5125 Universal Road Shock - for 11-12" Travel Stem to Eyelet - (Single)

Features:

• Supports 11-12" travel stem to eyelet 
• Monotube gas pressure construction
  
• Self-adjusting deflecting disc valving
• High-flow piston enhances ride comfort
• Independent rebound and compression control
• Larger piston area for precise damping
• Handles large tires with improved stability
• Designed for custom suspension applications
• Fade-free performance under tough conditions
• Built for off-road and daily use

Ready for More Than Just the Pavement

If you’re building a rig that’s meant to do more than cruise the streets, the Bilstein 33-230429 5125 Series shock should be on your radar. With 11-12" inches of travel, it’s a great fit for custom lifted trucks that need a shock built to handle serious terrain without sacrificing everyday drivability. This model is built around Bilstein’s trusted monotube gas pressure technology, a design known for keeping damping performance consistent under stress. Whether you’re crawling through rocky trails or chasing dust across open desert, it holds its composure and keeps your suspension working the way it should.

Smooth Control with a Durable Edge

Performance aside, what really stands out with this shock is how well it manages changing terrain. The self-adjusting deflecting disc valving means the shock can react in real time to bumps, ruts, and washboard roads without sending all that harshness through the chassis. A high-flow piston design helps keep things smooth by improving oil movement inside the shock, which also helps with heat dissipation and longevity. Add in independent tuning for rebound and compression, and you’ve got a setup that feels more controlled and more planted, especially with oversized tires or added gear weight. Since it’s sold by travel length, this shock gives you more flexibility when fine-tuning your build, whether you're piecing together a capable trail truck or upgrading a long-time project.

Fits: Universal

Notes:

• Universal shock for custom applications. Verify measurements before ordering.
• Designed for vehicles without a direct Bilstein fitment.
• Confirm your suspension uses a stem upper mount and 5/8 inch eye lower mount.
• Check collapsed and extended lengths to prevent binding or overtravel.
• Sold individually. Order two for a complete axle replacement.
• Firm factory valving is non-adjustable.
• Includes standard 5/8 inch hourglass bushings and a black bellows boot.
• No reservoir or spring seat is included.
• Replacement mounting kit is Bilstein part number B4-KT1-Z103A02.
• Fits by shock dimensions, not by vehicle application.
• Designed for custom suspension builders and lifted truck applications.
• Covered by Bilstein's 90-day manufacturer warranty against defects.
• Product images may be representative.

Install Instructions