Bilstein B8 8100 ZoneControl R DSA Shock Absorber

2019–2026 Ram 2500 6.7L Diesel / 6.4L 392

Part #: 25-302240

Overview

The Bilstein B8 8100 ZoneControl R DSA shock absorber is engineered specifically for lifted trucks and SUVs, providing a direct-fit, high-performance suspension upgrade for the front left position on Ram 2500 models from 2019 through 2026 equipped with either the 6.7L Diesel or 6.4L 392 engines. Designed to enhance ride quality and vehicle control, this shock absorber features advanced adjustability and innovative damping technology to deliver superior comfort and handling across a wide range of driving conditions.

Ideal for enthusiasts who demand both off-road capability and on-road refinement, the B8 8100 offers precise tuning options that allow you to customize your suspension response to match your driving style and terrain. Whether navigating rough trails or cruising highways, this shock absorber maintains consistent performance and reduces harsh suspension impacts.

Key Features

The Bilstein B8 8100 ZoneControl R DSA shock absorber incorporates cutting-edge technology and robust construction to optimize suspension performance. Key features include:

• Adjustable Dual Speed Adjustment (DSA) with click adjuster knobs for independent low and high speed compression tuning
• ZoneControl R double piston technology providing position-sensitive rebound damping to eliminate harsh top-out events without the need for external limit straps
• Large 60mm (2.65") monotube piston design for enhanced comfort and control
• Velocity sensitive digressive valve settings precisely tuned for Ram 2500 applications
• Remote or piggyback reservoir options for efficient heat dissipation and consistent fade-free performance
• Direct fit installation tailored for lifted Ram 2500 trucks, ensuring hassle-free upgrade
• Durable construction engineered to withstand demanding off-road and heavy-duty use

Construction & Design

Bilstein’s B8 8100 shock absorbers are built with a monotube design that promotes superior heat dissipation and consistent damping under extreme conditions. The large 60mm piston provides a greater surface area for smoother suspension travel and improved ride comfort. The ZoneControl R technology integrates a revolutionary double piston system that adjusts rebound damping based on suspension position, preventing harsh top-out impacts and enhancing overall vehicle stability.

High-quality materials and precision engineering ensure long-lasting durability, even in the toughest environments. The shock’s reservoir design—available in remote or piggyback configurations—helps maintain optimal operating temperatures, reducing fade and preserving performance during extended use.

Installation & Fitment

This Bilstein B8 8100 shock absorber is a direct fit for the front left position on 2019–2026 Ram 2500 trucks equipped with 6.7L Diesel or 6.4L 392 engines. Installation is straightforward with no modifications required, making it an ideal upgrade for lifted trucks seeking enhanced suspension performance. The included hardware and reservoir options facilitate a clean, hassle-free setup that integrates seamlessly with your vehicle’s existing suspension components.

What’s Included

• Bilstein B8 8100 ZoneControl R DSA front left shock absorber
• Remote or piggyback reservoir (application dependent)
• Adjuster knobs for low and high speed compression tuning
• Installation hardware as required for direct fitment

Ideal For

This shock absorber is perfect for Ram 2500 owners who have lifted their trucks and want to improve ride quality, handling, and suspension control both on and off-road. It suits drivers who demand adjustable damping to tailor their suspension to varying terrain and driving conditions, including off-road enthusiasts, heavy-duty users, and those seeking enhanced comfort without sacrificing performance.

Bilstein is a cornerstone name in performance suspension, known for high-quality dampers and suspension systems tuned for everything from street handling to aggressive off-road use. With dedicated Street Performance offerings and motorsport-inspired development, Bilstein shocks and coilovers are built to deliver consistent control, better ride quality, and confidence when you’re pushing the pace—on-road or off.