Upgrade your Class A motorhomes suspension with the SumoSprings Front & Rear Kit for Ford F53 16Kâ18K chassis. Designed specifically for Ford F53 4x2 motorhome platforms, this complete combo kit delivers improved load support, reduced sway, and enhanced ride comfort without the complexity of air systems. SumoSprings are a patented suspension enhancement made from proprietary closed micro-cellular urethane. They provide a smooth, progressive spring rate that engages only when needed, improving stability and control while maintaining ride quality. Unlike air bags, SumoSprings are maintenance-free, never leak, and require no compressors or airlines. Each kit is handcrafted, making every SumoSpring unique, with natural variations that reflect its premium craftsmanship. This perfectly paired front and rear combo includes front kit SSF-170-40-2 and rear kit SSR-184-40-1, ensuring balanced performance and confidence on the road. Ideal for popular motorhome brands like Coachmen, Jayco, Holiday Rambler, Tiffin, and Winnebago, this suspension upgrade is built to handle real-world RV demands. Feature List:• Custom fit for Ford F53 4x2 chassis (2011â2025)• Supports 16Kâ18K GVWR motorhomes• Includes matched front and rear SumoSpring kits• Progressive spring rate for smooth engagement• Closed micro-cellular urethane construction• Maintenance-free, no air lines or compressors• Handcrafted for consistent, high-quality performance• 6, 000 lb load support capacityAdditional Info: Weight: 67 lbsDimensions: 25 x 19 x 10 inApplication(s) Summary: Ford F53 4 X 2 (2011-2025); 16k-18k / Coachmen; Jayco; Holiday Rambler; Tiffin; WinnebagoCapacity: 6000 (lbs) Enhances ride comfort on rough roads No maintenance or air system failures Boosts driver confidence & vehicle control | Supersprings International Inc SumoSprings Front & Rear Kit, 16-18K Ford F53 4 X 2 (2011-2025) - K-10-003