Bilstein 33-176840 Suspension Shock Absorber - Rear

Overview of Bilstein B6 Rear Shock Absorber 33-176840

The Bilstein B6 suspension shock absorber 33-176840 is engineered for rear suspension applications on select Ford vans. Designed to improve ride quality and handling, this monotube shock absorber is built to meet the demands of Ford E-150, E-250, E-350, and related Econoline models.

• Monotube internal design for consistent damping
• 46mm inner diameter smooth body (non-coilover)
• Blue bellows boot included for shaft protection
• Zinc plated finish for corrosion resistance
• Lower mount: 12mm eye type; Upper mount: stem type
• Rear position shock absorber
• Part number: 33-176840

Bilstein B6 Product Line Details

The B6 series from Bilstein is designed to provide enhanced performance over standard OEM shocks without requiring suspension modifications. This line focuses on monotube technology to deliver improved handling and stability, making it suitable for vehicles like the Ford E-150 and E-350 Econoline vans that require reliable rear suspension components under varying load conditions.

Technical Description and Features

The Bilstein 33-176840 shock absorber features a monotube internal design that offers precise and consistent damping characteristics. Its 46mm inner diameter smooth body is optimized for rear suspension setups that do not use coilover springs. The zinc plated finish helps resist corrosion, extending the service life of the shock. The included blue bellows boot protects the piston shaft from dirt and debris, maintaining smooth operation. Mounting is facilitated by a 12mm eye lower mount and a stem upper mount, ensuring compatibility with the rear suspension of Ford E-150, E-250 Econoline, and E-350 Club Wagon models.

Common Applications and Problem Solving

• Restores rear suspension stability on Ford E-150 and E-350 Econoline vans
• Reduces excessive bouncing and body roll under load
• Improves handling and ride comfort on uneven road surfaces
• Addresses worn or leaking OEM rear shocks
• Enhances control during braking and cornering

Installation Notes and Tips

When installing the Bilstein 33-176840 rear shock absorber, ensure the vehicle is securely lifted and supported. Verify the orientation of the eye and stem mounts to match the original equipment. Inspect mounting hardware and suspension components for wear or damage before installation. The included blue bellows boot should be positioned correctly to protect the piston shaft. No reservoir is included with this shock absorber, simplifying installation.

Quality Assurance and Warranty

Bilstein manufactures the B6 series shock absorbers to meet strict quality standards, ensuring durability and consistent performance. The zinc plated finish and robust monotube design contribute to long service life. Warranty details are provided by Bilstein and typically cover defects in materials and workmanship under normal use conditions.