The Hellwig EZ-990 helper spring kit for ProMaster 1500/2500/3500 (2014–2021) offers up to 1,500 lb level-load capacity in a medium-duty bolt-on package. Manufactured from heat-treated ASTM 5160 alloy spring steel, it includes heavy-duty hardware and adjustable U-bolts for simple tuning to uneven loads. Easy installation, improved control and a limited lifetime warranty make it a cost-effective solution for light commercial hauling.
Hellwig 14-21 Ram ProMaster 1500 Single Leaf EZ 990 Helper Spring - Up To 1500 Lb