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29860940
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Motor for electric parking brake (EPB).
The parking brake actuator motor translates signals from the vehicle’s electronic control module or EPB switch into mechanical movement that engages or disengages the parking brake. As part of the braking system, this motor helps hold the vehicle securely when parked - even on inclines - and works seamlessly with other vehicle safety systems.

Fits:
Porsche 981 Boxster / S 2012 - 2016
Porsche 981 Cayman / S 2014 - 2016
Porsche 981 Cayman GT4 2016

Porsche 718 (982) Boxster / S 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman / S 2017>>
Porsche 718 (982) Cayman GT4 2019>>

Diagram ref no 6

These parking brake actuator motors are factory-original Porsche units engineered to control the application and release of the electric parking brake. They are part of the EPB system that replaces traditional mechanical cables with electric servos that clamp the rear brake pads when the parking brake is activated. These components are designed and built by Porsche, ensuring perfect fit, correct electrical characteristics, and long-term durability.

Function:
   Electric actuation: Uses a motor to control lever or caliper movement for the parking brake.
   Precision control: Provides consistent braking force without manual cable operation.
   System communication: Interfaces with the vehicle’s onboard control modules to ensure accurate brake application and release.
   Durability: Designed to withstand repeated operation and exposure typical of parking brake use. 

A failed electronic parking brake actuator can lead to:
  Parking brake that will not engage or release
  EPB warning or fault messages on the dash
  Loss of hill-hold or auto-hold functionality
  Reduced parking safety.
Replacing a faulty actuator with the correct Genuine Porsche part restores proper EPB operation and maintains the vehicle’s original braking performance and safety levels.

Consider replacing the parking brake actuator motor if you notice:
  EPB system warning lights 
  Parking brake that won’t engage/disengage
•  Unusual noises during park-brake operation
  Loss of related safety functions (hill hold, auto-hold).

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Related, superseded, cross reference or alternative numbers for comparison.

29860940
97035209105
97035209205
298609403
298609404

The product you are viewing cross references to these numbers
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29860940
Product Information
Product Information
Motor for electric parking brake (EPB).
This motor is a direct replacement for the factory units that activate the electronic parking brake system on the rear axle.

Fits:
Porsche 981 Boxster / S 2012 - 2016
Porsche 981 Cayman / S 2014 - 2016
Porsche 981 Cayman GT4 2016

Porsche 718 (982) Boxster / S 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman / S 2017>>
Porsche 718 (982) Cayman GT4 2019>>

Diagram ref no 6

The parking brake actuator motor is a small electric drive unit that applies and releases the rear parking brake mechanism when commanded by the vehicle’s control module. When you activate the EPB via the cabin switch, this motor translates that signal into mechanical movement - engaging or releasing the parking brake pads. This ensures your vehicle remains securely parked, even on inclines, and integrates smoothly with auto-hold or hill-hold features.

Function:
  Activates & releases the electronic parking brake when commanded via switch or control module.
  Provides controlled parking brake engagement without under-floor mechanical cables.
  Interfaces with vehicle stability systems, enhancing safety and convenience.

Over time the parking brake actuator motor can fail due to wear, moisture ingress, or electrical issues. A failing unit can lead to:
  Parking brake that fails to engage or disengage
  Warning lights or EPB fault messages on the dash
  Loss of auto-hold or hill-hold functionality.
Replacing it with an OE Match quality motor restores correct operation and avoids the inconvenience and safety concerns of a malfunctioning electric parking brake.

Replace the actuator motor if you experience:
  Inability to apply the parking brake
  EPB warning on the dashboard
  Parking brake engages unevenly or intermittently
  Strange noises from rear brakes during EPB operation
  Failure of auto-hold/hill-hold systems associated with the parking brake

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

29860940
298609404
298609403
97035209105
97035209205

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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About Electric parking brake

Porsche Electric Parking Brake | Design911 Precision Replacement Parts for Safety, Control & Reliability

The electric parking brake (EPB) is a key part of your Porsche’s modern braking system, replacing traditional handbrakes with an electronically controlled mechanism that provides consistent and effortless operation. Using electronic actuators and sensors, it applies and releases brake pressure automatically or via a button, ensuring secure parking and stability on all gradients. When these components fail, warning lights, uneven braking, or parking issues can occur — making prompt replacement essential for safety and peace of mind.

At Design911, we supply a wide selection of electric parking brake components, including actuators, control units, and sensors. Each part is designed for precise integration with your vehicle’s braking and electronic systems, delivering reliability and performance under all driving conditions. Perfect for routine servicing, repairs, or electronic system restorations, our EPB components maintain your Porsche’s convenience, safety, and control.

What Does the Electric Parking Brake Do?

The electric parking brake provides secure vehicle holding power and enhanced driver convenience through an electronically controlled system.

Core Functions:
• Applies and releases the parking brake automatically or via button control.
• Holds the vehicle securely when parked or on steep inclines.
• Integrates with stability and hill-hold systems for added safety.
• Monitors and adjusts braking force using electronic sensors.
• Prevents vehicle roll-back during starts on slopes.

This system combines modern electronics with Porsche’s precision engineering to deliver safety, comfort, and seamless control.

Why Do Electric Parking Brake Components Fail or Degrade?

Like any electronically controlled system, EPB components can experience wear or malfunction over time due to environmental exposure, mechanical wear, or electrical faults.

Common Causes of Failure Include:
• Electronic actuator failure from moisture or corrosion.
• Sticking or seized cables due to contamination or rust.
• Faulty sensors or wiring issues causing dashboard errors.
• Control unit malfunction or signal interruption.
• Mechanical wear within the caliper-integrated mechanism.

When failure occurs, drivers may notice warning lights, reduced braking power, or the inability to engage or release the parking brake — all of which require immediate attention.

Why Replace or Upgrade Your Porsche Electric Parking Brake?

Replacing worn or malfunctioning EPB components restores full electronic control and braking reliability. Design911’s precision-engineered parts are built to ensure compatibility, smooth operation, and long-term dependability across Porsche models.

Key Benefits:
• Restores safe, consistent electronic parking brake performance.
• Prevents dashboard errors and parking brake malfunctions.
• Engineered for durability and corrosion resistance.
• Direct-fit design for simple, reliable installation.
• Fully compatible with Porsche electronic systems.
• Ideal for maintenance, replacement, or system restoration.

Design911’s Porsche electric parking brake components combine precision engineering and reliability — ensuring your Porsche performs with safety, confidence, and technological refinement.

Highlights

• High-quality Porsche electric parking brake actuators and parts.
• Precision-engineered for seamless electronic integration.
• Corrosion- and heat-resistant materials for long-term durability.
• Compatible with modern Porsche braking and control systems.
• Perfect for servicing, maintenance, or system upgrades.
• Restores reliable parking security and performance.

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