| Manufacturer | OEM REFERENCE |
| CONTITECH | FD 331-26 480/FD 331-26 541 / FD 331-26 541 |
| Firestone Bellows Number | 228-1.5 |
| Firestone part Number | W01 358 7550 / W01 358 7555 / W01-358-7550 / W01-358 -555 |
| GOODYEAR | 2B12-440 / 2B12-346 / 2B12 440 / 2B12 346 |
| GOODYEAR-FLEXMEMBER | 578-92-3-315 / 578923315 / 578 92 3 315 |
| Triangle | 6375/4480 |
| HISTEER | 10315 |
| WATSON & CHALIN | AS-0087 |
| Histeer | 10315 |
| HS INDUSTRIES/LINK # | 10315 |
| Top Plate Number | 3271 |
| Piston Number | 3183 |
Specification of AIRSUSTECH 2B7550 Cross to Fd 331-26 541 Contitech Air Spring:
Assembly Weight: 13.4 lbs
Design Height: 9-11 inches
Minimum Jounce Height: 3.55 inches
Loading Capacity at 20 psig: 1,240 lbsf
Loading Capacity at 60 psig: 3,720 lbsf
Loading Capacity at 90 psig: 5,580 lbsf
Maximum Diameter: 13.5 inches
Operating Temperature: 57Cº to -54Cº
Order No 60040155 ST 207550 Air Spring
OEM References Cross References
Watson & Chalin AS-0087 Contitech FD 331-26 541
Firestone 228-1.5
Firestone W01-358-7550
Goodyear 2B12-346 Ø8.97
Goodyear 578923315 3/4''-16UNF
Triangle SP2B22RB-7550 1/2''-18NPT 1/2''-13UNC
Airtech 2B-320 / 113343 Ø12.00
6.20
3.60 ST 207550 6.20
2x3/8"-16UNC
Nut / Blind Nut
Top Cover Plate Screw (Nut) Tooth : 1 pcs X 1/2-13UNC
Top Cover Plate Combination Nut : 3/4-16UNF
Screw Center Distance of Top Cover Plate : 157 mm / 6.2 inches
Bottom Cover Plate Screw (Nut) Tooth : 2 pcs X 3/8-16UNC
Screw Center Distance of Bottom Cover Plate : 157 mm / 6.2 inches
Gas Hole / Air inlet / Air Fitting
Gas Hole / Air inlet : 1/4-18NPT , Combination Stud/Air Inlet Stud
Cover Plate
Top Cover Plate Diameter (Width): 224.5 mm / 9.00 inches
Bottom Cover Plate Diameter (Width): 224.5 mm / 9.00 inches
Rubber Bellows
Rubber Bellows MAX Diameter : 343 mm / 9.7 inches
Compressed Height: 104 mm / 4.1 inches
Maximum Height: 363mm / 14.3 inches
Working Stroke : 259 mm / 10.2 inches
Bumper block / Buffer block
With Bumper Block
Girdle Hoop / Girdle Ring
With Girdle Hoop :One Pieces of Girdle Hoop
The drawing and data of AIRSUSTECH 2B7550 air spring:
