UNKNOWN WA01-9375C AIR SPRING ASSEMBLY 128850

Description:

The UNKNOWN WA01-9375C Air Spring Assembly 128850 is used in heavy-duty air suspension systems to provide load support, vibration isolation, and ride height control for commercial vehicles and industrial mobile equipment. Commonly installed in Mack Class 8 trucks, Hendrickson HAS drive axle suspensions, heavy-duty trailers, and vocational vehicles requiring rolling lobe air springs for improved ride quality and suspension performance. Maintenance teams, fleet operators, and OEMs use this air spring assembly for replacement, retrofit, and suspension repairs to restore load capacity and ensure smooth, reliable operation. 

Applications:

The UNKNOWN WA01-9375C Air Spring Assembly 128850 is used to absorb shock loads and maintain ride height in air suspension systems. It is commonly found in Mack Anthem, Pinnacle, and Granite trucks equipped with Hendrickson HAS suspensions, as well as heavy-duty trailers and industrial transport vehicles where load support and vibration isolation are critical. Rolling lobe air springs are widely used because they provide superior ride comfort, reduce chassis stress, and improve suspension durability.

Technical Specifications:

• Manufacturer: Unknown 
• Part Number: WA01-9375C
• Secondary Identification: #128850
• Product Type: Air Spring Assembly
• Spring Type: Rolling Lobe Air Spring
• Function: Provides load support and vibration isolation
• Extended Height: 22.0 in
• Compressed Height: 8.1 in
• Maximum Height: 22.9 in
• Minimum Height: 7.5 in
• Maximum Diameter: 12.6 in
• Top Plate Diameter: 9.0 in
• Bottom Plate Diameter: 10.0 in
• Design Height: 12.0 in
• Load Rating at 80 PSI: 5,900 LB
• Load Rating at 100 PSI: 7,500 LB
• Compatible Systems: Mack Class 8 Trucks and Hendrickson HAS Drive Axle Suspensions
• Bellows Cross Reference: Firestone 1T15MT-8, Goodyear 566-24-3-097
• Application: Air Suspension Systems for Heavy-Duty Vehicles
• Operating Environment: Highway, Vocational, and Industrial Vehicle Applications

Common Replacements:

• Firestone W01-358-9375
• Goodyear 1R12-404
• Hendrickson 50899-002