Bilstein 19-317540 Suspension Shock Absorber - Rear

Bilstein B4 OE Replacement Shock Absorber Overview

The Bilstein shock absorber 19-317540 is engineered for Mini Cooper vehicles requiring reliable suspension performance. Designed as a direct OE replacement, this shock absorber restores original ride comfort and handling characteristics.

• Collapsed length: 15.45 inches (392.5 mm)
• Extended length: 23.01 inches (584.5 mm)
• Internal design: Twintube
• Finish: Durable black paint
• Lower mount type: Eye 14.5mm
• Upper mount type: Stem
• Boot and spring seat not included

About the B4 OE Replacement Product Line

The Bilstein B4 OE Replacement series is designed to meet original equipment specifications for shock absorbers. This product line focuses on restoring the suspension system to factory performance levels, ensuring compatibility and durability. The 19-317540 shock absorber maintains the same fitment and function as the original part installed on Mini Cooper models.

Detailed Product Description

This Bilstein shock absorber features a twintube internal design that provides consistent damping and improved ride quality. The black painted finish offers corrosion resistance for extended service life. With a collapsed length of 15.45 inches and an extended length of 23.01 inches, it fits precisely within the Mini Cooper suspension geometry. The lower mount uses a 14.5mm eye, while the upper mount is a stem type, matching the original mounting points for straightforward replacement.

Common Applications and Problem Solving

• Restores original ride comfort and handling on Mini Cooper vehicles
• Replaces worn or leaking shock absorbers causing poor damping
• Eliminates excessive body roll and instability during cornering
• Addresses uneven tire wear related to suspension issues
• Improves vehicle control and braking response

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before removing the old shock absorber. Verify the upper stem and lower eye mount types match the original equipment. Since this part does not include a boot or spring seat, reuse the existing components if they are in good condition or replace separately as needed. Torque all mounting hardware to manufacturer specifications for safe operation.

Quality Assurance

Bilstein shock absorbers undergo rigorous testing to meet OE standards for durability and performance. The B4 OE Replacement line is manufactured to strict quality controls to ensure consistent fit and function. Warranty coverage details should be confirmed with the supplier or manufacturer.