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This groove nut is used to secure the front lower wishbone (A-arm) ball joint on classic Porsche suspension systems. Manufactured to the exact dimensions and thread specifications of the original Porsche part, it provides reliable clamping strength and precise seating of the ball joint within the control arm.
SET OF 2, each vehicle requires two for a complete front axle set.
Fits:
Porsche 911 1969 - 1989
Porsche 914 1972 - 1976
Diagram ref no 17
This groove nut locks the ball joint securely into the front wishbone, maintaining correct alignment and preventing movement under cornering loads and braking forces. Its machined groove design allows for proper engagement with a locking ring or pin, ensuring long-term stability and safety.
With age, the original groove nut may corrode, lose thread integrity, or deform during removal. Using a worn or non-spec nut can lead to incorrect torque, potential loosening, or suspension play.
Replace when:
• Replacing the front ball joints or wishbone assemblies
• The threads are damaged, corroded, or rounded
• Performing a front suspension rebuild or alignment correction
Installing a fresh groove nut ensures proper torque retention, precise alignment, and dependable suspension performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134142501
The product you are viewing cross references to these numbers
- 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 914 (1970-1976)
Brake Disc Ø: 380mm
Brake Disc Thickness: 34 mm,
Brake Disc Type: internally vented, two-part brake disc, Drilled-Dimpled

Porsche 911 (997) GT3 MKII 2010> (M449 steel disc) FRONT
SHW PERFORMANCE, one of the world's leading brake disc manufacturers supplying directly to OEM, with product featured as standard equipment on many of today's new performance vehicles.
THE ONLY TRUE REPLACEMENT.
NOTHING LESS THAN A TRUE FACTORY EQUIVALENT
SHW PERFORMANCE produces both one and two piece, ventilated disc brake rotors to cover a wide range of vehicle applications.The vehicle application automatically dictates which style, composition and type of disc brake rotor is available, as SHW only offer a genuine direct replacement for the factory supplied disc.For lesser performance orientated vehicles, a ventilated monoblock disc brake rotor produced from cast iron will more than suffice. For vehicles placing greater demand on the needed stopping power, a lightweight, composite, fully floating two-piece design is often preferred (the style of which is referred commonly as a peg or pin drive system).
PERFORMANCE UNDER PRESSURE.
CONSISTENT RELIABILITY AND PERFORMANCE UNDER THE MOST DEMANDING OF CONDITIONS
Quality is a key ingredient from which to guarantee long term repeated reliability. SHW products are built to carry the high expectations required by exacting OEM standards and exceed them where possible.
PATENTED DESIGN PIN-DRIVE SYSTEM.
FROM WEIGHT REDUCTION TO IMPROVED COOLING, DISCOVER THE BENEFITS OF THE SHW PIN-DRIVE BRAKE ROTOR SYSTEM
Innovation, sustainability, added value. Welcome to SHW's patented Pin-Drive system, a substantial step forward in the future of braking.
SHW's Pin-Drive system carries many benefits when compared to conventional methods of disc brake rotor design. So, what is 'Pin-Drive' and why is it advantageous over a one-piece disc brake rotor?
The Pin-Drive system is a two piece fully floating disc brake rotor. The friction ring is connected to the central aluminium rotor bell by means of stainless steel pins which are cast into the assembly during the manufacturing process. The purpose behind the design is to offer a range of advantages:
- Up to 5.5lbs of weight reduction (rotating and unsprung weight) per disc compared to Monoblock.
- Reduced thermal strain thanks to the friction ring having more freedom to expand and contract.
- Low brake fading properties.
- Improved durability.
- Enhanced brake comfort thanks to optimised thermal conditions.
- Optimal curved vane design that maintains structural strength while improving noise dampening.
UNPARALLELED COOLING ADVANTAGES.
MAINTAIN OPTIMUM BRAKING PERFORMANCE FOR LONGER WITH IMPROVED COOLING PROPERTIES.
As well as a reduction in unsprung weight and improved braking characteristics, SHW's Pin-Drive design also prides itself on offering unbeatable cooling advantages, just one of the reasons why it has become the first choice for many OEM's.
Unlike other brake manufacturers, SHW developed a PATENTED improvement of the disc construction by offsetting the pin connection of the friction ring to the aluminium disc bell away from the center to the edge, which results in huge cooling gains.
By offsetting the pin connection of the friction ring to the aluminium bell the cooling channels running centrally through the rotor see a huge increase in accessibility and cooler air flow. This advantageous design offers up to a 50% cooling advantage gain when compared to traditional designs.
Allowing a greater flow of air, heat generated on the surface of the friction ring (via the brake pads clamping down under braking) is carried away faster and more efficiently, dramatically reducing inner core and surface temperatures across the complete disc brake rotor. In addition, due to the unique patented design, further weight savings are achieved thanks to a shallow aluminium disc bell.
THE IMPORTANCE OF AIR FLOW. WHEN AIR FLOW IS PARAMOUNT TO PERFORMANCE. THE LOWER THE OPERATING TEMPERATURES, THE HIGHER THE PERFORMANCE. The cold air is traditionally fed via air ducts located either in the front bumper, or channeled through pathways on the underside of the vehicles under tray. As the cold air enters the rear of the disc bell, it passes through vanes between the two brake rotor faces. The cooler air helps to reduce temperatures from the very core of the brake disc by collecting heat and carrying it outwards, away from the brake disc assembly and eventually venting back out into the passing air flow found circulating the inner wheel.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.2.F.ZIM.1
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
Brake Disc Ø: 380mm
Brake Disc Thickness: 34 mm,
Brake Disc Type: internally vented, two-part brake disc, Drilled-Dimpled

Porsche 911 (997) GT3 MKII 2010> (M449 steel disc) FRONT
SHW PERFORMANCE, one of the world's leading brake disc manufacturers supplying directly to OEM, with product featured as standard equipment on many of today's new performance vehicles.
THE ONLY TRUE REPLACEMENT.
NOTHING LESS THAN A TRUE FACTORY EQUIVALENT
SHW PERFORMANCE produces both one and two piece, ventilated disc brake rotors to cover a wide range of vehicle applications.The vehicle application automatically dictates which style, composition and type of disc brake rotor is available, as SHW only offer a genuine direct replacement for the factory supplied disc.For lesser performance orientated vehicles, a ventilated monoblock disc brake rotor produced from cast iron will more than suffice. For vehicles placing greater demand on the needed stopping power, a lightweight, composite, fully floating two-piece design is often preferred (the style of which is referred commonly as a peg or pin drive system).
PERFORMANCE UNDER PRESSURE.
CONSISTENT RELIABILITY AND PERFORMANCE UNDER THE MOST DEMANDING OF CONDITIONS
Quality is a key ingredient from which to guarantee long term repeated reliability. SHW products are built to carry the high expectations required by exacting OEM standards and exceed them where possible.
PATENTED DESIGN PIN-DRIVE SYSTEM.
FROM WEIGHT REDUCTION TO IMPROVED COOLING, DISCOVER THE BENEFITS OF THE SHW PIN-DRIVE BRAKE ROTOR SYSTEM
Innovation, sustainability, added value. Welcome to SHW's patented Pin-Drive system, a substantial step forward in the future of braking.
SHW's Pin-Drive system carries many benefits when compared to conventional methods of disc brake rotor design. So, what is 'Pin-Drive' and why is it advantageous over a one-piece disc brake rotor?
The Pin-Drive system is a two piece fully floating disc brake rotor. The friction ring is connected to the central aluminium rotor bell by means of stainless steel pins which are cast into the assembly during the manufacturing process. The purpose behind the design is to offer a range of advantages:
- Up to 5.5lbs of weight reduction (rotating and unsprung weight) per disc compared to Monoblock.
- Reduced thermal strain thanks to the friction ring having more freedom to expand and contract.
- Low brake fading properties.
- Improved durability.
- Enhanced brake comfort thanks to optimised thermal conditions.
- Optimal curved vane design that maintains structural strength while improving noise dampening.
UNPARALLELED COOLING ADVANTAGES.
MAINTAIN OPTIMUM BRAKING PERFORMANCE FOR LONGER WITH IMPROVED COOLING PROPERTIES.
As well as a reduction in unsprung weight and improved braking characteristics, SHW's Pin-Drive design also prides itself on offering unbeatable cooling advantages, just one of the reasons why it has become the first choice for many OEM's.
Unlike other brake manufacturers, SHW developed a PATENTED improvement of the disc construction by offsetting the pin connection of the friction ring to the aluminium disc bell away from the center to the edge, which results in huge cooling gains.
By offsetting the pin connection of the friction ring to the aluminium bell the cooling channels running centrally through the rotor see a huge increase in accessibility and cooler air flow. This advantageous design offers up to a 50% cooling advantage gain when compared to traditional designs.
Allowing a greater flow of air, heat generated on the surface of the friction ring (via the brake pads clamping down under braking) is carried away faster and more efficiently, dramatically reducing inner core and surface temperatures across the complete disc brake rotor. In addition, due to the unique patented design, further weight savings are achieved thanks to a shallow aluminium disc bell.
THE IMPORTANCE OF AIR FLOW. WHEN AIR FLOW IS PARAMOUNT TO PERFORMANCE. THE LOWER THE OPERATING TEMPERATURES, THE HIGHER THE PERFORMANCE. The cold air is traditionally fed via air ducts located either in the front bumper, or channeled through pathways on the underside of the vehicles under tray. As the cold air enters the rear of the disc bell, it passes through vanes between the two brake rotor faces. The cooler air helps to reduce temperatures from the very core of the brake disc by collecting heat and carrying it outwards, away from the brake disc assembly and eventually venting back out into the passing air flow found circulating the inner wheel.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.2.F.ZIM
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
Brake Disc Ø: 380mm
Brake Disc Thickness: 34 mm,
Brake Disc Type: internally vented, two-part brake disc, Drilled-Dimpled

Porsche 911 (997) GT3 MKII 2010> (M449 steel disc) FRONT
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.2.F.SEB
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
Brake Disc Ø: 380mm
Brake Disc Thickness: 34 mm,
Brake Disc Type: internally vented, two-part brake disc, Drilled-Dimpled

Porsche 911 (997) GT3 MKII 2010> (M449 steel disc) FRONT
SHW PERFORMANCE, one of the world's leading brake disc manufacturers supplying directly to OEM, with product featured as standard equipment on many of today's new performance vehicles.
THE ONLY TRUE REPLACEMENT.
NOTHING LESS THAN A TRUE FACTORY EQUIVALENT
SHW PERFORMANCE produces both one and two piece, ventilated disc brake rotors to cover a wide range of vehicle applications.The vehicle application automatically dictates which style, composition and type of disc brake rotor is available, as SHW only offer a genuine direct replacement for the factory supplied disc.For lesser performance orientated vehicles, a ventilated monoblock disc brake rotor produced from cast iron will more than suffice. For vehicles placing greater demand on the needed stopping power, a lightweight, composite, fully floating two-piece design is often preferred (the style of which is referred commonly as a peg or pin drive system).
PERFORMANCE UNDER PRESSURE.
CONSISTENT RELIABILITY AND PERFORMANCE UNDER THE MOST DEMANDING OF CONDITIONS
Quality is a key ingredient from which to guarantee long term repeated reliability. SHW products are built to carry the high expectations required by exacting OEM standards and exceed them where possible.
PATENTED DESIGN PIN-DRIVE SYSTEM.
FROM WEIGHT REDUCTION TO IMPROVED COOLING, DISCOVER THE BENEFITS OF THE SHW PIN-DRIVE BRAKE ROTOR SYSTEM
Innovation, sustainability, added value. Welcome to SHW's patented Pin-Drive system, a substantial step forward in the future of braking.
SHW's Pin-Drive system carries many benefits when compared to conventional methods of disc brake rotor design. So, what is 'Pin-Drive' and why is it advantageous over a one-piece disc brake rotor?
The Pin-Drive system is a two piece fully floating disc brake rotor. The friction ring is connected to the central aluminium rotor bell by means of stainless steel pins which are cast into the assembly during the manufacturing process. The purpose behind the design is to offer a range of advantages:
- Up to 5.5lbs of weight reduction (rotating and unsprung weight) per disc compared to Monoblock.
- Reduced thermal strain thanks to the friction ring having more freedom to expand and contract.
- Low brake fading properties.
- Improved durability.
- Enhanced brake comfort thanks to optimised thermal conditions.
- Optimal curved vane design that maintains structural strength while improving noise dampening.
UNPARALLELED COOLING ADVANTAGES.
MAINTAIN OPTIMUM BRAKING PERFORMANCE FOR LONGER WITH IMPROVED COOLING PROPERTIES.
As well as a reduction in unsprung weight and improved braking characteristics, SHW's Pin-Drive design also prides itself on offering unbeatable cooling advantages, just one of the reasons why it has become the first choice for many OEM's.
Unlike other brake manufacturers, SHW developed a PATENTED improvement of the disc construction by offsetting the pin connection of the friction ring to the aluminium disc bell away from the center to the edge, which results in huge cooling gains.
By offsetting the pin connection of the friction ring to the aluminium bell the cooling channels running centrally through the rotor see a huge increase in accessibility and cooler air flow. This advantageous design offers up to a 50% cooling advantage gain when compared to traditional designs.
Allowing a greater flow of air, heat generated on the surface of the friction ring (via the brake pads clamping down under braking) is carried away faster and more efficiently, dramatically reducing inner core and surface temperatures across the complete disc brake rotor. In addition, due to the unique patented design, further weight savings are achieved thanks to a shallow aluminium disc bell.
THE IMPORTANCE OF AIR FLOW. WHEN AIR FLOW IS PARAMOUNT TO PERFORMANCE. THE LOWER THE OPERATING TEMPERATURES, THE HIGHER THE PERFORMANCE. The cold air is traditionally fed via air ducts located either in the front bumper, or channeled through pathways on the underside of the vehicles under tray. As the cold air enters the rear of the disc bell, it passes through vanes between the two brake rotor faces. The cooler air helps to reduce temperatures from the very core of the brake disc by collecting heat and carrying it outwards, away from the brake disc assembly and eventually venting back out into the passing air flow found circulating the inner wheel.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.2.F.SHW
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
Notes: Not for models with Code 450 Porsche Ceramic Composite Brakes (PCCB)

Porsche 997 GT3 2010 - 11 (REAR)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.2.R.SHW
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010-11
Restore the function and finish of your classic Porsche’s pop-out quarter windows with this complete rear quarter window handle set, including left and right opening handles and the base gaskets for a perfect seal.
SET OF 2, left and right handles plus base gaskets.
Fits:
Porsche 911/912 1965 - 1977
Diagram ref no 14 and 18
Kit included:
• 1x 90154304121 - left handle
• 1x 90154304221 - right handle
• 2x 90154349121 - plastic base gaskets
• Position: Rear quarter windows, left and right
• Type: Complete latch and seal set for pop-out (hinged) windows
• Function: The handles provide smooth, secure opening and closing of the rear quarter windows, while the base gaskets seal the hinge area against moisture and protect paintwork. Together, they restore correct alignment, sealing, and ease of operation for your vent windows.
• Benefits: Factory-correct appearance and motion, Leak-free sealing around base mounts, Restored smooth operation and proper window tension.
Over decades of use, the original handles can corrode or seize, and the gaskets flatten or crack, allowing water ingress and rattles.
Replace when:
• Handles are pitted, stiff, or loose
• Windows won’t stay latched or aligned
• During bodywork, interior restoration, or seal replacement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90154304X21
The product you are viewing cross references to these numbers
- 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 1975-1977 3.0L Turbo (930)
Disc Size 350mm x 34mm Notes: With Code 449 Steel Brake Discs


Porsche 997 GT3 MK1 (FRONT)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.1.F.ZIM
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
Disc Size 350mm x 34mm Notes: With Code 449 Steel Brake Discs


Porsche 997 GT3 MK1 (FRONT)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.1.F.SEB
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
Disc Size 350mm x 34mm Notes: With Code 449 Steel Brake Discs


Porsche 997 GT3 MK1 (FRONT)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.1.F.SHW
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
With TRW brake pads 
Porsche 997 GT3 MK1 (REAR)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.1.R.ZIM
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
With TRW brake pads
Notes: With Code 449 Steel Brake Discs
Porsche 997 GT3 MK1 (REAR)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.1.R.SEB
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
With TRW brake pads
Notes: With Code 449 Steel Brake Discs
Porsche 997 GT3 MK1 (REAR)
This package includes Original Equipment Quality (OEQ) parts
Standard Replacement
For more information about OEQ Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT997GT3.1.R.SHW
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09


Porsche 996 C4S
Porsche 996 Turbo 2000>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT996TT.F.UG.ZIM
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05


Porsche 996 C4S
Porsche 996 Turbo 2000>>
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05


Porsche 996 C4S
Porsche 996 Turbo 2000>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEKIT996TT.F.UG.SHW
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05