This suspension bolster spring is designed to match the performance of an original equipment bolster spring on specified heavy duty vehicles. When the factory spring wears out from normal fatigue, this replacement is engineered to help restore proper supplementary support of the vehicle’s primary suspension system.
- Direct replacement – this suspension bolster spring is designed to match the performance of an original equipment bolster spring on specified heavy duty vehicles
- Restores support – when the factory spring wears out from normal fatigue, this replacement is engineered to help restore proper supplementary support of the vehicle’s primary suspension system
- Durable construction – designed and manufactured to strict specifications for reliable performance
- Trustworthy quality – backed by a team of product experts in the United States with more than a century of experience in the design of heavy duty truck parts

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