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Porsche > 924 (1977-1988) > Brakes >

SPORTS Brake Disc

SPORTS Brake Disc

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DISPLAYING 1 to 3 (of 3 products)
Brake disc rotor Front. Porsche 911 / 930 / 924 / 944 (OE Part No 477405083A / 91135104120) Slotted pair - 285186C, 477405083D, 91135104120 - 285186C
5
Brake disc rotor Front. Porsche 911 / 930 / 924 / 944 (OE Part No 477405083A / 91135104120) Slotted pair
477405083DSL
Product Information
Product Information
Slotted brake discs, Front - PAIR

front
Porsche 911 L / S / T 1965-69 FRONT (Cars with vented disc option)
Porsche 911 1969-83 FRONT
Porsche 930 turbo 3.0ltr 1975-77 FRONT
Porsche 924 1976-85 FRONT 5 stud pattern
Porsche 924 turbo FRONT
Porsche 944 2.5ltr 1982-85 FRONT *Cars without ABS

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Related, superseded, cross reference or alternative numbers for comparison.

477405083DSL
285186C
477405083D
91135104120

The product you are viewing cross references to these numbers
Brake disc rotor Front. Porsche 911 / 930 / 924 / 944 (OE Part No 477405083A / 91135104120) Sport Coat Z - 460.1017.52, 477405083A, 477405083D, 90135104116, 90135104118, 91135104120
2
Brake disc rotor Front. Porsche 911 / 930 / 924 / 944 (OE Part No 477405083A / 91135104120) Sport Coat Z
477405083DXZIM
Product Information
Product Information
Zimmermann SPORT brake disc COAT Z, CROSS DRILLED.
Cross drilled brake discs upgrade for better cooling & braking.

Internally Vented, Perforated, Coated
Outer diameter: 282 mm
Brake Disc Thickness: 20 mm
Bolt Hole Circle Ø: 126 mm
Centering Diameter: 107 mm
Weight: 5.4 kg
Hole Pitch / Number: 5/5

zimmermann

front
Porsche 911 L / S / T 1965-69 FRONT (Cars with vented disc option)
Porsche 911 1969-83 - FRONT
Porsche 924 1976-85 - FRONT 5 stud pattern
Porsche 924 Turbo - FRONT
Porsche 944 2.5L 1982-85 - FRONT *Cars without ABS
Porsche 930 Turbo 3.0L 1975-77 - FRONT

Please note: Those discs are not sided. They fit left or right side of the car. Brake disc rotors are priced each.


The Zimmermann Sport Brake Disc was developed as a result of experience of brake discs in series-production vehicles in connection with racing. The brake system is optimised by combining high-quality cast materials with a perforated braking surface.

Your advantages:

• Better wet braking performance by permanent expulsion of brake dust and water
• Sporty look
• Because of the anti-corrosion protection Coat Z better finish - especially of the hub and the outer diameter
• Noticeable improvement in the braking power of your car
• Prevention of brake fade
• Countersinking of holes doubles up as wear indicator
• 1:1 exchange of original disc possible
• No additional adaptions necessary
• Not subject to registration: general ABE certification supplied with disc

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

477405083DXZIM
460.1017.52
477405083A
477405083D
90135104116
90135104118
91135104120

The product you are viewing cross references to these numbers
Brake disc rotor Rear. Porsche 944 / 924S / 924Turbo / 924GT Cars without ABS - 94435204102, 94435204105, 460.1511.52, 92835204102
2
Brake disc rotor Rear. Porsche 944 / 924S / 924Turbo / 924GT Cars without ABS
94435204105XZIM
Product Information
Product Information

Brake disc rotor Rear. Porsche 944 / 924S / 924Turbo / 924GT Cars without ABS

zimmermann SPORT brake disc COAT Z, CROSS DRILLED.
Cross drilled brake discs upgrade for better cooling & braking.

rear
Porsche 944 2.5L 1982-85 ** Cars without ABS - REAR
Porsche 944 2.5L 1986-87 ** Cars without ABS - REAR
Porsche 924 S / Turbo / GT ** Cars without ABS - REAR
Porsche 928 >>1985 - REAR

Cross drilled brake discs upgrade for better cooling & braking.

Internally Vented, Perforated, Coated
Outer diameter: 289 mm
Brake Disc Thickness: 20 mm
Bolt Hole Circle Ø: 130 mm
Centering Diameter: 103 mm
Weight: 6.7 kg
Hole Pitch / Number: 10/5


Please note: Those discs are not sided. They fit left or right side of the car. Brake disc rotors are priced each

The Zimmermann Sport Brake Disc was developed as a result of experience of brake discs in series-production vehicles in connection with racing. The brake system is optimised by combining high-quality cast materials with a perforated braking surface.

Your advantages:

• Better wet braking performance by permanent expulsion of brake dust and water
• Sporty look
• Because of the anti-corrosion protection Coat Z better finish - especially of the hub and the outer diameter
• Noticeable improvement in the braking power of your car
• Prevention of brake fade
• Countersinking of holes doubles up as wear indicator
• 1:1 exchange of original disc possible
• No additional adaptions necessary
• Not subject to registration: general ABE certification supplied with disc



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

94435204105XZIM
94435204102
94435204105
460.1511.52
92835204102

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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About SPORTS Brake Disc

Experience race-inspired stopping power with Porsche sports brake discs from Design911. Designed for performance driving, these upgraded brake rotors provide greater heat dissipation, improved bite, and enhanced fade resistance, ensuring confidence under even the most demanding conditions.

What They Are & What They Do
Sports brake discs (or rotors) are precision-engineered components that work with brake pads to generate friction and stop the car effectively. Unlike standard discs, sports variants are often drilled, grooved, or slotted, helping to vent heat and gases, improve braking response, and maintain consistent performance during high-speed or repeated stops.

Why They Fail
Over time, brake discs wear down from heat cycles, friction, and corrosion. Common signs of failure include scoring, warping, cracking, or vibration during braking. Track use or aggressive driving can accelerate wear, while low-quality discs may develop hotspots and fade under stress.

Why They Should Be Replaced
Replacing worn or damaged brake discs restores optimal braking efficiency, pedal feel, and vehicle control. New sports discs not only improve performance and safety but also extend pad life and reduce fade, ensuring Porsche’s legendary stopping precision. Design911 offers genuine Porsche discs for factory performance and aftermarket upgrades for enhanced durability and responsiveness.

Whether you’re restoring a classic 911 or tuning a Cayman or Taycan for track use, our range of sports discs combines precision, reliability, and performance to keep your Porsche braking like new.

Aftermarket Performance Brake Discs
High-quality aftermarket discs featuring slotted or drilled designs for superior airflow, reduced fade, and consistent friction performance.

Front Sports Brake Discs
Heavy-duty front rotors built to handle intense braking loads, offering maximum stopping power and stability under pressure.

Rear Sports Brake Discs
Rear discs designed for balanced braking and improved heat management, ensuring control and composure under repeated deceleration.

Drilled & Grooved Brake Rotors
Advanced rotors engineered to dissipate heat, clean brake pads, and deliver responsive braking for track and fast-road applications.

Motorsport & Track Brake Discs
Race-grade rotors made from high-carbon or composite materials, offering unmatched durability and thermal control for competition use.

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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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