do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- 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 914 (1970-1976)
Front Brake Disc Backing Plate - fits Left or Right
Sold each - 2 required per car
Restore proper brake protection and factory-correct
appearance with this OE Match Front Brake Disc Backing Plate.
This component forms an important part of the
braking system by protecting the brake disc assembly from road debris while
helping to manage airflow around the brake components.
Fits:
- 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 914 (1970-1976)
Often referred to as a brake dust shield or brake disc splash guard, the backing plate sits behind the brake disc and provides a protective barrier between the braking system and contaminants thrown up from the road. It also helps guide cooling airflow around the brake assembly, contributing to consistent braking performance.
As these plates are mounted underneath the vehicle, they are frequently exposed to moisture, road salt, stone impacts and corrosion. Replacing damaged or rusted backing plates helps maintain brake system protection while restoring the appearance of the suspension and braking assembly.
What Does a Brake Disc Backing Plate Do?
The brake disc backing plate performs several important functions within the braking system.
Its primary roles include:
- Protecting the brake disc from road debris
- Shielding brake components from dirt and water
- Helping manage brake cooling airflow
- Reducing contamination around the brake assembly
- Protecting wheel bearing components
- Supporting long-term brake system reliability
- Maintaining factory brake system design
Although often overlooked, the backing plate contributes to the overall durability and effectiveness of the braking system.
Why Do Brake Disc Backing Plates Fail?
Brake backing plates are constantly exposed to harsh operating conditions beneath the vehicle.
Common causes of failure include:
- Corrosion caused by moisture and road salt
- Stone and debris impact damage
- Accident or kerb strike damage
- Age-related deterioration
- Metal fatigue
- Improper handling during brake servicing
- Long-term environmental exposure
Over time, corrosion can weaken the plate, causing distortion, cracking or complete failure.
When Should a Brake Disc Backing Plate Be Replaced?
Brake backing plates should be inspected whenever brake discs or wheel bearings are serviced.
Common signs replacement is required include:
- Visible rust or corrosion
- Cracked or damaged plate edges
- Bent or distorted backing plates
- Contact between the plate and brake disc
- Excessive brake dust contamination
- Missing sections caused by corrosion
- Restoration or refurbishment projects
- Suspension rebuild work
If the backing plate begins rubbing against the brake disc, it should be replaced immediately to prevent noise and potential damage.
Why Replacement Matters
A damaged brake backing plate can compromise protection of the braking system and detract from the quality of a restoration.
Benefits of replacement include:
- Improved brake component protection
- Reduced contamination from road debris
- Correct brake cooling airflow management
- Improved reliability
- Restoration of factory appearance
- Prevention of brake disc contact issues
- Enhanced long-term durability
- Ideal for restoration and maintenance projects
For classic Porsche models, replacing worn backing plates helps preserve both function and originality.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135180117
The product you are viewing cross references to these numbers
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- 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 997 C2 MKI 2005-08
Porsche 997 C2 MKII 2009>>
Porsche 987 MKI Boxster 2005-08
Porsche 987 MKII Boxster 2009>>
Porsche 987C MKI Cayman 2005-08
Porsche 987C MKII Cayman 2009>>
Click 'Zoom in' for large parts diagram.
Diagram Ref No 3
Left or right side.
Please select below.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99735180
The product you are viewing cross references to these numbers
- Porsche Boxster S 986 3.2L 1999-02
- 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 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
Fits:
Porsche 986 Boxster S 3.2L 1997-04
Porsche 987 MKI Boxster 2005-08
porsche 987 MKII Boxster 2009>>
Porsche 987C MKI Cayman 2005-08
Porsche 987C MKII Cayman 2009>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98735280100
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 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 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- 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 996 1998-05
Porsche 997 MKI 2005-08
Porsche 997 MKII 2009>>
Porsche 986 Boxster 1997-04
Porsche 987 MKI Boxster 2005-08
Porsche 987 MKII Boxster 2009>>
Porsche 987C MKI Cayman 2005-08
Porsche 987C MKI Cayman 2009>>
Diagram Ref No 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAF100829
The product you are viewing cross references to these numbers