Kit 4x4proyect 2.65 Prerunner Sprinter 906 and 907 3.8T

The Mercedes Sprinter is the foundation for some of the world's best camper vans, but its original suspension is often overwhelmed by the weight of 3.8-ton conversions . The 4x4project 2.65 Prerunner Sprinter 906 and 907 3.8T kit has been designed from the ground up, not as an accessory, but as a complete replacement that provides maximum stability, control, and comfort where other systems fall short.

Suitable for W907 / VS30 4×4 (2018-present) and 906 / NCV3 4×4 (2006-2018) , this bolt-on system completely replaces the original damping to offer a definitive solution.

Authentic Monotube Performance

We are the first manufacturer to implement real competition monotube technology on both axles of a Sprinter.

• 2.65″ bodies and 60 mm pistons: A massive volume that guarantees unprecedented absorption capacity.

• Chassis Reinforcements: The kit includes reinforcements that provide the necessary structural rigidity, allowing the new suspension to work with millimeter precision under heavy loads.

Intelligent Digestive Valve

Thanks to its dual-piston technology , the shock absorber adapts to your pace:

• Cruise comfort: A soft tuning for long road trips.

• On-demand firmness: As the pace or terrain becomes more difficult, the shock absorber automatically gains firmness, controlling inertia and preventing suspension bottoming out.

Exclusive Rear Coilover Option

To manage the constant weight of a 3.8T, the rear shock absorber allows the installation of a support coilover spring.

• Precise leveling: Its preload range allows you to adjust the rear height perfectly, compensating for water tanks, equipment or loaded garages.

CCV Valves (Hydraulic Accelerometer)

This fixed piston in the separate bottle manages the oil flow according to the impact speed:

• Fade Resistance: Reduces cavitation and increases thermal resistance by up to 60%.

• Active Protection: Acts as a hydraulic stop against large impacts, protecting both the chassis and the interior furnishings of the home.

Professional Grade Components

• 22 and 28 mm stems: Manufactured with induction hardening and 61-63 Rockwell hardness (HRC) , the same standards used in Baja-type races.

• Oversized FK Ball Joints: We equip top-quality FK ball joints that support up to 39,000 lbs of radial load, eliminating noise thanks to their PTFE (Teflon) track.

Featured Technical Specifications

Feature	Technical Detail
Installation	Direct-fit (Bolt-on) without chassis modifications
Construction	High-quality, 3mm thick steel bottles
Thermal Management	Separate bottle 30% larger for maximum nitrogen capacity
Security	Double nitrogen safety cap and protected Schrader valve
Elevation	Optimized for ranges from 0″ to 2″
Maintenance	100% detachable, repairable and revalvable system

Customization Options

Designed to last, the kit allows you to add extras depending on the travel environment:

• Saline Environments: Option of stainless steel ball joints and anti-corrosion ceramic treatment.

• Extreme Control: 2.5″ external compression stop with three stages of hardness.

• Connections: Custom hoses and fittings according to the bodywork.

Dramatically improve the safety and performance of your Mercedes Sprinter 3.8T with 4x4proyect design engineering.

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