The TRW JCS1486T Rear Coil Spring Set is engineered to restore the original ride quality and handling dynamics of the Toyota Sienna models from 2004 to 2010. Designed to meet or exceed original equipment (OE) specifications, these coil springs ensure optimal performance and durability. Manufactured with high-quality materials, they undergo rigorous testing, including magnetic particle inspection, to guarantee structural integrity and longevity. The powder-coated finish provides enhanced corrosion resistance, extending the lifespan of the springs and maintaining their appearance over time. By maintaining consistent performance under varying load conditions, the TRW JCS1486T coil springs contribute to improved vehicle stability and handling, addressing common issues such as sagging or uneven ride height. This results in a smoother driving experience and reduced maintenance costs for fleet operators. The set includes two rear coil springs, ensuring a balanced and uniform ride across the vehicle. With a 12-month TRW limited warranty from the installation date or an 18-month limited warranty from the delivery date, whichever occurs first, these coil springs offer reliable performance and peace of mind for fleet maintenance.