The Bilstein 24-066785 is a B6 Performance front monotube shock absorber purpose-built for 2000 to 2003 Audi A8 Quattro and S8 Quattro models. The 24-066785 provides a firm, performance-oriented upgrade over factory damping characteristics while maintaining full compatibility with the original A8 D2 coil springs. Bilstein engineers the B6 with application-specific monotube valve settings derived from real-world driving tests on the Audi A8 D2 platform, delivering improved steering response, reduced body roll, and more predictable handling in hard cornering and emergency maneuvers without sacrificing everyday ride comfort.
Unlike twintube designs, the 24-066785 uses a single-tube monotube construction where the working piston operates directly inside the main pressure tube. This eliminates the thermal limitations of an inner and outer tube arrangement, allowing the B6 to maintain consistent damping output even under sustained high-speed driving loads. The 24-066785 uses a stem upper mount and clevis lower mount and is finished in Bilstein’s signature yellow with zinc plating for corrosion resistance. The extended length is 25.14 inches and the compressed length is 18.19 inches, providing 6.95 inches of travel matched to the A8 D2 front suspension geometry.
Key Features
- B6 Performance monotube shock for Audi A8 Quattro and S8 Quattro front suspension
- Application-specific valving developed from Bilstein driving tests on the A8 D2 platform
- Performance upgrade over OE damping while retaining OE spring compatibility
- Monotube design eliminates heat buildup and maintains consistent damping output
- Stem upper mount, clevis lower mount for direct OE replacement fit
- 6.95 in travel, zinc plated finish for corrosion resistance
- Compatible with OE springs or performance lowering springs
- No modifications required, direct bolt-in installation
Vehicle Fitment
| Year | Make | Model | Submodel | Position |
|---|---|---|---|---|
| 2000 | Audi | A8 Quattro | Base | Front |
| 2001 | Audi | A8 Quattro | Base | Front |
| 2002 | Audi | A8 Quattro | Base | Front |
| 2003 | Audi | A8 Quattro | Base | Front |
| 2001 | Audi | S8 | Base | Front |
| 2002 | Audi | S8 | Base | Front |
| 2003 | Audi | S8 | Base | Front |
Product Specifications
| Specification | Detail |
|---|---|
| Part Number | 24-066785 |
| Brand | Bilstein |
| Series | B6 Performance |
| Position | Front |
| Shock Design | 46mm Monotube Gas Pressure |
| Adjustability | Non-Adjustable |
| Upper Mount Type | Stem |
| Lower Mount Type | Clevis (Fork) |
| Extended Length | 25.14 in (638.6mm) |
| Compressed Length | 18.19 in (462mm) |
| Travel | 6.95 in (176.5mm) |
| Finish | Yellow, Zinc Plated |
| Spring Compatibility | OE Springs or Lowering Springs |
| Warranty | Bilstein Limited Lifetime Warranty |
| EAN | 4025258634346 |
What’s Included
- 1x Bilstein 24-066785 B6 front shock absorber
Installation Notes
The Bilstein 24-066785 is a direct replacement for the front shock absorber on 2000 to 2003 Audi A8 Quattro and 2001 to 2003 S8 models. The stem upper and clevis lower mounts match the OE fastener locations exactly. Bilstein recommends replacing shocks in axle pairs. Perform a full wheel alignment after installation. No TUV registration or parts certificate is required for this direct OE replacement application. Torque all suspension fasteners to Audi OE specification.
Frequently Asked Questions
What vehicles does the Bilstein 24-066785 fit?
The 24-066785 fits 2000 to 2003 Audi A8 Quattro and 2001 to 2003 Audi S8 front suspension positions. This covers the A8 D2 chassis generation (4D2 and 4D8 body codes) in both standard and long-wheelbase configurations.
What is the difference between the B4 and B6 for the Audi A8?
The B4 OE Replacement series is tuned to restore the factory ride quality of the original damper. The B6 Performance series (24-066785) provides a firmer, more performance-oriented upgrade with specific valve settings developed through Bilstein driving tests on the A8 D2 platform. The B6 is the correct choice for drivers who want improved handling response over stock.
Will the 24-066785 work with the factory A8 coil springs?
Yes. The Bilstein B6 series is specifically designed to pair with OE factory springs. The 24-066785 will also work with performance lowering springs at modest drop levels. If the vehicle is running air suspension, a conversion kit is required before any conventional shock can be installed.
Is the 24-066785 compatible with the S8?
Yes. The 24-066785 fits the 2001 to 2003 Audi S8 front suspension. The S8 shares the D2 A8 platform and front suspension geometry, making the 24-066785 a direct fit for both models.
Does the 24-066785 require any modifications to install?
No. The 24-066785 is a direct bolt-in replacement. No TUV registration or parts certificate is required in the European market. In US applications, no modifications to the vehicle or suspension components are needed.
What is the warranty on the Bilstein 24-066785?
The 24-066785 is covered by Bilstein’s limited lifetime warranty against defects in materials and workmanship. As a suspension component, the Magnuson-Moss Warranty Act provides federal consumer protections that prevent vehicle manufacturers from voiding your warranty on unrelated components due to the use of quality aftermarket suspension parts.
Should I replace front shocks in pairs?
Yes. Bilstein recommends replacing shock absorbers in axle pairs. Installing one new shock while leaving a worn unit on the opposite side creates unbalanced damping across the front axle, which can affect handling, braking stability, and tire wear.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov.
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