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Porsche > 911 & 912 (1965-1989) > 911 1984-1986 3.2L > Brakes >

SPORTS Brake Disc

SPORTS Brake Disc

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DISPLAYING 1 to 7 (of 7 products)
Brake disc rotor SPORT COAT Z, Front. Porsche 911 1984-89 3.2L - 460.1504.52, 91135104122, 91135104123, 92039600
2
Brake disc rotor SPORT COAT Z, Front. Porsche 911 1984-89 3.2L
91135104123XZIM
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: 24 mm
Bolt Hole Circle Ø: 126 mm
Centering Diameter: 107 mm
Hole Pitch / Number: 5/5

zimmermann

front
Porsche 911 3.2L 1984-89 - 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Related, superseded, cross reference or alternative numbers for comparison.

91135104123XZIM
460.1504.52
91135104122
91135104123
92039600

The product you are viewing cross references to these numbers
Brake disc rotor, Rear. Porsche 911 1984-89 3.2L Sport Coat Z - 460.1505.52, 91135204109, 91135204108, 92039700
2
Brake disc rotor, Rear. Porsche 911 1984-89 3.2L Sport Coat Z
91135204109XZIM
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: 290 mm
Brake Disc Thickness: 24 mm
Bolt Hole Circle Ø: 130 mm
Centering Diameter: 90 mm
Hole Pitch / Number: 10/5

zimmermann

rear
Porsche 911 3.2L 1984-89 - REAR

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.

91135204109XZIM
460.1505.52
91135204109
91135204108
92039700

The product you are viewing cross references to these numbers
Brake disc rotor, Rear. Porsche 911 1984-89 3.2L Sport drilled (Pair) - 91135204108, 275802C, 91135204109 - 275802C
4
Brake disc rotor, Rear. Porsche 911 1984-89 3.2L Sport drilled (Pair)
91135204109XSEB
Product Information
Product Information
High grade DRILLED brake discs. PAIR
Directionally-drilled for additional cooling (Left and Right)

rear
Porsche 911 1984-89 3.2L REAR
Diameter Ø 290,0 mm
Thickness 24,0 mm
Min. Thickness 22,0 mm
Total height 83,1 mm

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Related, superseded, cross reference or alternative numbers for comparison.

91135204109XSEB
91135204108
275802C
91135204109

The product you are viewing cross references to these numbers
Brake disc rotor, Rear. Porsche 911 1984-89 3.2L Sport slotted (Pair) - 91135204108, 285802C, 91135204109
4
Brake disc rotor, Rear. Porsche 911 1984-89 3.2L Sport slotted (Pair)
91135204109SL
Product Information
Product Information
High grade SLOTTED brake discs. PAIR
Directionally-slotted for additional cooling (Left and Right)

sebro

rear
Porsche 911 1984-89 3.2L REAR
Diameter Ø 290,0 mm
Thickness 24,0 mm
Min. Thickness 22,0 mm
Total height 83,1 mm

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

91135204109SL
91135204108
285802C
91135204109

The product you are viewing cross references to these numbers
Rear brake adapters for 996 C2 calipers. Porsche 911 74-89 - 9P-911C2R
1
Rear brake adapters for 996 C2 calipers. Porsche 911 74-89
3604109112
Product Information
Product Information
This adapter kit is for upgrading Porsche 911 '74-89 rear brakes to 996 C2 rear calipers and rotors.
Set of 2 brackets 


rear
Porsche 911 1974-89 (with 17" wheels or bigger)

Please Note: your car must be fitted with 17" wheels or bigger for the clearance reasons

Reference code for the 299 x 24 mm C2 brake rotors: 996.352.401.04



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

3604109112
9P-911C2R

The product you are viewing cross references to these numbers
Sport drilled brake discs (Pair) Front. Porsche 911 1984-89 3.2ltr front - 285197C, 91135104123, 91135104122, 91135104123X - 275197C
4
Sport drilled brake discs (Pair) Front. Porsche 911 1984-89 3.2ltr front
91135104123XSEB
Product Information
Product Information
High grade DRILLED brake discs. PAIR
Directionally-drilled for additional cooling (Left and Right)

front
Porsche 911 1984-89 3.2L FRONT
Diameter Ø 285.5 mm
Thickness 24,0 mm
Min. Thickness 23,0 mm
Total height 35 mm

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

91135104123XSEB
285197C
91135104123
91135104122
91135104123X

The product you are viewing cross references to these numbers
Sport slotted brake discs (Pair) Front. Porsche 911 1984-89 3.2ltr front - 91135104123SL
4
Sport slotted brake discs (Pair) Front. Porsche 911 1984-89 3.2ltr front
91135104123SL
Product Information
Product Information
High grade SLOTTED brake discs. PAIR
Directionally-slotted for additional cooling (Left and Right)

sebro

front
Porsche 911 1984-89 3.2L REAR
Diameter Ø 285.5 mm
Thickness 24,0 mm
Min. Thickness 23,0 mm
Total height 35 mm

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

91135104123SL
91135104123SL

The product you are viewing cross references to these numbers
DISPLAYING 1 to 7 (of 7 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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