SuperSprings Air Suspension Helper Spring P/N:SSR-128-47-2

Carry heavy loads with more confidence using the SuperSprings SumoSprings Air Suspension Helper Spring SSR-128-47-2, a rear helper spring designed to enhance load-carrying ability, stabilize sway, and improve overall driver control and comfort. It fits the 2017-2025 Ford F-250 Super Duty and 2017-2025 Ford F-350 Super Duty — see the Buyer's Guide tab for engine-level details.

SumoSprings are a patented suspension product molded from proprietary closed microcellular urethane and built in a variety of heights, diameters, and densities to suit multiple front and rear applications. Unlike conventional air bags, they require no airlines or compressors and are marketed as the world's only leak-proof air spring.

• Load support: 4,600 lbs capacity at 50 percent compression — never load any vehicle beyond the manufacturer's GVWR.
• Progressive spring rate: reduces and stabilizes sway while improving ride comfort.
• Full memory rebound: compresses up to 80% of original height and stretches 50% of its body height.
• Maintenance-free: requires no maintenance and does not leak air.

Sold as a pair, left and right. Proudly made in the U.S.A.