Fox 2.5 Factory Race Series Internal Bypass Rear Shocks (Pair) for 2019+ Sprinter 2500

Race-Proven Internal Bypass Control for Sprinter 2500 Rear Suspension

Fox 2.5 FRS Internal Bypass Rear Shocks for 2019+ Mercedes Sprinter 2500

Fox’s Factory Race Series 2.5 Internal Bypass Rear Shocks bring race-proven damping technology to your 2019+ Sprinter. With internal bypass channels, piggyback reservoirs, and DSC EVO adjustability, these shocks deliver the ultimate in rear-end control, comfort, and durability.

The Fox 2.5 Factory Race Series Internal Bypass Rear Shocks are designed to transform the way your Sprinter performs under load, over rough roads, and across technical off-road terrain. Unlike standard monotube shocks, these feature internal bypass valving, which allows variable damping through different stages of travel; soft and compliant on small chatter, progressively firmer when the suspension compresses deeper.

A high-volume piggyback reservoir increases oil capacity for consistent cooling, while Fox’s DSC EVO adjuster provides independent tuning of high- and low-speed compression. Built with a 2.5″ hard-anodized aluminum body, these shocks resist corrosion and dissipate heat for fade-free performance mile after mile. With Sprinter-specific valving, they’re engineered to deliver a premium driving experience both on-road and off.

 

Internal bypass delivers more controlled ride quality

Fade-resistant damping under heavy load

On-the-fly compression adjustability for varied terrain

Tuned for Sprinter 2500 chassis dynamics and weight

Reliable performance for highway and off-road

 

Internal Bypass for Superior Ride Quality

Factory Race Series bypass valving

With internal bypass channels, these shocks provide progressive damping throughout their travel. The result is a smooth, controlled ride on small bumps and sharp stability when the terrain gets rough, this is race-proven performance, adapted for your Sprinter.

Cooling and Control Under Heavy Loads

Piggyback reservoir with DSC EVO adjuster

The integrated piggyback reservoir expands oil capacity for better cooling, while the DSC EVO adjuster gives you independent high- and low-speed compression tuning. Tailor your rear suspension to highway hauls, washboard trails, or fully loaded overland travel.

Lightweight Strength, Built to Last

2.5″ hard-anodized aluminum body

CNC-machined from 6061-T6 aluminum with a Type III hard anodized finish, these shock bodies resist wear, corrosion, and heat. Built to withstand punishing terrain, they deliver long-lasting durability for both everyday and expedition use.

Sprinter-Specific Engineering

Vehicle-specific geometry and valving

Fox developed these shocks specifically for the Sprinter 2500 platform, with valving and geometry tuned for its unique weight distribution and dynamics. That means less body roll, better rear stability, and the confidence to push further.

 

Specifications

• Fitment: 2019+ Mercedes-Benz Sprinter 2500 (AWD/4WD)
• Body Diameter: 2.5”
• Body Material: CNC-machined 6061-T6 aluminum, TYPE III hard anodized
• Adjustability: DSC EVO (High-/Low-speed compression)
• Reservoir: Piggyback external with VVC
• Damping: Internal bypass with race-inspired tuning
• Quantity: Pair (driver and passenger side)