suspension system, maintaining wheel alignment, steering precision, and chassis stability.
Sold individually, fits both left and right front suspension positions

Fits:
Porsche 9J1.1 Taycan 2020 - 2024
Porsche 9J1.2 Taycan 2024 >>

Diagram ref no 13

The front upper wishbone controls wheel movement and maintains proper suspension geometry during driving. It supports stable handling, precise steering response, and consistent tyre contact with the road surface.

It is ideal for suspension refurbishment, accident repair, alignment correction, or replacement of worn original suspension arms.

Function
•  Maintains correct front suspension geometry
•  Controls wheel movement during suspension travel
•  Supports precise steering response and handling stability
•  Absorbs braking, cornering, and road impact forces
•  Helps reduce uneven tyre wear and suspension instability

Over time, suspension wishbones and their integrated joints can wear due to repeated suspension loading, road impact, and vibration. A worn or damaged control arm may cause suspension noise, poor steering response, uneven tyre wear, or unstable handling characteristics. Replacing worn suspension arms restores factory suspension performance, steering precision, and overall chassis stability.

When to replace
•  Clunking or knocking noises from front suspension
•  Uneven tyre wear or wheel alignment issues
•  Excessive steering play or unstable handling
•  Bent or damaged suspension arm after impact
•   Worn bushings or ball joint movement
•   During suspension rebuild or accident repair

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAD407021A

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Upper wishbone on front suspension.
Left or right.

Fits:
Porsche 971.1 Panamera 2017 - 2021
Porsche 971.2 Panamera 2021 - 2023
Porsche 976 Panamera 2024 >>

Diagram ref no 8

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAE407021

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