Description

Arnott’s AH-4471 is kit rear helper air spring for the 2006-current Fiat Ducato, 2006-current Citroën Jumper, and 2006-current Peugeot Boxer - that do not come with air suspension as standard. 
The kit contains two air springs that can be mounted on the rear axle of the vehicle to support the additional loading weight, or the vehicle increased weight (e.g. campers). Both springs can be inflated manually, for instance by using the tyre pressure system at a gas station. 
Sidenote: the helper springs can also work as “replacement part” for existing helper springs kits for which the air spring is leaking and needs replacement. 

https://www.youtube.com/watch?v=ySq6bDsEJDw

Vehicles, and especially LCV chassis, are designed to manage a wide range of load conditions which inevitably leads to a compromise. Suspension solutions are developed for average loads, providing the maximum possible comfort when empty and at the same time providing necessary safety when fully loaded. Consequently, the suspension can be too strong, making the ride harsh for an unloaded vehicle. On the other hand, the suspension is too weak for permanently loaded vehicles causing premature wear of the steel suspension and an uncomfortable driving experience. This is especially a challenge for vehicles that have a permanent load like motorhomes. Air helpers offer an adjustable solution to manage cases of more permissible gross weight or an increase in the maximum permissible axle load. The spring reinforcement optimizes the suspension, increasing the safety and usability of the vehicle. Due to not overstressing the suspension, air helper springs eliminate premature wear and tear and improve drivability, increasing the vehicle’s lifespan.

Arnott Helper Air Springs are designed to complement your suspension, preventing it from sagging with increased payload and providing extra stability and increased ride comfort. As for our replacement air springs, all air helper springs are designed and tested in the USA or in the Netherlands and use only the highest quality components. With 35 years of experience in engineering suspension and air springs, the designs are optimized to create an easy-to-install product with fewer pneumatic connections to minimize the risk of leakage.

Benefits:
Prevents rear end sagging
Carry increased weight/payload
Levels unequal weight distribution
Increases ride comfort
Additional stability

Rear Helper Air Spring - Fiat Ducato, Citroën Jumper, Peugeot Boxer can be mounted on the following models: 

Citroën Jumper (X250/290 Chassis) 2006--

Fiat Ducato (X250/290 Chassis) 30L-45H (15/16″) 2006--

Peugeot Boxer (X250/290 Chassis) 2006--

Potential applications:

Motorhomes
Converters/Chassis builders
Transport/Carriers
Builders/Construction workers
Ambulances
Police/ADAC/Service vehicles
Shuttles/busses
Wheelchair accessible vehicles
Off-road