Suspension and Components› Suspension Kits

Super Springs

SUMOSPRINGS PROGRESSIVE COMPRESSION W/FULL MEMORYREAR SUSPENSION ENHANCER

$310.99

SKU: S02N SSR-313-47

In Stock
In Stock
Ships by Sep 14
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

Enhance your vehicle's suspension with advanced micro-cellular urethane technology. The Super Springs SumoSprings Helper Spring Kit is designed to improve your vehicle's suspension performance. Constructed from patented micro-cellular urethane, these springs provide a progressive spring rate that offers a soft initial engagement, gradually increasing resistance as weight is added. This unique design helps to reduce rear-end sag, stabilize sway, and soften harsh rebounds, ensuring a smoother ride without compromising the factory feel when unloaded. With a load capacity of 1500 pounds at 50 percent compression, these air springs enhance load carrying ability while requiring no maintenance. The one-piece unit is easily attached on one side, serving as a replacement or upgrade to factory bump stops. The SumoSprings compress up to 80 percent of their original height and feature full memory rebound, making them a reliable choice for improving overall driver control and ride comfort. This kit includes all necessary mounting hardware and is designed for frame mount installation. The SumoSprings are a practical solution for those looking to enhance their vehicle's suspension system, providing stability and support when needed.
Show original supplier description
SUMOSPRINGS PROGRESSIVE COMPRESSION W/FULL MEMORYREAR SUSPENSION ENHANCER

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSuper Springs
Part NumberS02N SSR-313-47

Videos

Amazing Promaster Suspension Upgrade! - Part 3: SuperSprings Installation on Max'd out 3500 #vanlife

Amazing Promaster Suspension Upgrade! - Part 3: SuperSprings Installation on Max'd out 3500 #vanlife
Amazing Promaster Suspension Upgrade! - Part 1: Super Springs Helper Spring Installation #vanlife

Amazing Promaster Suspension Upgrade! - Part 1: Super Springs Helper Spring Installation #vanlife

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy