Bilstein 19-109510 B4 OE Replacement Front Shock for 2002-2008 Audi A4 Quattro

Vehicle Fitment

• 2002-2005 Audi A4 Sedan (B6, FWD, Sports Suspension, up to VIN 8E-2-400 000) - 1.8T 1.8L I4, 2.0 FSI 2.0L I4, 2.4 2.4L V6, 3.0 3.0L V6, 1.9 TDI 1.9L I4, 2.5 TDI 2.5L V6
• 2002-2005 Audi A4 Quattro Sedan (B6, AWD, Sports Suspension, up to VIN 8E-2-400 000) - 1.8T quattro 1.8L I4, 3.0 quattro 3.0L V6, 1.9 TDI quattro 1.9L I4, 2.5 TDI quattro 2.5L V6
• 2002-2005 Audi A4 Avant (B6, FWD, Sports Suspension, up to VIN 8E-5-400 000) - 1.6 1.6L I4, 1.8T 1.8L I4, 2.0 FSI 2.0L I4, 2.4 2.4L V6, 3.0 3.0L V6, 1.9 TDI 1.9L I4, 2.5 TDI 2.5L V6
• 2002-2005 Audi A4 Quattro Avant (B6, AWD, Sports Suspension, up to VIN 8E-5-400 000) - 1.8T quattro 1.8L I4, 3.0 quattro 3.0L V6, 1.9 TDI quattro 1.9L I4, 2.5 TDI quattro 2.5L V6
• 2003-2006 Audi A4 Cabriolet (B6, FWD, Sports Suspension) - 1.8T 1.8L I4, 2.4 2.4L V6, 3.0 3.0L V6, 1.9 TDI 1.9L I4
• 2003-2006 Audi A4 Quattro Cabriolet (B6, AWD, Sports Suspension) - 1.8T quattro 1.8L I4, 3.0 quattro 3.0L V6
• 2005-2008 Audi A4 Sedan (B7, FWD, Sports Suspension) - 2.0T 2.0L I4, 3.2 FSI 3.2L V6, 1.9 TDI 1.9L I4, 2.0 TDI 2.0L I4
• 2005-2008 Audi A4 Quattro Sedan (B7, AWD, Sports Suspension) - 2.0T quattro 2.0L I4, 3.2 FSI quattro 3.2L V6, 2.0 TDI quattro 2.0L I4
• 2005-2008 Audi A4 Avant (B7, FWD, Sports Suspension) - 2.0T 2.0L I4, 3.2 FSI 3.2L V6, 1.9 TDI 1.9L I4, 2.0 TDI 2.0L I4
• 2005-2008 Audi A4 Quattro Avant (B7, AWD, Sports Suspension) - 2.0T quattro 2.0L I4, 3.2 FSI quattro 3.2L V6, 2.0 TDI quattro 2.0L I4

Fitment Notes

• Fits vehicles equipped with Sports Suspension only - vehicles with the standard (comfort) chassis use a different Bilstein part number
• For B6 Sedan and Avant: fits up to VIN 8E-2-400 000 (Sedan) and 8E-5-400 000 (Avant); vehicles with later VINs require a different part number
• Not recommended for use with lowering springs - intended to restore stock ride height and OE ride quality
• Sold individually - one shock absorber per unit; two required for a complete front axle replacement
• Replaces OEM Audi part numbers: 8E0 413 031 AN, 8E0 413 031 BG, 8E0 413 031 BH, 8E0 413 031 BP, 8E0 413 031 CE, 8E0 413 031 CK, 8E0 413 031 CL

Features

• Twin-tube gas-pressurized design delivers consistent damping performance and a refined OE-quality ride across all driving conditions
• Engineered to OEM specifications - restores factory ride quality, handling precision, and suspension response without modification
• Spring-bearing design integrates the spring seat directly into the shock absorber assembly for simplified installation and proper load transfer
• Gas-charged construction minimizes foaming and aeration inside the damper, ensuring stable and predictable damping performance over time
• Black painted finish provides corrosion resistance for long-term durability in all weather conditions
• Direct OEM fit - no drilling, cutting, or adapters required; installs using factory mounting points and hardware
• Meets or exceeds original equipment standards for damping force, travel, and load capacity
• Backed by Bilstein's Limited Lifetime Warranty against manufacturer defects for gas pressure shock absorbers

Specifications

• Part Number: 19-109510
• Brand: Bilstein
• Series: B4 OE Replacement (Touring Class)
• Position: Front axle (left or right)
• Internal Design: Twin-tube, gas-pressurized
• Collapsed Length: 19.15 in (486.5 mm)
• Extended Length: 24.51 in (622.5 mm)
• Upper Mount Type: Stem
• Lower Mount Type: Clevis
• Spring Seat: Included
• Dust Boot: Not included
• Finish: Black paint
• Ride Height: Stock (OE)
• Adjustable Valving: No
• Quantity: 1 shock absorber

Included Components

• 1x Bilstein B4 Front Shock Absorber with integrated spring seat (19-109510)

Product Description

The Bilstein 19-109510 is a B4 OE Replacement front shock absorber designed specifically for 2002-2008 Audi A4 (B6 and B7 platforms) equipped with the factory sports suspension. Using a twin-tube gas-pressurized design, this shock absorber delivers the same damping characteristics as the original equipment component, restoring factory ride quality and handling precision on vehicles that have experienced damper wear or failure. The spring-bearing construction includes an integrated spring seat, maintaining the correct OE geometry and ensuring proper load transfer through the front suspension.

The B4 series is Bilstein's dedicated OEM replacement line, engineered to match the exact specifications of the factory shock absorber for each application. Unlike generic aftermarket units, the 19-109510 is calibrated specifically for the Audi A4 B6/B7 sports chassis, accounting for the unique valving demands of the sport-tuned suspension setup on these platforms. The gas-charged twin-tube construction prevents aeration and foaming under repeated compression cycles, ensuring consistent and fade-free damping performance in all driving conditions - whether daily commuting, extended highway travel, or spirited driving on winding roads.

Installation is direct and straightforward, as this unit is a drop-in replacement for the OEM damper with no modifications required. It is important to note that this part is specifically designed for vehicles with the sports suspension configuration; A4 B6/B7 models equipped with the standard (comfort) suspension use a different Bilstein part number. Additionally, this shock is not recommended for use with aftermarket lowering springs, as it is calibrated for stock ride height. Two units are required for a complete front axle replacement, and the unit is covered by Bilstein's Limited Lifetime Warranty against manufacturer defects.