W01-3598-9371 Gas-Filled Air Bellow 1R12-401 Rubber Air Suspension System/ Truck Spare Parts Steel Piston 910-18.5P521
OEM
| CONTITECH | 9 10-17.5 P 521 | DAYTON | 352-9371 |
| FIRESTONE | 1T15MT-8 | NAVISTAR | 2027911C-1 |
| FIRESTONE 2 | W01 358 9371 | 1686386C-1 | |
| GOODYEAR | 1R12-401 | 1670073C-1 | |
| 1R12-244 | TRIANGLE | 8521 |
Drawings

Specifications
| Air Spring Air Fitting Size | Combination Stud/Air Inlet Stud Outside Thread is 3/4-16 ; Studs Inside Thread (Air Inlet) is 1/4 N.P.T. |
| Air Spring Compressed Height | 6 in. |
| Air Spring # of Lobes | 1 Solid Sleeve |
| Air Spring Type | 1T - Reversible Sleeve |
| Bead Plate (Top) & Deflated Bellows O.D. | 9 and 10.12 in. |
| Bead Plate (Top) Mounting Bolts Dimension Center to Center | 5.75 in. |
| Diameter | 10.12 in. |
| Extended Height Deflated | 22 in. |
| Finished Weight | 18 lbs |
| Piston (Bottom) Mounting Bolt Dimensions Center to Center | 4.12 in. |
| Piston Height | 4.88 in. |
| Bead Plate Top Diameter | 9 in. |
| Bead Plate Bottom Diameter | 10 in. |
| Application | Navistar 1670073C-1, Navistar 1686386C-1 |
| Assembled Product Weight (lb) | 18 |
| Bellows | 1T15M-8 |
| Bottom Bead Plate Hardware Key | 2 x Bold or Stud 1/2-13 |
| Design Height (in.) | 12.5-13.5 |
| Loading Capacity at 20 psig | 1,510 lbsf |
| Loading Capacity at 60 psig | 4,530 lbsf |
| Loading Capacity at 90 psig | 6,795 lbsf |
| Maximum Diameter | 12.7 |
| Maximum Rebound Height (in.) | 21.53 |
| Minimum Jounce Height (in.) | 5.9 |
| Natural Frequency | Hz |
| Operating Temperature (Deg C) | 57 to -54 |
| Top Bead Plate Hardware Key | Bold or Stud 1/2-13 |