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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
4000 Series Medium Trucks: 4600–4900 w/ International Air Suspension (except Low Profile)
1-Year Unlimited Mile Warranty – includes assurance of quality and replacement coverage if any issue occurs within the warranty period
Compatible with Thermo King Models
Equipped with dust tube and recoil cutoff
2 × Side Marker Bulbs (installed)
Single Convoluted Air Spring Replacement | Replaces Firestone W01-358-7001 Goodyear 1B5500 Bumpers 4000 Series Medium Trucks: 4600–4900PRODUCT OVERVIEW TORQUE single convoluted air spring engineered for reliable performance in pneumatic suspension and industrial airstroke actuator applications. Designed to meet or exceed OEM standards for durability, sealing, and load support. QUALITY & PERFORMANCE Each air spring is 100% leak tested after final assembly to ensure consistent air retention, dependable operation, and long service life in demanding environments. SPECIFICATIONS Style: