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- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Restore safe and secure wheel installation with this OE Match Long Brake Wheel Mounting Bolt, 40mm, manufactured as a direct replacement. Produced to OE-style specifications, this precision-engineered 40mm wheel bolt provides the correct thread engagement and clamping force required to securely fasten the wheel to the hub. It is designed for Porsche models requiring a longer mounting bolt, including applications with specific brake assemblies, factory-approved wheel spacers, or wheels that require increased bolt length.
Fits:
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
As a critical fastening component, the wheel mounting bolt ensures the wheel and brake assembly remain securely attached to the hub under all driving conditions. Over time, wheel bolts can become corroded, suffer thread damage, stretch through repeated incorrect tightening, or develop rounded heads from improper tool use. This OE Match replacement restores factory-style fitment, safety, and reliability, making it ideal for routine maintenance, repairs, and Porsche restoration projects.
What This Product Does:
- Secures the wheel safely to the hub assembly.
- Provides the correct 40mm thread engagement where specified.
- Delivers the correct clamping force between the wheel and hub.
- Supports vehicles requiring longer wheel mounting bolts.
- Replaces worn, damaged, or corroded original fasteners.
- Ensures safe wheel retention under all driving conditions.
- Provides an OE-style fit and dependable performance.
Symptoms Of Wear Or Failure:
- Corroded or heavily rusted wheel bolts.
- Damaged or stripped threads.
- Rounded or worn bolt heads.
- Difficulty achieving the correct tightening torque.
- Stretched or overtightened wheel bolts.
- Incorrect bolt length fitted during previous repairs.
- Signs of damage after repeated wheel removal.
- Age-related deterioration of the original fasteners.
Why Replacement Matters:
- The wheel mounting bolt is a critical safety component that provides the clamping force required to securely fasten the wheel to the hub. A damaged, corroded, stretched, or incorrectly sized bolt can compromise wheel retention, resulting in uneven clamping, vibration, damaged threads, or, in severe cases, wheel fastening failure.
- Replacing worn or incorrect wheel mounting bolts restores safe wheel attachment and ensures the correct factory-style fit and clamping performance. Manufactured as a direct replacement for the original component and produced to OE-style specifications, this OE Match 40mm long brake wheel mounting bolt provides reliable strength, precise fitment, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
35633190300
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 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 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 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
Brake Disc Mounting Screw - M6 x 12
Sold each - 2 required per disc
Maintain secure and accurate brake disc installation with
this OE Match Brake Disc Mounting Screw 90026904701. Used across a wide range
of Porsche models, this small but essential fastening component secures the
brake disc (rotor) to the wheel hub during assembly and servicing.
Fits:
- Porsche 911
- Porsche 924S
- Porsche 944
- Porsche 964
- Porsche 993
- Porsche 996
- Porsche 997
- Porsche Boxster 986
- Porsche Boxster 987
- Porsche Cayman
Although the wheel bolts ultimately clamp the brake disc firmly against the hub, the brake disc mounting screw plays an important role in keeping the disc correctly aligned during installation. This ensures accurate positioning of the brake rotor, simplifies wheel and brake servicing and helps prevent movement while the wheel is removed.
Due to repeated exposure to heat, corrosion, moisture and brake servicing, these screws can become seized, damaged or stripped over time. Replacing the mounting screw whenever the brake discs are renewed helps ensure trouble-free future maintenance and correct brake assembly.
What Does a Brake Disc Mounting Screw Do?
The brake disc mounting screw secures the brake disc to the wheel hub before the wheel is fitted.
Its primary functions include:
- Locating the brake disc correctly on the hub
- Maintaining disc alignment during assembly
- Preventing disc movement when the wheel is removed
- Simplifying brake servicing
- Supporting accurate brake disc installation
- Assisting wheel and hub assembly procedures
- Helping maintain factory brake fitment standards
Although small, this component plays an important role in brake system maintenance and assembly.
Why Do Brake Disc Mounting Screws Fail?
Brake mounting screws operate in a harsh environment and are frequently removed during brake servicing.
Common causes of failure include:
- Corrosion and rust
- Heat cycling from braking systems
- Rounded or stripped screw heads
- Seized threads
- Improper removal techniques
- Galvanic corrosion between metals
- Age-related deterioration
- Repeated brake servicing
It is common for original screws to become difficult to remove after years of service.
When Should Brake Disc Mounting Screws Be Replaced?
Brake disc mounting screws should always be inspected during brake maintenance.
Replacement is recommended when:
- Installing new brake discs
- Screw heads become damaged
- Threads show signs of wear
- Corrosion is present
- Screws become seized during removal
- Carrying out brake refurbishment work
- Restoring older Porsche models
- Performing preventative maintenance
Many Porsche specialists routinely replace retaining screws during brake disc replacement to avoid future servicing issues.
Why Replacement Matters
Replacing worn or corroded brake disc mounting screws helps ensure correct brake assembly and easier future maintenance.
Benefits include:
- Secure brake disc location
- Easier brake servicing
- Reduced risk of seized hardware
- Improved assembly accuracy
- Better long-term reliability
- Prevention of damaged hub threads
- Restoration of factory fitment standards
- Professional-quality brake maintenance
A new retaining screw is an inexpensive but worthwhile addition to any brake overhaul.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90026904701
The product you are viewing cross references to these numbers
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Refer: 99335142510, 99335142610, 3604209301, 3604209302
OE Match front brake caliper repair kit for Porsche 964 and 993 models fitted with Big Red front calipers. This kit is used to service and restore the front caliper sealing components, helping maintain reliable braking performance and correct hydraulic operation.
Fits:
Porsche 964 (911) TURBO 3.6L 1991 - 1993
Porsche 993 (911) RS 1994 - 1997
Porsche 993 (911) TURBO 1994 - 1996
The front brake caliper repair kit helps restore proper caliper function by renewing components that can wear, harden, split, or leak over time. Correct caliper sealing is essential for maintaining brake fluid pressure, preventing leaks, and ensuring consistent braking response.
Functions
• Repairs and services the front Big Red brake caliper
• Supports correct hydraulic brake pressure
• Helps prevent brake fluid leaks from the caliper
• Restores reliable caliper sealing performance
• Suitable for caliper rebuilds and brake system restoration
• Replaces worn, hardened, split, leaking, or damaged sealing components
• OE Match replacement kit for Porsche 964 and 993 brake caliper service.
Why Replace This Kit?
Brake caliper seals and related service parts are exposed to heat, brake fluid, pressure, road dirt, moisture, and repeated braking cycles. Over time, these components can harden, crack, swell, split, or lose sealing performance. A worn caliper may cause brake fluid leaks, sticking pistons, uneven braking, soft pedal feel, brake drag, or reduced braking efficiency. Rebuilding the caliper with a repair kit helps restore safe and dependable brake operation.
When to Replace This Kit
• The front caliper is leaking brake fluid
• The brake caliper is being rebuilt or refurbished
• Caliper pistons are sticking or not retracting correctly
• Brake drag, uneven braking, or poor pedal feel is present
• Seals are cracked, swollen, hardened, or damaged
• Big Red calipers are being restored or powder coated
• Preventative brake overhaul is being carried out.
Where it fits on the car
This repair kit fits the front brake caliper assembly on Porsche 964 and 993 models fitted with Big Red front calipers. It is used during caliper service or rebuild work.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1661950610
The product you are viewing cross references to these numbers