Kit 4x4project 2.65 Prerunner Sprinter 906 and 907 3.8-4.5T

Kit 4x4project 2.65 Prerunner Sprinter 906 and 907 3.8-4.5T

Attention! This kit has been developed exclusively for Mercedes Sprinter chassis cab (e.g., Hymer ML-T, Eura Mobil XTura and similar products).

Expedition vehicles weighing between 3.8 and 4.5 tons face critical dynamic challenges. The 4x4project 2.65 Prerunner Sprinter 906 and 907 3.8-4.5T Kit is not just an accessory; it's a complete upgrade designed from the ground up to entirely replace the original suspension. Compatible with W907/VS30 4x4 (2018-on) and 906/NCV3 4x4 (2006-2018) models , it brings high-performance motorsport technology to the heaviest chassis on the market.

True Monotube System on all 4 Wheels

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

• 60mm pistons: Located in 2.65″ bodies, they offer massive oscillation control, vital for slowing down the inertia of a heavy motorhome.

• Chassis Reinforcements: The kit includes specific structural reinforcements that allow a bolt-on installation , providing the necessary rigidity for the new shock absorber to work precisely.

Self-adjusting Digressive Valve

Thanks to their dual-piston technology , the shock absorbers adapt instantly to the load and terrain:

• Comfort on the road: Maintains a smooth and refined filtering on the highway.

• Control in maneuvers: When increasing speed or facing crosswinds, the shock absorber automatically gains firmness to stabilize the vehicle and avoid suspension bottoming out.

Exclusive Rear Coilover Option

The design allows for the installation of a coilover support spring on the rear axle.

• Load compensation: Its wide preload range allows for perfect leveling of the rear height, compensating for the weight of loaded garages, large capacity tanks or heavy habitable structures.

CCV Valves (Hydraulic Accelerometer)

This piston, fixed in the separate bottle, manages the pressure according to the speed of the impact:

• Anti-Cavitation: Multiplies resistance to thermal fade by up to 60% , guaranteeing consistent performance on long runs.

• Supreme Protection: Acts as a hydraulic stop against large impacts, protecting the chassis structure 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) , designed to withstand extreme lateral stresses.

• Oversized FK Ball Joints: We equip with premium FK ball joints that support radial loads up to 39,000 lbs , with PTFE (Teflon) track to eliminate noise and rattling.

Technical Specifications Table

Customization and Maintenance

This system is 100% detachable and repairable , and also allows for the addition of:

• Saline Environments: Option of stainless steel ball joints and anti-corrosion ceramic treatment (ideal for coastal or winter routes).

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

• Custom-made: Hoses and fittings customizable according to the bodywork.

Dramatically improve the safety and performance of your heavy-duty Mercedes Sprinter with the engineering guarantee of 4x4proyect design.

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