Control arm Front, SET OF 2. Porsche 991 / Boxster / Cayman

Control arm, FRONT.
This OE-Match suspension package includes two front lower control arms (2 × 99134104306), providing a complete left-and-right replacement for the front axle on Porsche 991, 981 Boxster, and 981/718 Cayman models. Engineered to replicate Porsche’s original geometry, material strength and bushing characteristics, this matched pair restores factory-correct steering precision, handling stability and suspension alignment.
SET OF 2, Left and right lower control arms.

Fits:
Porsche Boxster 981 2012 - 2016
Porsche Boxster 982 (718)  2017 >>
Porsche Cayman 981C 2014 - 2016
Porsche Cayman 982C (718C)  2017 >>
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.1 Turbo 2014 - 2016
Porsche 991.1 GT3 / GT3 RS 2014 - 2016
Porsche 991.2 Carrera 2016 - 2019
Porsche 991.2 Turbo 2016 - 2019
Porsche 991.2 R / GT3 4.0L / GT3 RS 4.0L 2016 - 2019

Diagram ref no 5

Replacing both sides as a pair ensures symmetrical suspension behaviour, consistent road feedback and balanced camber/toe control — essential for high-performance Porsche chassis dynamics.

These front lower control arms stabilise and locate the front wheels under braking, acceleration and cornering loads. They maintain consistent camber and toe geometry, absorb road vibrations and support precise steering response. As a matched pair, they ensure uniform suspension performance across the front axle.

With age, bushings soften and ball-joint interfaces wear, leading to unwanted movement, clunks, steering imprecision and alignment drift. Replacing both arms restores accurate suspension control, improves safety and brings back the crisp, predictable handling Porsche models are known for.

When to replace:
• Steering feels vague, unstable or wanders
• Knocking/clunking noises from the front suspension
• Uneven or accelerated front tyre wear
• Alignment cannot be held after adjustment
• Visible cracks or deterioration in control arm bushings
• Following installation of new shocks, springs or front suspension components

Related reference numbers
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99134104306

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