REF: 012.CSS-1094
COIL SUMOSPRINGS 23.9mm
Coil SumoSprings® work with your existing coil spring to add a progressive spring rate. They provide real support, help the coil recover faster, and reduce stress on the suspension. The result is better ride control, smoother handling, less sway, and a suspension system that lasts longer. They install by simply being slid between the turns of the coil spring.
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Coil SumoSprings® improve the load leveling ability of original equipment front and rear coil springs. Built from our proprietary microcellular polyurethane, Coil SumoSprings compress under load to deliver real spring support without affecting ride comfort. They install between the coils with no cutting, no drilling, and no air plumbing. As your suspension flexes, they compress progressively — enhancing capacity and ride comfort , absorbing shock, reducing sway, and helping the vehicle stay level and predictable.
- Progressive Load Support - Adds real spring support under load — helps maintain ride height, even when carrying cargo or passengers.
- Reduces Bottoming Out - Cushions hard impacts before they reach the chassis, reducing harsh hits over speed bumps and dips.
- Installs Inside Coil - Slides between your existing coil spring winds — no spacers, no air systems, no lift compromise.
- All-Weather Performance - Closed-cell polyurethane resists heat, cold, and road chemicals — year-round durability you can trust.
A SMARTER UPGRADE THAN COIL SPACERS
Coil spacers are often used to lift vehicles under load, but they don’t actually add any real spring capacity — they simply raise the ride height. That leaves the factory coil spring to do all the work, often resulting in poor handling, harsh bottoming out, and premature fatigue.
Coil SumoSprings, by contrast, work with your existing coil spring to add a progressive spring rate. They compress under load to provide real support, help the coil recover faster, and reduce stress on the suspension. The result is better ride control, smoother handling, less sway, and a suspension system that lasts longer — all without the drawbacks of traditional spacers or air systems.
TOUGH FROM THE INSIDE OUT
Coil SumoSprings are made from the same durable, closed-cell polyurethane found across the SumoSprings line — resistant to corrosion, cracking, and road grime. They thrive in heat, cold, and repeated suspension cycles, providing worry-free performance with zero upkeep. With no moving parts and no metal-to-metal contact, they hold up through years of towing, hauling, and off-road abuse.
BUILT FOR LOADED VEHICLES AND REAL-WORLD DRIVING
Coil SumoSprings are ideal for vehicles that frequently carry passengers, cargo, or equipment that push factory coils to their limits. From passenger vehicles with full back seats to vans filled with tools, these upgrades add the stability, height retention, and ride quality that spacers and stock setups just can’t match.
They’re especially effective for SUVs carrying rooftop tents or camping gear, light trucks with mounted equipment, and off-road builds that demand smoother trail performance without sacrificing travel. Once installed, Coil SumoSprings require no adjustment or upkeep — they’re the set-it-and-forget-it upgrade that transforms your suspension for the long haul.
Coil SumoSprings® improve the load leveling ability of original equipment front and rear coil springs. Built from our proprietary microcellular polyurethane, Coil SumoSprings compress under load to deliver real spring support without affecting ride comfort. They install between the coils with no cutting, no drilling, and no air plumbing. As your suspension flexes, they compress progressively — enhancing capacity and ride comfort , absorbing shock, reducing sway, and helping the vehicle stay level and predictable.
- Progressive Load Support - Adds real spring support under load — helps maintain ride height, even when carrying cargo or passengers.
- Reduces Bottoming Out - Cushions hard impacts before they reach the chassis, reducing harsh hits over speed bumps and dips.
- Installs Inside Coil - Slides between your existing coil spring winds — no spacers, no air systems, no lift compromise.
- All-Weather Performance - Closed-cell polyurethane resists heat, cold, and road chemicals — year-round durability you can trust.
A SMARTER UPGRADE THAN COIL SPACERS
Coil spacers are often used to lift vehicles under load, but they don’t actually add any real spring capacity — they simply raise the ride height. That leaves the factory coil spring to do all the work, often resulting in poor handling, harsh bottoming out, and premature fatigue.
Coil SumoSprings, by contrast, work with your existing coil spring to add a progressive spring rate. They compress under load to provide real support, help the coil recover faster, and reduce stress on the suspension. The result is better ride control, smoother handling, less sway, and a suspension system that lasts longer — all without the drawbacks of traditional spacers or air systems.
TOUGH FROM THE INSIDE OUT
Coil SumoSprings are made from the same durable, closed-cell polyurethane found across the SumoSprings line — resistant to corrosion, cracking, and road grime. They thrive in heat, cold, and repeated suspension cycles, providing worry-free performance with zero upkeep. With no moving parts and no metal-to-metal contact, they hold up through years of towing, hauling, and off-road abuse.
BUILT FOR LOADED VEHICLES AND REAL-WORLD DRIVING
Coil SumoSprings are ideal for vehicles that frequently carry passengers, cargo, or equipment that push factory coils to their limits. From passenger vehicles with full back seats to vans filled with tools, these upgrades add the stability, height retention, and ride quality that spacers and stock setups just can’t match.
They’re especially effective for SUVs carrying rooftop tents or camping gear, light trucks with mounted equipment, and off-road builds that demand smoother trail performance without sacrificing travel. Once installed, Coil SumoSprings require no adjustment or upkeep — they’re the set-it-and-forget-it upgrade that transforms your suspension for the long haul.
