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- Accessories
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Hexagon head bolt Genuine Porsche part WHT008142
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
2 x Bolts required per Caliper. Fits: FRONT Calipers.
Fits:
Porsche 981 Cayman GT4 2016
Porsche 991.2 Carrera 2017>> I450 Cars with Ceramic brakes (PCCB)
Porsche 991 Turbo / GT2 2014>> I450 Cars with Ceramic brakes (PCCB)
Porsche 997 Turbo / GT2 2012>> I450 Cars with Ceramic brakes (PCCB)
Porsche 997 GT3 2010-11
Porsche 991 GT3 / GT3 RS 2014-2017
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
WHT008186
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche Cayman GT4 3.8L 2015-16
- Porsche 95B.1 Macan Turbo 3.6L V6 400Bhp 2014-18
One kit per axle

Fits:
Porsche 997 turbo - 2007 to 2012 with PCCB
Porsche 997 GT3 Cup
Porsche 997.1 GT3 / GT2 - 2007 to 2008 with PCCB
Porsche 997.2 GT3 / GT2 - 2010 to 2012 WITHOUT PCCB
Porsche 991 turbo / turbo S - 2012 to 2018 with PCCB
Porsche 991.2 Carrera 2 / 4 / 4S - 2016 to 2018 with PCCB
Porsche 991 GT3 / GT3RS - 2012 to 2018 WITHOUT PCCB
Porsche 991 GT3 /GT3RS / GT2RS 2012 to 2018 with PCCB
Porsche 992 GT3 - 2018 Onwards with or without PCCB
Porsche 981 Cayman GT4 - 2015 to 2016 with or without PCCB
Porsche 718 Cayman GT4 RS with or without PCCB
Porsche 718 Cayman GT4,
Porsche 718 Boxster Spyder with or without PCCB
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-02
The product you are viewing cross references to these numbers
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
2 x Bolts required per Caliper. Fits: FRONT Calipers.
Designed to meet or exceed original equipment specifications, ensuring a precise fit and secure installation for your Porsche’s braking system. Manufactured from high-strength steel and engineered for durability, this bolt provides the correct clamping force to maintain caliper alignment and brake performance under demanding conditions. Ideal for brake service or caliper replacement, it restores factory-level safety and reliability.
Fits:
Porsche 981 Cayman GT4 2016
Porsche 991.2 Carrera 2017>> I450 Cars with Ceramic brakes (PCCB)
Porsche 991 Turbo / GT2 2014>> I450 Cars with Ceramic brakes (PCCB)
Porsche 997 Turbo / GT2 2012>> I450 Cars with Ceramic brakes (PCCB)
Porsche 997 GT3 2010-11
Porsche 991 GT3 / GT3 RS 2014-2017
Porsche 992.1 Carrera 2017>> I450 Cars with Ceramic brakes (PCCB)
Porsche 992 Turbo / GT2 2014>> I450 Cars with Ceramic brakes (PCCB)
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
WHT008186
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
- Porsche 992.1 Turbo 3.8L 2020-24
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche Cayman GT4 3.8L 2015-16
- Porsche 95B.1 Macan Turbo 3.6L V6 400Bhp 2014-18
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed