Air Spring - 2 Lobes - Convoluted - 21
Features & Benefits
- Manufactured to Meet or Exceed O.E.M. Specifications in Function, Form & Fit.
- Today, Airide Springs are Used by Practically All Manufacturers Who Offer Air Ride Suspensions on Their Vehicles.
- Airide Springs Were Pioneered & Perfected by Firestone, and Only Firestone Offers a Complete Line of Airide Springs.
Specifications
| Air Inlet | Air Inlet 1/4 in NPT |
| Air Spring Type | Double Convoluted |
| Application | Silent Drive, Truckstell (Marion Mfg.) 63641, Hendrickson Can. B-12514-014, Truckstell (Marion Mfg.) 63644 |
| Bead Plate (Top) & Deflated Bellows O.D. | 11.31 in @ 14.5 in (28.73 cm @ 36.83 cm) |
| Bead Plate (Top) Mounting Bolts Dimension Center to Center | 6-1/4 in (15.88 cm) |
| Bellows | 21 |
| Bottom Bead Plate Hardware Key | 4 x Bold or Stud 1/2-13 |
| Bottom Plate Diameter | 11-5/16 in (28.73 cm) |
| Compressed Length | 3-1/8 in (7.95 cm) |
| Design Height (in.) | 8 in @ 9-1/2 in (20.32 cm @ 24.13 cm) |
| Diameter | 14-1/2 in (36.83 cm) |
| Firestone Bellows Number | 21 |
| Goodyear Bellow # | 578923353 |
| Loading Capacity at 20 psig | 1912 lb-ft |
| Loading Capacity at 60 psig | 5736 lb-ft |
| Loading Capacity at 90 psig | 8604 lb-ft |
| Piston (Bottom) Mounting Bolt Dimensions Center to Center | 6-1/4 in (15.88 cm) |
| Temperature | 57°C @ -54°C (134.6°F @ -65.2°F) |
| Top Bead Plate Hardware Key | 4 x Bold or Stud 1/2-13 in |
| Top Plate Diameter | 11-5/16 in (28.73 cm) |
| Weight | 17.6 lb (7.98 kg) |
Interchanges & Equivalent parts:
2B14360, 354-7135, 90557001, AB7135, AS-4311, FIR7135, 12514-014, 3040-W013587135, 3917973, 4311, 63644, 905-57-001, AR21A, AS7135, AS71350, B-12514-014, FD 530-22 311, FI W01 358 7135, FIRW01-358-7135, FS7135, FSIW013587135, G2297135500, TR7135, TWDW013587135, W013587135, 7135, 3130501, 554800C1, 57QL46, B12514014, FD 530 22 311, RA19901, S-12514-014, S-13034, S12514014, S13034, S1326C, SC2013, W01-358-7135, 90557001, AB7135, 2B14360, 354-7135, AS-4311, FIR7135, FIRW01-358-7135, AS71350, FSIW013587135, TR7135, FD 530-22 311, 4311, FI W01 358 7135, AS7135, 905-57-001, FS7135, 63644, 3917973, B-12514-014, TWDW013587135, AR21A, G2297135500, 3040-W013587135, 12514-014, W013587135, 7135, RA19901, 57QL46, S13034, S-12514-014, 554800C1, S1326C, SC2013, B12514014, S12514014, S-13034, FD 530 22 311, 3130501, W01-358-7135, 150113, M6612
