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Firestone Coil-Rite replacement air helper spring component is intended for coil-sprung vehicles where supplemental air assist is needed to control sag and improve ride under load. Installed inside the factory coil spring, the air helper spring lets you adjust pressure to manage varying loads and road conditions, offering a practical approach to maintain ride height and handling characteristics without implying vehicle-specific fitment when that detail is not provided.
Firestone Coil-Rite Replacement Air Helper Spring 4in Dia. x 6in Length (Type - D) (W237606028)
