Leaf Spring Coil Assisters
Leaf Spring Coil Assisters

Mercedes Sprinter & Pre Sprinter              All kits are £375 + P&P or fitting.

Mk1 Sprinter
Mk2 Sprinter
Mk3 Sprinter


Please read everything on this page as it will answer any questions you may have.

Mercedes Sprinters from 1996 to 2018 and Pre Sprinters 308 etc all have the same leaf spring set up. If your Mercedes is  LWB, SWB we have a kit to fit. After some years of having the weight sat over the rear of these vehicles. The leaf springs start to bend the opposite direction to the way they should. Please see video page for photos. For information please visit the "Home & Info" page.


Please note we no longer supply a kit for the Twin wheel Sprinters.

We offer a fitting service here in Cheshire. However if we are too far away from you why not check out our fitting agents list to see if there is a fitter near to you. You will find this list on the "Fitting Agents in the UK" page

This is our own design owned by Custom Campers UK. If your Mercedes motorhome,camper, van or recovery truck suffers from rear end sag. Custom Campers UK have developed an assister that will lift and impove ride. These are a very heavy duty pair of coil springs that fit in between the chassis and axle. They are not like other brands. These will not wear,  break or weaken. We supply this kit as a D.I.Y kit or we can fit them for you. I have the same kit fitted to my Talbot motorhome which are over 3 years old now.

As you can see we use very strong coil springs compared to others. Each coil spring kit is rated at 900kgs, 1100kg or 1400kg depending on your vehicles needs.

The rear of motorhomes,campers  do suffer with all the weight of the equipment on board. The vehicle and leaf springs were never designed to have the constant weight sitting over the rear axle. Please note we only  supply the 900kg kit for the Mk3 Sprinter 2014 > 2017 XLWB .


This is after the Spring assister kit was fitted to my Talbot. As you can see it fits between the axle and the chassis. Note the correct bend in the leaf spring now.

We can also supply Rear shocks for the Sprinter & Pre Sprinter. These are heavy duty gas shocks and are rated at 800kgs.  

Our kits include.

2 x coil spring max load of 1400kgs each.

4 x coil cups

1 x cross member(Talbot/Boxer/Relay/Iveco/Mercedes Sprinter/crafter. only)

Fitting instructions.

Fitting charge £175 Please email to book in

Where to find us:

Custom Campers Uk

Please click on the "contact us" page for our address.


9am to 5pm

07543 058985




After hours           

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leaf spring assister 






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Business hours

9am/5pm Mon-Fri

Sat. Closed

Sunday. Closed


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