Improve the stability, handling, and load-carrying confidence of your Mercedes Sprinter 3500 with the Timbren SES Suspension Enhancement System Rear Kit. Designed specifically for commercial vans, work vehicles, RV conversions, and overland camper builds, this heavy-duty rear suspension upgrade helps eliminate rear sag, excessive sway, and unstable body roll caused by heavy cargo, towing, and fully loaded travel setups.
Whether you use your Sprinter for deliveries, contractor work, fleet service, camper van adventures, or overlanding, the Timbren SES rear suspension system delivers a safer, more controlled driving experience without sacrificing ride quality. Featuring Timbren’s patented Aeon rubber spring technology, this maintenance-free suspension enhancement system provides immediate load support through a preload design that stays engaged with the frame at all times. It’s a smart suspension upgrade built for van owners who demand reliability, comfort, and improved vehicle control under load.
Key Features
- Reduces Sag, Sway & Body Roll – Helps stabilize heavy cargo and improve overall handling for safer driving and improved ride control
- Preloaded Aeon Rubber Springs – Always engaged with the frame for immediate suspension support and faster response under load
- Maintenance-Free Suspension Upgrade – No compressors, air lines, gauges, or post-installation adjustments required
- Quick DIY Installation – Bolt-on installation can typically be completed in under 30 minutes using basic hand tools
Features & Benefits
Heavy cargo, camper conversions, towing setups, and commercial equipment can place tremendous stress on your Sprinter’s rear suspension system. Excessive squat, body roll, unstable cornering, and rear-end sag not only create an uncomfortable ride but can also negatively affect steering response, braking performance, and overall driving safety. The Timbren SES Suspension Enhancement System is engineered to provide additional rear suspension support exactly when your Mercedes Sprinter 3500 needs it most.
At the core of the system are Timbren’s patented Aeon hollow rubber springs. Unlike traditional overload springs or air bag systems, Aeon springs utilize a progressive spring rate that automatically adapts to changing load conditions. As weight increases, the rubber springs progressively stiffen and push back harder to reduce squat, sway, suspension compression, and body roll.
What makes this Sprinter-specific system unique is its engineered preload design. Unlike traditional SES systems that maintain a small gap between the spring and frame during unloaded driving, the MBRSP35C2 kit is designed so the Aeon springs remain in constant contact with the vehicle frame. This preload setup allows the suspension support system to engage immediately as weight shifts or additional load is applied, delivering more stable handling and improved control even before the van reaches maximum payload capacity.
The Aeon springs also act as secondary shock absorbers, helping absorb harsh road impacts and smooth out rough terrain for improved ride comfort both loaded and unloaded. This makes the system ideal for commercial delivery vans, RV conversions, mobile work vehicles, overland camper builds, and fleet applications.
Unlike air suspension systems that require compressors, airlines, gauges, and routine maintenance, the Timbren SES system is completely maintenance-free once installed. There are no leaks to monitor, no pressure settings to adjust, and no complicated electronics involved. Once installed, the system works automatically every time your van is loaded or towing.
Precision-engineered specifically for Mercedes Sprinter 3500 models, this rear suspension enhancement system provides dependable support for both heavy-duty work applications and long-distance adventure travel.
Vehicle Fitment
Compatible Vehicles:
- 2007–2026 Mercedes Sprinter 3500 2WD
- 2007–2026 Mercedes Sprinter 3500 4WD
- 2019–2026 Mercedes Sprinter 3500 AWD
Suspension Support Location: Rear Suspension
Installation Information
The Timbren SES Rear Kit is designed for quick and straightforward installation using factory mounting locations.
Installation Features:
- Bolt-on installation
- No drilling or fabrication required
- DIY-friendly installation process
- Designed for driveway installation
Estimated Installation Time: Under 30 minutes in most applications
Tools Recommended:
- Basic hand tools
- Ratchet and socket set
- Torque wrench recommended
- Vehicle jack or lift recommended
Additional Installation Notes:
- Preload design keeps the Aeon springs engaged with the frame at all times
- No post-installation adjustments or maintenance required
- Designed specifically for rear suspension applications only
Rated Capacity: 7,000 lbs
Important: Installing a suspension enhancement system does not increase the vehicle’s factory GVWR (Gross Vehicle Weight Rating). Always follow the manufacturer’s specified weight capacities and loading guidelines.
What’s Included
- 2 × Frame mounts
- 2 × Patented Aeon SES hollow rubber springs
- 4 × Spacers
- 2 × Axle brackets
- Installation hardware
Care & Maintenance
The Timbren SES system is engineered for long-term durability with virtually no maintenance required.
Recommended Maintenance:
- Periodically inspect mounting hardware for tightness
- Check rubber springs during routine vehicle inspections for wear or damage
- Clean components using mild soap and water as needed
- Avoid petroleum-based cleaners or harsh chemicals on rubber components
Because the system contains no compressors, airlines, or moving mechanical parts, long-term upkeep is minimal.
Warranty Details
Timbren SES Suspension Enhancement Systems are backed by a Lifetime Warranty covering defects in materials and workmanship under normal use and service for the life of the vehicle on which the kit was originally installed.
Warranty Coverage Includes:
- Defects in materials
- Defects in workmanship
- Replacement of failed components under normal operating conditions
Warranty Exclusions Include:
- Improper installation
- Vehicle overloading beyond manufacturer specifications
- Abuse, misuse, modifications, or neglect
- Damage caused by accidents or external sources
Proof of purchase may be required for warranty claims.
Terms to Know
- Aeon Rubber Springs: Patented hollow rubber suspension springs designed to provide progressive load support and improved ride stability.
- Progressive Spring Rate: A suspension characteristic where spring resistance increases automatically as additional weight or pressure is applied.
- SES (Suspension Enhancement System): An aftermarket suspension upgrade designed to improve vehicle stability, load support, and ride quality while towing or hauling.
- Preload Design: A suspension setup where the support spring remains engaged with the frame at all times for immediate load response.
- GVWR (Gross Vehicle Weight Rating): The maximum allowable total vehicle weight specified by the manufacturer, including passengers, cargo, and trailer tongue weight.
Whether you’re building the ultimate camper van, hauling commercial cargo, or upgrading your fleet vehicle for demanding workloads, the Timbren SES Suspension Enhancement System Rear Kit delivers the stability, comfort, and maintenance-free performance your Mercedes Sprinter 3500 needs. Engineered for real-world hauling and adventure applications, it’s one of the smartest suspension upgrades available for improving ride control, load handling, and overall driving confidence.