Side Sill Panels
 Side sill outer panel. Porsche 996 Carrera C2 / C4 Cabrio
                        
                    
            
            
                    Side sill outer panel. Porsche 996 Carrera C2 / C4 Cabrio
                     
            
            
                    - 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
 
 Fits:
Porsche 996 C2 / C4 1998-05 CABRIO
Click 'Zoom in' for large parts diagram.
Diagram ref no 3.
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                     Door sill support. Porsche 996
                        
                    
            
            
                    Door sill support. Porsche 996
                     
            
            
                    - 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

Fits:
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
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9965516
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                     Expander nut for Door sill trim. Porsche 996 / 997 / Boxster / Cayman
                        
                    
            
            
                    Expander nut for Door sill trim. Porsche 996 / 997 / Boxster / Cayman
                     
            
            
                    - 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 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- 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 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 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 Turbo 2010-13
- 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
Sold each.

Fits:
Porsche 996 1998-04
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2006-08
Porsche 987C.2 Cayman 2009-12
Diagram ref no 6
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99950748440
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                     Rocker panel reinforcement. Porsche 996 / 997 Coupe / Targa
                        
                    
            
            
                    Rocker panel reinforcement. Porsche 996 / 997 Coupe / Targa
                     
            
            
                    - 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 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 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13

Fits:
For Coupe and Targa models
Porsche 996 1998-05
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
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99650273
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                     Rust repair panels for side sills to rear 1/4 panels Porsche 996
                        
                    
            
            
                    Rust repair panels for side sills to rear 1/4 panels Porsche 996
                     
            
            
                    - 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 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04

The problem!   Porsche 996 rear wing and inner arch have a double skin join at the outer lips and this is where the rust is occurring. Once they start bubbling on the outside then its most likely a cut out and replace job for theses sections. At the complete rear wings are hard to find Design911 have come up with a less expensive solution by suppling just the rear replacement side sill panels and arches (sold separately). 
Fits: Porsche 996 C2 / C4 Standard body
 
 Click picture for large parts diagram.
Diagram ref no 1.
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99650396020
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                     Side Sill Outer Panel Coupe. Porsche 996 Carrera C2 / C4
                        
                    
            
            
                    Side Sill Outer Panel Coupe. Porsche 996 Carrera C2 / C4
                     
            
            
                    - 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
left or right side
Fits:
Porsche 996 C2 / C4 1998-05
 
 Click picture for large parts diagram.
Diagram ref no 3.
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                     Side sill trim / skirt. Porsche 996 / 996 GT3RS
                        
                    
            
            
                    Side sill trim / skirt. Porsche 996 / 996 GT3RS
                     
            
            
                    - 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 GT3 RS 2003-04

Fits:
For cars with Aerokit Cup (IXAA) and Inner door sill guard, left/right (IX76)
Porsche 996 Carrera 2003>>
Porsche 996 GT3 RS 2003>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
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99655998
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                     Tapping Screw. Porsche Boxster / Cayman / 996 / 997
                        
                    
            
            
                    Tapping Screw. Porsche Boxster / Cayman / 996 / 997
                     
            
            
                    - 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 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- 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 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 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- 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 GT4 3.8L 2015-16
Torx-head - 4.8 x 16mm

Fits:
Porsche Boxster
Porsche Cayman
Porsche 996
Porsche 997
Click 'Zoom in' for large parts diagram.
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                    Reinforce your Porsche’s strength, style, and structure with genuine Porsche and reproduction side sill panels from Design911. The side sill, also known as the rocker panel, is a vital component of your vehicle’s chassis and lower body structure - providing rigidity, impact protection, and smooth aerodynamic flow along the sides of the car.
Over time, sill panels can become corroded or damaged, especially on classic Porsche models. Design911 offers a complete selection of OEM and reproduction sill panels engineered to original factory dimensions and specifications, ensuring flawless alignment, superior rust protection, and seamless integration with surrounding panels.
Whether you’re performing a concours-level restoration, repairing damage, or upgrading body rigidity, our side sill panels deliver authentic Porsche craftsmanship and durability.
Genuine Porsche Side Sill Panels
OEM factory panels designed to match Porsche’s exact fit and
finish. Provide original strength, shape, and corrosion protection for a
perfect body restoration.
Reproduction Sill Panels
High-quality reproduction panels made to OEM dimensions.
Ideal for classic Porsche restorations where originality and affordability are
key.
Outer Sill Panels
Visible body components that form the lower edge of the
vehicle’s side profile. Protect the frame and enhance the Porsche’s exterior
aesthetics.
Inner Sill Reinforcement Panels
Structural inner panels that add rigidity and support to the
chassis. Critical for maintaining Porsche’s signature handling and safety.
Sill Repair Sections
Localized repair panels that allow partial restoration of
damaged or corroded areas without replacing the entire sill assembly.
Mounting Brackets, Caps & Fittings
All necessary mounting accessories and end caps for accurate
installation and long-term durability of Porsche sill assemblies.
 
 
         
                
                
                    
 
                                     
                                     
                                     
                                     
                                     
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                