The Hellwig Pro-Series helper spring for 2017–2020 Sprinter 2500/3500 (2WD/4WD) is designed for multi-leaf applications and supplies up to 2,500 lb of level load capacity via the Silent Support System. Over-axle mounting makes installation straightforward while the tunable setup improves load control without the noise of contact overload springs. Note: it does not fit dually applications; check fitment for specific vehicle year and configuration.
Hellwig 17-20 Sprinter 2500/3500 2/4WD Pro Series Helper Spring - Up To 2500lb Level Load Capacity