Air Spring Replaces Hendrickson C-28929, S-28929, Firestone W01-358-9978 | FleetRun FR-SPSN501

✅ OEM Part Number: Hendrickson S-28929, C-28929, Goodyear 1R12-668, Firestone W01-358-9978, Torque TR9978 ✅ Warranty: 6 month or 50,000 mile warranty from installation, whichever comes first ✅ SEARCH PARTS BY VIN: Contact us if you'd like to search for parts using your VIN or verify fitment ✅ Specifications: Top Plate Hole/Stud Quantity: 2 // Bottom Plate Hole/Stud Quantity: 1 // Extended Height: 19.60 in. // Compressed Height: 7.80 in. // Top Plate Diameter: 9.00 in. // Bottom Plate Diameter: 10.25 in. // Top Plate Studs Center To Center: 5.50 in. // Top Stud(s) Outer Thread: 3.4-16 UNF // Top Stud(s) Inner Thread: 1/4-18 NPTF // Bottom Stud Thread: 1/2-13 UNC