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D1921S
Product Information
Product Information

EBC Standard Front Brake Discs - D1921S
Sold as a pair

The EBC Standard Front Brake Discs are high-quality OEM-spec replacement brake discs designed for the Porsche 970 Panamera and 971 Panamera. Manufactured to meet or exceed factory standards, these discs restore smooth, reliable braking performance for everyday road use, making them an ideal solution for routine maintenance or brake system refresh.

FRONT Discs: D1921S
- Type: VENTED
- Diameter: 360mm
- Height: 66mm
- Thickness New / Min: 36 / 34

front
Fits:

  • Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
  • Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
  • Porsche 970.1 Panamera S V8 4.8L 2009-13
  • Porsche 970.1 Panamera 4S V8 4.8L 2009-13
  • Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
  • Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
  • Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
  • Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
  • Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
  • Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
  • Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
  • Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
  • Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
  • Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 Executive 2014-16
  • Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
  • Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20

 Available from Design911, EBC standard brake discs provide dependable stopping power, correct fitment, and long service life—perfect for Panamera owners seeking factory-correct braking performance without compromise.

What Do EBC Standard Front Brake Discs Do?

Front brake discs are a critical safety component, converting kinetic energy into heat during braking.

Core Functions:

  • Provide a stable friction surface for brake pads.
  • Deliver smooth, predictable stopping power.
  • Dissipate heat generated during braking.
  • Maintain braking balance and pedal feel.
  • Support safe and controlled deceleration.

EBC standard discs are engineered to replicate original braking characteristics for comfort and consistency.

Why Do Front Brake Discs Fail?

Brake discs naturally wear over time due to friction and heat cycles.

Common Causes of Failure:

  • Disc thickness falling below minimum specification.
  • Surface wear, scoring, or grooving.
  • Heat build-up leading to warping or vibration.
  • Corrosion caused by moisture and road salt.
  • Uneven pad wear or contaminated brake pads.

Ignoring worn discs can result in reduced braking efficiency and increased stopping distances.

When Should You Replace Front Brake Discs?

Replacing brake discs at the correct interval ensures safety and protects other braking components.

Replacement Is Recommended When:

  • Disc thickness reaches the manufacturer’s minimum limit.
  • Vibration or judder is felt under braking.
  • Visible cracking, scoring, or corrosion is present.
  • Brake pads are replaced after significant disc wear.
  • During scheduled brake servicing.

Replacing discs and pads together ensures optimal braking performance and longevity.

Quality & Engineering Highlights

  • EBC standard OEM-spec front brake discs
  • Precision machined for perfect fitment
  • Manufactured from high-quality cast iron
  • Designed for smooth, quiet braking
  • Suitable for daily driving and long-distance use
  • Direct replacement for factory front discs

These discs are engineered to meet the demands of the Panamera’s weight and performance.

Key Benefits

  • Restores factory braking performance
  • Smooth and quiet operation
  • Reliable heat dissipation
  • Long service life Ideal for everyday and motorway driving       



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

D1921S
97035140300
97035140400
97035140301
97035140401
298615301B
298615302B

The product you are viewing cross references to these numbers
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About EBC Standard Brake Disc

EBC Standard Brake Discs - Reliable Replacement Brake Discs for Everyday Road Use

EBC Standard Brake Discs are designed as direct replacement brake discs for everyday road driving, offering dependable stopping power, smooth braking response, and long service life. Manufactured to meet original design and performance standards, these discs provide consistent braking performance, excellent fitment, and reliable heat dissipation for daily use.

Available from Design911, EBC Standard Brake Discs are ideal for routine maintenance, brake servicing, and restoring braking performance on road-driven vehicles. They are engineered for quiet operation, predictable pedal feel, and durability under normal driving conditions.

What Do EBC Standard Brake Discs Do?

Brake discs work with brake pads and calipers to safely slow and stop the vehicle.

Core Functions:

  • Convert kinetic energy into controlled braking force.
  • Provide a stable friction surface for brake pads.
  • Dissipate heat generated during braking.
  • Maintain smooth, vibration-free braking.
  • Support consistent pedal feel and vehicle control.

EBC Standard Brake Discs are designed to perform reliably during everyday driving, from cold starts to repeated braking in traffic.

Why Do Standard Brake Discs Wear or Fail?

Brake discs are wear components and naturally degrade over time.

Common Causes of Wear or Failure Include:

  • Normal disc wear from repeated braking cycles.
  • Heat stress from frequent or heavy braking.
  • Surface corrosion caused by moisture and road salt.
  • Disc scoring or lip formation due to pad wear.
  • Brake judder or vibration from uneven wear or deposits.

As discs wear, braking smoothness, efficiency, and safety are reduced—making replacement essential.

Why Replace with EBC Standard Brake Discs?

Replacing worn discs with EBC Standard Brake Discs restores braking performance and reliability.

Key Benefits:

  • Manufactured to original performance and fitment standards.
  • Smooth, quiet braking with consistent response.
  • Reliable heat management for everyday road use.
  • Long service life with predictable wear characteristics.
  • Ideal for daily driving, commuting, and standard road use.

EBC Standard Brake Discs provide a cost-effective, dependable solution for maintaining safe and consistent braking performance.

Highlights

  • Direct replacement brake discs for road vehicles.
  • Smooth, vibration-free braking performance.
  • Designed for everyday driving conditions.
  • Reliable quality and long service life.
  • Ideal for routine brake servicing and maintenance.       

Porsche Brake Disc Upgrades: Venting, Drilling, and Grooving Explained

Today we’re talking brake discs: the unsung heroes of your Porsche’s stopping power. What do they do? How can you tell when they need replacing? And what are the upgrade options for enhanced performance? It’s all here. We’ll explore the evolution of brake disc designs, from solid to vented, drilled, and grooved, explaining how each type improves performance. Plus, we’ll break down the materials: durable cast iron, high-carbon steel, and Porsche’s high-performance options like carbon ceramic and surface-coated discs. Whether you’re looking for better braking on the track or a cost-effective daily driving solution, we’ve got you covered.
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