Direct: (503) 987-4002
Main: (503) 987-4000





One of the most versatile and widely used van chassis on the road, the Mercedes-Benz Sprinter 3500 serves a wide range of industries—from adventure builds and RV conversions to commercial and service applications. While capable, the factory rear leaf springs are designed primarily for heavy load capacity, often resulting in a harsh ride when unloaded or lightly loaded.
To solve this, Kelderman introduces their legendary 2-Stage Rear Air Suspension System for the Sprinter 3500 chassis from Mercedes-Benz and Freightliner.
This system utilizes Kelderman’s unique 2-Stage Rear Air Suspension Framework, which mounts to the rear leaf spring shackle to add usable suspension travel while maintaining load-carrying capability. By allowing the air suspension to absorb road impacts before the stiff factory leaf springs engage, ride quality is dramatically improved.
The result is a smoother, more controlled driving experience—whether cruising highways, navigating rough roads, or carrying variable loads. With 3–4 inches of additional rear suspension travel, this system delivers comfort and stability the stock chassis simply cannot provide.
Proven over more than 25 years of production, Kelderman’s 2-Stage design is a trusted solution for Sprinter owners looking to enhance ride quality without sacrificing reliability or payload performance.
This kit is compatible only with Sprinter 3500 dual rear wheel (DRW), long-wheelbase (170″) models.
Exhaust modification is required.
Please contact our shop to inquire about installation options and shipping details prior to ordering.
We ship nationwide and internationally. Most in-stock items leave our shop within 1–3 business days. Made-to-order and oversized parts may require additional lead time; any special timing will be noted on the product page.
If an order is placed outside of our normal business hours (Monday–Friday), we will process it as soon as possible once our team is back in the shop during regular operating hours. Weekend orders will be handled the next business day.
We want you stoked on your gear. Eligible items may be returned within 30 days of delivery for a refund or exchange.
Many products include a manufacturer warranty. We’re happy to help facilitate claims—reach out with your order number, photos, and a description of the issue.
Questions about shipping or returns? Get in touch—our team is here to help you get trail-ready.
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