C6 Corvette DBA 4000 Series T3 Rear Brake Rotors
The DBA 4000 Series T3 Rear Brake Rotors are direct-replacement performance rotors for 2005–2013 C6 Corvette Base Coupe and Convertible models. Choose the JL9 standard-brake option with DBA42995S 305 mm rotors or the larger J55 Z51/heavy-duty brake option with DBA42991S 330 mm rotors. This listing includes a complete pair of two rear rotors for the selected factory C6 Corvette brake package.
Product Details
- Brand: DBA – Disc Brakes Australia
- Product Line: 4000 Series T3
- Product Type: Slotted rear brake rotors
- Fitment: 2005–2013 C6 Corvette Base Coupe and Convertible
- Position: Rear axle
- Included Quantity: Two rear rotors, complete pair
- Standard Brakes: RPO JL9 – DBA42995S – 305 mm
- Z51 / Heavy-Duty Brakes: RPO J55 – DBA42991S – 330 mm
- Construction: One-piece vented rotors
- Rotor Material: High-carbon alloyed iron
- Surface: CNC-machined T3 slots
- Slot Design: Bi-directional
- Internal Ventilation: DBA Kangaroo Paw ventilation
- Brake Pads Included: No
- Shipping: $9.99 in the USA
Benefits
- Includes two rotors for a complete C6 Corvette rear brake service
- Separate JL9 and J55 options provide the correct factory brake-package fitment
- Direct replacement for the original rear calipers and mounting brackets
- T3 slots help clear brake dust and friction gases from the pad surface
- Bi-directional design allows either rotor to be installed on either side
- High-carbon iron construction supports consistent performance during repeated braking
- Kangaroo Paw ventilation promotes airflow and heat dissipation
- Suitable for daily driving and performance street use
What to Expect
The DBA 4000 Series T3 is a factory-size, one-piece rotor upgrade rather than a big-brake conversion. It retains the original C6 Corvette rear calipers and mounting locations while adding DBA’s T3 slot pattern, high-carbon iron construction, and performance-focused ventilation.
C6 Corvette Base models use two different rear rotor sizes. The JL9 standard-brake system uses 305 mm rotors, while the J55 Z51 or heavy-duty brake system uses larger 330 mm rotors. Check the vehicle’s RPO label before selecting a variant.
Technical Specifications
- JL9 Part Number: DBA42995S per rotor
- JL9 Outside Diameter: 305 mm / approximately 12 inches
- JL9 Overall Height: 49 mm
- J55 Part Number: DBA42991S per rotor
- J55 Outside Diameter: 330 mm / approximately 13 inches
- J55 Overall Height: 50 mm
- Rotor Thickness: 26 mm
- Minimum Thickness: 24 mm
- Center Bore: 70.7 mm
- Bolt Pattern: 5 × 120.65 mm / 5 × 4.75 inches
- Vane Design: DBA Kangaroo Paw vents
Installation Overview
These DBA rear rotors install in the factory C6 Corvette rotor locations and work with the original calipers and mounting brackets for the selected JL9 or J55 brake package. No rotor adapters or caliper relocation brackets are required when the correct variant is selected.
Install both rotors together, clean the rotor and wheel-hub mounting surfaces, inspect the brake pads and caliper hardware, and follow the DBA and brake-pad manufacturer bedding procedures after installation.
Important Notes
- This listing is for a pair. Quantity one includes two rear brake rotors.
- Check the RPO label inside the Corvette’s glove box before ordering.
- RPO JL9: Select DBA42995S with 305 mm rear rotors.
- RPO J55: Select DBA42991S with 330 mm rear rotors.
- 2005–2009 C6 Corvettes equipped with the Z51 package use the J55 brake system.
- For other Base models, select by the listed RPO brake code rather than model year alone.
- Brake pads, calipers, brake fluid, hoses, and installation hardware are not included.
- These variants do not fit C6 Grand Sport, Z06, ZR1, 427 Convertible, or aftermarket big-brake systems.
CORVETTE COMPATIBILITY
- Generation: C6 Corvette
- Model Years: 2005–2013
- Models: Base Coupe and Convertible
- Engines: LS2 6.0L V8 and LS3 6.2L V8
- Standard Brake Package: RPO JL9 with 305 mm rear rotors
- Z51 / Heavy-Duty Brake Package: RPO J55 with 330 mm rear rotors
- Brake Position: Rear axle
- Body Styles: Coupe and convertible
Why Buy DBA C6 Corvette Brake Rotors From Custom Corvette Accessories?
Custom Corvette Accessories is enthusiast owned and operated, so correct Corvette brake-package fitment and clear ordering information matter. This page separates the JL9 and J55 rear brake systems and includes the complete pair of DBA 4000 Series T3 rotors needed for the selected C6 Corvette application.
✅ In-stock items ship within 24–48 hours via Standard Ground.
✅ Free shipping items are available in the Continental US only.
✅ Custom quotes available for 2-Day, Next Day, or Saturday delivery.
✅ Custom or backordered items ship as soon as available.
