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The Firestone Coil‑Rite replacement air helper spring 5.5 x 7 is a direct-fit bellow intended for in-coil air assist systems to restore variable spring-rate performance. Coil‑Rite components enable on-the-fly air adjustments to level off-center loads, improve handling and braking under weight, and reduce tire wear and bottoming out while operating across a wide temperature range for durable service.
Firestone Coil-Rite Replacement Air Helper Spring 5.5 x 7 CR SVC (W237606006)
