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Centric 228.37034 Disc Brake Rotor - Front Left
| Brand | Centric 228.37034 |
|---|---|
| Position | Front Left |
| Discard Thickness | 1.024 |
| Discard Thickness | 26.000 |
| Nominal Thickness | 1.098 |
| Nominal Thickness | 27.900 |
| Overall Height | 2.646 |
| Overall Height | 67.200 |
| Outside Diameter | 12.520 |
| Outside Diameter | 318.000 |
| ABS Tone Ring Included | No |
| Surface Type | X drilled |
| Solid Or Vented Type Rotor | Vented |
| Bearings Included | No |
| Center Hole Diameter | 3.858 |
| Center Hole Diameter | 98.000 |
| Mounting Bolt Hole Circle Diameter | 130.000 |
| Mounting Bolt Hole Circle Diameter | 5.118 |
| Stud/Lug Hole Quantity | 5 |
| Stud/Lug Hole Diameter | 0.606 |
| Stud/Lug Hole Diameter | 15.400 |
| Disc Mounting [cntrc] | Floating |
| Misc Holes [cntrc] | 4 |
| Vane Style [cntrc] | Curved |
| Weight [cntrc] kgs | 9.020 |
| Weight [cntrc] lbs | 19.850 |
| Product line | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| Fits | Porsche · 50 vehicles |
Cross-drilled design. Adds bite and improves braking feel.
Vented rotor. Curved vanes help move air through the rotor.
Floating mount. Built for consistent disc engagement.
Cross-references Centric Parts 228.37034, Dorman - HELP 34190 and Raybestos Brakes 96963R for the same application. See all 7.
Centric C-TEK Cross-Drilled Rotor Overview
The Centric C-TEK Standard Cross-Drilled Disc Brake Rotor, part number 228.37034, is a front left vented rotor built for Porsche applications that call for a drilled iron disc. Its X-drilled surface and curved vane design support stronger initial pad bite while also giving the brake package a more performance-focused appearance.
For Porsche Boxster, Cayman, and 911 owners looking for a direct-fit front left brake rotor, 228.37034 provides the dimensions and mounting layout needed for the listed applications. The Centric C-TEK Standard Cross-Drilled Disc Brake Rotors line focuses on drilled rotor construction for drivers who want OE-style fitment with a sport-oriented finish.
Key Features
- Part number 228.37034
- Front left disc brake rotor for select Porsche models
- X-drilled surface for added initial bite
- Vented rotor design with curved vanes for heat management
- Outside diameter: 12.520 in. / 318.0 mm
- Nominal thickness: 1.098 in. / 27.9 mm
- Discard thickness: 1.024 in. / 26.0 mm
- 5-lug pattern with 130 mm bolt circle
- Center hole diameter: 3.858 in. / 98.0 mm
- Floating disc mounting style
Detailed Description
Centric engineered this rotor for Porsche brake systems that use a 318 mm front left vented disc with a 5-lug, 130 mm bolt circle. The drilled face helps evacuate gases and water from the pad contact area, while the curved vane internal design supports airflow through the rotor during repeated braking. This makes 228.37034 a practical choice for drivers replacing a worn front left rotor on a Porsche Boxster, Cayman, or 911.
Fitment includes 2005-2012 Porsche Boxster, front left; 2007-2012 Porsche Cayman, front left; 2005-2008 Porsche 911, front left; 2006 Porsche Cayman, front left; 1999-2004 Porsche 911, front left; 2000-2004 Porsche Boxster, front left; and 1999-2002 Porsche 911, front left. This part cross-references Raybestos Brakes 96963R for the same application.
What This Rotor Helps Address
- Brake fade from heat buildup during repeated stops
- Reduced initial pad bite from a worn or glazed rotor surface
- Rotor replacement needs on a front left Porsche brake corner
- Surface corrosion and uneven braking feel on an aging disc
- Brake appearance updates for a drilled rotor setup
Installation Notes and Tips
Verify rotor diameter, center bore, bolt circle, and thickness before installation. This rotor is for front left applications only and does not include ABS tone ring or bearings. Inspect pads, caliper condition, and hub surfaces during service, and confirm the rotor meets the vehicle’s minimum thickness specification before use.
Quality Assurance
Centric’s C-TEK Standard Cross-Drilled Disc Brake Rotors line is built around application-specific fitment and drilled rotor construction for consistent replacement service on listed Porsche models. Part number 228.37034 is matched to the stated dimensions and mounting configuration for the covered vehicles.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2012 | Porsche | Boxster | — | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2012 | Porsche | Cayman | — | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2011 | Porsche | Boxster | — | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2011 | Porsche | Cayman | — | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2010 | Porsche | Boxster | — | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2010 | Porsche | Cayman | — | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2009 | Porsche | Boxster | — | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2009 | Porsche | Cayman | — | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | 911 | Targa 4 | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | 911 | Carrera | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | 911 | Carrera 4 | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | Boxster | S | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | Boxster | S Limited Edition | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | Boxster | RS 60 Spyder | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | Cayman | S | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2008 | Porsche | Cayman | S Porsche Design | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2007 | Porsche | 911 | Targa 4 | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2007 | Porsche | 911 | Carrera | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2007 | Porsche | 911 | Carrera 4 | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2007 | Porsche | Boxster | S | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2007 | Porsche | Cayman | S | Front Left | Cross Drilled Iron Discs; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2006 | Porsche | 911 | Carrera | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2006 | Porsche | 911 | Carrera 4 | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2006 | Porsche | Boxster | S | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2006 | Porsche | Cayman | — | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2005 | Porsche | 911 | Targa | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2005 | Porsche | 911 | Carrera | Front Left | Fits in place of original iron disc brake rotor.; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2005 | Porsche | Boxster | S | Front Left | Cross Drilled Iron Disc; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2004 | Porsche | 911 | Targa | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2004 | Porsche | 911 | Carrera | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2004 | Porsche | 911 | Carrera 4 | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2004 | Porsche | 911 | 40th Anniversary Edition | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2004 | Porsche | Boxster | S | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2004 | Porsche | Boxster | S Special Edition | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2003 | Porsche | 911 | Targa | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2003 | Porsche | 911 | Carrera | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2003 | Porsche | 911 | Carrera 4 | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2003 | Porsche | Boxster | Roadster S | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2002 | Porsche | 911 | Targa | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2002 | Porsche | 911 | Carrera | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2002 | Porsche | 911 | Carrera 4 | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2002 | Porsche | Boxster | Roadster S | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2001 | Porsche | 911 | Carrera | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2001 | Porsche | 911 | Carrera 4 | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2001 | Porsche | Boxster | Roadster S | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2000 | Porsche | 911 | Carrera | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2000 | Porsche | 911 | Carrera 4 | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 2000 | Porsche | Boxster | Roadster S | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 1999 | Porsche | 911 | Carrera | Front Left | C-TEK Standard Cross-Drilled Disc Brake Rotors |
| 1999 | Porsche | 911 | Carrera 4 | Front Left | exc Turbo Look; C-TEK Standard Cross-Drilled Disc Brake Rotors |
| No rows match your filter. | |||||