Recommended Suspension Enhancement For 2021 Dynamax Motorhome On Mercedes-Benz Sprinter 3500 Chassis

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Question:

I have a 2021 Dynamax Isata 3 24FWM motor home on a 2019 Mercedes Benz 3500 chassis. It has a Helwig rear sway bar and Bilstien shocks. I normally load to capacity 11,030 pounds and tow a 3200 pound car. Which Sumo springs do you recommend for the Motorhome in this configuration?

asked by: C. C

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Expert Reply:

For your 2021 Dynamax Isata 3 24FWM motorhome built on the 2019 Mercedes-Benz Sprinter 3500 chassis I recommend the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-338-54 which have a 1400lb load capacity which will do great at supporting the rear suspension while you are towing your 3200lb car, but will not negatively affect the ride quality when you are loaded lighter.

If you would also like to add suspension enhancement for the front axle to prevent sway and further increase your driving experience I recommend the SumoSprings Solo Custom Helper Springs - Front Axle # SSF-106-47.

I included videos for both of the products mentioned for you to take a look at.

expert reply by: Samuel C

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Answer 1

The factory bump stops on your RV built on a 2015 Mercedes Sprinter 3500 chassis will have to be cut off and the captured part pushed out in order to install Timbren rear helper springs #TMBRSP35B. There really isn't any other way based on your…

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Answer 2

I recommend using the SuperSprings SumoSprings for your 2019 Mercedes-Benz Sprinter 3500. These are a one-time installation that you never have to worry about checking up on and they provide more support (become more rigid) as you load more things…

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Answer 3

I have a great option to add helper springs to your 2015 Leisure Travel Van Unity built on the Mercedes Sprinter 3500 chassis. Since this is considered a motor home I recommend Timbren Rear Suspension Enhancement System Item #TMBRSP35A. The…

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Answer 4

It's a very common misconception that suspension products like the SumoSprings, air bags, or Timbrens #TMBRSP35A will increase the capacity of a vehicle or RV. Nothing will increase the load capacity since there are numerous other factors that…

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Answer 5

I recommend using the SumoSprings Solo Custom Helper Springs - Rear Axle #SSR-338-54, which will replace your factory bump stops and help support a heavy load to level your ride and minimize sway. These are a no-drill installation, so they're a…

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Answer 6

For your 2012 Winnebago 24M on Mercedes Benz Sprinter 3500 chassis, I recommend the Timbren system consisting of the Timbren Rear Suspension Enhancement System #TMBRSP35A and #TMBFSP35. Timbren is a stiffer support spring than the SumoSprings, so you…

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Answer 7

Since your main focus is sway reduction, I recommend the SuperSprings Custom Suspension Stabilizer and Sway Control Kit #SS62KV for your 2020 Thor Compass. These work like sway bars and will help reduce sway by up to 30 percent. The #SSR-338-54 would…

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Answer 8

I reached out to SuperSprings and they confirmed that the SumoSprings Solo Custom Helper Springs #SSR-338-54 are the correct fit for your 2020 Mercedes-Benz Sprinter 3500XD.

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Answer 9

So while we do have an option for your 2020 Mercedes-Benz Sprinter 3500 motorhome with 2WD that is sagging in the rear and rocking from side to side, I checked with Roadmaster Active Suspension, and they do not make a kit for this, and there…

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Answer 10

I spoke with my contact at Timbren and the overall height (with spacers) for the part #TMBRSP35B that you referenced is 6-3/8 inch, the height of the #TMBRSP35A is 5-7/8 inch, and the #TMBRSP25A is 5-3/8 inch.

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Answer 11

The Roadmaster Rear Anti-Sway Bar part #RM-1209-120 (Cutaway Models) will preform better than the factory rear anti-sway bar on your 2019 Mercedes-Benz Sprinter 3500 because it is thicker (1-3/8") which means it will be stronger therefore…

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Answer 12

The best suspension improvement we can recommend for your 2022 Dynamax Isata 2 is going to be with an aftermarket rear sway bar like the Roadmaster part #RM-1209-131 which will make a huge improvement in handling and stability while also reducing…

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Recommended Suspension Enhancement For 2021 Dynamax Motorhome On Mercedes-Benz Sprinter 3500 Chassis

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