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Caliper Bolts / Disc Screws
By OE Match
- Porsche Boxster 981 2.7L 2012-16
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche Cayman 2.7L 981 2013-16
This bolt secures the brake caliper bracket to the hub carrier, ensuring the caliper remains rigid, aligned and tensioned under braking loads. Manufactured to OE tolerance, the bolt features correct thread pitch (M12 × 1.5), length (77 mm), socket head style. This bolt is designed for use with front and rear brake calipers on selected Porsche 996, 997 and 981 models.
2x bolts are required per caliper.
Fits:
Porsche 996 C4S 2002 - 2005 (FRONT & REAR calipers)
Porsche 996 TURBO 2000 - 2005 (FRONT & REAR calipers)
Porsche 997 MKI C2S / C4S 3.8L 2005 - 2008 (FRONT & REAR calipers)
Porsche 997 MKII C2S / C4S 3.8L 2009 - 2012 (FRONT & REAR calipers)
Porsche 981 Boxster 2.7L 2012 - 2016 (FRONT calipers)
Porsche 981C Cayman 2.7L 2013 - 2016 (FRONT calipers)
Diagram Ref No 8
• Position on Vehicle: Brake caliper mounting bolt, caliper bracket to hub carrier, various caliper positions (front & rear) depending on model.
• Part Specification: Thread – M12 × 1.5; Length – 77 mm; Socket head style
• Function: Secures the brake caliper to the hub carrier, provides correct clamp load, ensures caliper remains correctly aligned and rigid under braking forces, prevents movement or flex that can affect braking performance, rotor alignment and pad wear.
Though often overlooked, the caliper mounting bolts perform a critical role in your braking system. Worn, stretched or reused bolts can lose clamping load, causing caliper movement, noise, uneven pad wear, rotor alignment issues or brake performance degradation. Replacing with a correct OE-Match bolt ensures proper retention, alignment and durability.
When and why to replace:
• The caliper has been removed or serviced (pad change, rotor replacement) and original bolts have been re-used multiple times.
• Bolts show signs of thread damage, corrosion, visible stretch (elongation) or wear on the socket head.
• You’re installing new calipers, rotors or upgrading to performance braking and want to renew all fasteners.
• You’re performing brake pad/rotor service and want to ensure all hardware is new for correct torque, clamp load and safe performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906705009
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 981 2.7L 2012-16
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche Cayman 2.7L 981 2013-16
This bolt secures the brake caliper bracket to the hub carrier, ensuring the caliper remains rigid, aligned and tensioned under braking loads. Manufactured to OE tolerance, the bolt features correct thread pitch (M12 × 1.5), length (77 mm), socket head style. This bolt is designed for use with front and rear brake calipers on selected Porsche 996, 997 and 981 models.
Sold Each, 2x bolts required per caliper.
Fits:
Porsche 996 C4S 2002 - 2005 (FRONT & REAR calipers)
Porsche 996 TURBO 2000 - 2005 (FRONT & REAR calipers)
Porsche 997 MKI C2S / C4S 3.8L 2005 - 2008 (FRONT & REAR calipers)
Porsche 997 MKII C2S / C4S 3.8L 2009 - 2012 (FRONT & REAR calipers)
Porsche 981 Boxster 2.7L 2012 - 2016 (FRONT calipers)
Porsche 981C Cayman 2.7L 2013 - 2016 (FRONT calipers)
Diagram Ref No 8
• Position on Vehicle: Brake caliper mounting bolt, caliper bracket to hub carrier, various caliper positions (front & rear) depending on model.
• Part Specification: Thread – M12 × 1.5; Length – 77 mm; Socket head style
• Function: Secures the brake caliper to the hub carrier, provides correct clamp load, ensures caliper remains correctly aligned and rigid under braking forces, prevents movement or flex that can affect braking performance, rotor alignment and pad wear.
Though often overlooked, the caliper mounting bolts perform a critical role in your braking system. Worn, stretched or reused bolts can lose clamping load, causing caliper movement, noise, uneven pad wear, rotor alignment issues or brake performance degradation. Replacing with a correct OE-Match bolt ensures proper retention, alignment and durability.
When and why to replace:
• The caliper has been removed or serviced (pad change, rotor replacement) and original bolts have been re-used multiple times.
• Bolts show signs of thread damage, corrosion, visible stretch (elongation) or wear on the socket head.
• You’re installing new calipers, rotors or upgrading to performance braking and want to renew all fasteners.
• You’re performing brake pad/rotor service and want to ensure all hardware is new for correct torque, clamp load and safe performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906705009
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
OE Match brake caliper mounting bolt for Porsche 993, 996, 997.1, Boxster, and Cayman models. These replacement caliper fixing bolt help secure the brake caliper to the carrier or hub assembly during brake system service.
2 x Bolts required per caliper. Fits FRONT & REAR calipers
Fits:
Porsche 993 C2 / C4 1995 - 1998 - Front only (Not widebody)
Porsche 996 C2 / C4 1998 - 2005 - (Not widebody)
Porsche 997 C2 / C4 3.6L 1998 - 2005
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016 - (REAR only)
Porsche 718 (982) Boxster 2017 >> - (REAR only)
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016 - (REAR only)
Porsche 718 (982) Cayman 2017 >> - (REAR only)
Diagram ref no 8
This product supersedes Porsche's old part numbers: 90006729209, 99906704109, 99906704101
Brake caliper mounting bolts hold the caliper firmly in position so the brake pads can clamp the disc correctly. Secure caliper mounting is essential for safe braking performance, pedal feel, pad contact, and reliable brake operation.
Functions
• Replaces brake caliper mounting bolts
• Secures the brake caliper assembly
• Helps maintain correct caliper alignment
• Supports safe brake pad and disc contact
• Used during brake caliper, brake pad, or brake disc service
• Replaces corroded, rounded, stretched, damaged, or missing original bolts
• OE Match replacement fasteners for Porsche brake system repair.
Why Replace This Part?
Brake caliper mounting bolts are exposed to high braking loads, heat, road dirt, corrosion, and repeated service work. Worn, damaged, corroded, or stretched bolts may not provide correct clamping force and can compromise caliper security. Replacement is recommended when the bolts are removed during brake service or when their condition is uncertain.
When to Replace This Part
• Brake calipers are being removed or replaced
• Brake pads or brake discs are being serviced
• The original bolts are corroded, rounded, stretched, damaged, or missing
• Caliper mounting threads or fixing condition are being checked
• Brake vibration, movement, or noise is being investigated
• Preventative replacement is required during brake overhaul
• The vehicle is undergoing Porsche brake system restoration.
Where it fits on the car
These bolts fit at the brake caliper mounting points on Porsche 993, 996, 997.1, Boxster, and Cayman models. Exact position can vary depending on model, axle, caliper type, and brake package.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907340201
The product you are viewing cross references to these numbers
OEMatch Caliper Bolts / Disc Screws — Stopping Power, Consistent Control
OEMatch supplies a selection of caliper bolts and disc screws for Porsche models. These fasteners secure calipers and discs to hubs and mounting brackets, preserving alignment and correct torque under heat and vibration. Regular inspection and renewal during brake service helps prevent corrosion-related seizure and maintains safe braking operation.
Understanding OEMatch Caliper Bolts / Disc ScrewsOEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original caliper bolts and disc screws. OE (Original Equipment) refers to parts matching original specifications for the caliper bolts and disc screws and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM caliper bolts and disc screws engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Caliper bolts hold the caliper to its mounting bracket while disc screws locate the rotor to the hub; correct thread condition, specification and torque are essential to avoid movement, noise or uneven wear.
Benefits Include- Restores secure mounting and correct torque retention for reliable braking operation.
- Reduces the risk of seized or fractured fasteners during service and heating cycles.
- Improves resistance to corrosion and thread degradation in road and salt exposure.
- Corrosion from moisture, road salt and environmental exposure can seize threads and heads.
- Repeated tightening, incorrect torque or thread damage causes stretch and loss of clamping force.
- Heat cycling during intense braking can induce material fatigue or loosening if specification is wrong.
Replacing worn or corroded fasteners during brake servicing restores secure mounting, prevents vibration and uneven wear, and reduces the chance of component movement under load. Specifying the correct thread form and torque values is important for safety-critical braking joints; using purpose-selected replacements helps maintain system integrity on Porsche models.
Advantages- Selected for correct fit and thread form to match Porsche mounting points.
- Materials and finishes chosen to resist corrosion and heat exposure common to braking systems.
- Supplies suitable for restoration, routine maintenance or where original fasteners show wear.
- High-tensile steel caliper bolts with corrosion-resistant finish.
- Stainless steel disc screws for rotor location and longevity.
- Threadlocker-treated fasteners for high-heat or high-vibration applications.
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified. Recheck fasteners after initial mileage.