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Porsche // Taycan (9J1) MK1 2020-2024 // 9J1.1 Taycan Turbo S Sport Turismo 2020-24
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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 356C 1963-65
Keep your classic Porsche braking at its best with this Genuine Porsche Rear Brake Expander Spring. This small but essential component sits inside the rear disc brake assembly on early Porsche 911, 912 and some 914 models equipped with solid (non-ventilated) rear discs.
Fits:
Porsche 912 1969
Porsche 911 T 1969
Diagram ref no 17
The expander spring, also known as a tension or retaining spring, is a precision-engineered piece of brake hardware designed to maintain correct pad alignment and eliminate unwanted movement in the caliper assembly. Although minor in appearance, it plays a major role in ensuring the brake pads sit securely and function smoothly.
This spring helps to:
• Keep the brake pads correctly positioned inside the rear caliper
• Maintain proper tension in the brake assembly
• Reduce vibration and brake noise (rattle/chatter)
• Support even brake pad wear
• Promote consistent braking performance.
If this spring weakens, wears out, or breaks, the pads can shift or rattle, leading to noise, uneven wear, and reduced braking precision.
Over decades of use, heat cycles, corrosion, and general wear cause these springs to lose tension. Common signs that it’s time to replace include:
• Rattling or clicking noises from the rear brakes
• Uneven brake pad wear
• Pads that don’t retract smoothly
• Caliper movement or vibration
• During a brake rebuild or classic restoration
Because this is a classic-model component, many cars still on the road are using original hardware that is long overdue for renewal.
Replace the expander spring:
• Whenever fitting new rear pads
• During any brake system overhaul If you notice noise, pad movement, or irregular wear
• As part of routine maintenance on classic Porsche models, especially those with solid rear brake discs
• Whenever the caliper has been disassembled If the spring shows any signs of corrosion, fatigue, or deformation
For best results, always replace springs in pairs per caliper, as specified by Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135191617
The product you are viewing cross references to these numbers
For brake systems and is highly temperature-resistant (up to 1,000°C).
Available in 75ml tube and 5ml sachet
The advantages of Cera Tec:
• Non-conductive and contains no solids
• Suitable for ABS
• Facilitates brake installation
• Reduces brake squealing
• Protects against scoring and corrosion
• Free of copper and acids
• Pressure-resistant / high viscosity
Cera Tec is also suitable for lubricating:• Disc- and drum-brake systems
• Compressors
• Centralised lubrication systems
• Axle bearings
• Chains
• Seat rails
• Sunroof tracks
• Battery terminals
Application:
Apply a thin layer of Cera Tec on the marked sections
Find out about Textar product verification here
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
- Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo GT V8 4.0L (640Hp) 2021-23
- Porsche 971.2 Panamera 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
- Porsche 9J1.1 Taycan 2020-24
- Porsche 9J1.1 Taycan Sport Turismo 2020-24
- Porsche 9J1.1 Taycan 4 Cross Turismo 2020-24
- Porsche 9J1.1 Taycan 4S 2020-24
- Porsche 9J1.1 Taycan 4S Cross Turismo 2020-24
- Porsche 9J1.1 Taycan 4S Sport Turismo 2020-24
- Porsche 9J1.1 Taycan GTS 2020-24
- Porsche 9J1.1 Taycan GTS Sport Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo 2020-24
- Porsche 9J1.1 Taycan Turbo Cross Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo Sport Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo S 2020-24
- Porsche 9J1.1 Taycan Turbo S Cross Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo S Sport Turismo 2020-24
Fits:
Porsche 971.2 Panamera - 2021 onwards
Porsche Taycan - 2020 onwards
Porsche 9YA Cayenne - 2018 onwards
For cars with the following Option Codes
971.2 Panamera
1LQ - Front disc brake PCCB
1LX - Front disc brake, PCCB, high-gloss black
Taycan
19" Yellow/Black
19" White/Black
1LQ - Front disc brake PCCB
1LX - Front disc brakes, PCCB, high-gloss black (EXC)
1ZP - Front disc brakes, PSCB, high-gloss black (EXC).2
9YA Cayenne
20"
1ZI - Front disc brake, Brake calliper, white (PSCB), disc diameter 20"
1ZU - Front disc brake ,disc diameter 20 inches, brake calliper painted Green (PSCB)
1ZP - Front disc brakes, PSCB, high-gloss black (EXC)
21"
1ZV - Front disc brake, disc diameter 21-inches,brake calliper painted Yellow (PCCB)
1ZW - Front disc brake, disc diameter 21-inches,brake calliper painted Green (PCCB)
1LX - Front disc brakes, PCCB, high-gloss black (EXC)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
971698231A
The product you are viewing cross references to these numbers