Setting the benchmark for van performance
www.4x4proyect.com is proud to introduce the first high performance suspension system for Mercedes Sprinter vans. Our 2.65 Prerunner kit will not only guarantee comfort and traction on any terrain but also gove you much needed stability and load handling capacity when you need it most. This kit, unlike any other, has been designed as a full replacement and upgrade solution. Instead of adding additional components it replaces your existing suspension as a whole for an ultimate solution.
The 4PD-MBSW90713K-MM shock kit fits the Mercedes Sprinter 2019-on W907 / VS30 4x4 and 2006 - 2018 907 / NCV3 4x4 models and consists of 4 2.65" Prerunner shocks equipped with racing technology and exclusively developed by 4x4 proyect design to give you the best handling in any situation. The rear frame reinforcement brackets give your van the strength it needs and allow the installation of additional coilover support springs where required. The brackets install as a bolt on. The kit is designed for lift heights from 0"-2" and the shocks come standard with self-adjusting digressive valving that adapts to any terrain while maintaining full control and stability. All necessary mounting hardware is included making this kit easy to install with common tools.
Some of the 4x4proyect 2.65" Prerunner shocks features are:
Self adjusting: Thanks to their dual piston technology our 2.65 Prerunner shocks are vitrtually self-adjusting. They remain comfortable while cruising around and keep tightening up the more you beat on them to give you the performance and bottom out control you need when pushing the limits.
Coilover option: The rear shock allows for installation of an additional coliver helper spring. The broad adjustment range will allow to finetun your rideheight even when heavily loaded.
True monotube performance: The first shock system to bring monotube racing technology to the front and rear axles of a van. Large 60mm pistons with 2.65" bodies all around as well as oversized racing reservoirs on all four corners guarantee fade free performance even under the harshest conditions.
Oversized bearings: Many of our customers have complained about their shock's bearings not being up to the task of handling the forces they put them through. To solve this problem once and for all we have designed our Prerunner shocks to accept a size 12 bearing, the biggest in its class, supporting up to 78.000lbs of load and increasing its service life up to 150% when compared to the competition. As if that wasn't enough we only use premium quality bearings from the best manufacturer on the market, FK Rod Ends. For extreme or salty environments optional stainless steel bearings are available. All our FK bearings include PTFE liners so they will handle the hardest tasks without squeaking or rattling.
CCV Valves: This revolutionary and exclusive fixed piston sits on top of the external reservoir acting as a accelerometer-decelerometer. The CCV is designed to exponentially increase the internal pressure on the shock oil as the velocity of the shaft stroke increases. By virtually eliminating the possibility of shock fade due to cavitation, the shock is able to withstand extreme working conditions, even racing environments, while maintaining full comfort on any terrain. Last but not least the CCV valve delivers excellent bottom out protection on rough grounds and hard impacts.
Ultra hard piston rod: The choice of the massive 22mm and 28mm piston rods for our 2.65 Prerunner shocks was based on multiple tests, many of them destructive. The final result is a rod with a hard chrome surface like no other covering a heavy duty induction hardening treatment of up to 3mm. This gives the rod a hardness of 61 to 63 on the rockwell scale. That is much more than any piston rod will ever need, but its better to be safe than sorry. As a matter of fact these same rods are used on racing series bypass shocks in race series such as the Baja.
High Capacity External Reservoir: Common belief is that big external reservoirs are used only to fit more oil and thus cool better. While this approach is not entirely wrong the most important task of a big reservoir is to increase the nitrogen capacity. Reason being is that as the rod enters the shock on a compression stroke it displaces a volume of oil equivalent to the portion of rod entering the shock. As oil is incompressible it is the nitrogen that has to accomodate for this change by compressing. Therefore, the larger the nitrogen volume the lesser counterpressure it will generate on compression thus making the shockabsorber smoother and more stable. Since, according to thermodynamics, large pressure changes result in big temperature changes, reducing those pressure changes will reduce the shock's working temperature and increase its resistance to fading. Therefore the best solution to increasing a shocks's performance is to fit a high capacity reservoir with an extra-large nitrogen chamber.
Redundant Nitrogen Fill Port Safety Cap: To protect the fill port we fit an additional sealed billet aluminium safety cap over it. This redundant cap keeps nitrogen in the shock even in the event of a failure of the primary Schrader valve. On top of that the machined thread on cap provides excellent protection against flying stones and debris for the Schrader valve itself..
