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(888) 312-8812 Login SignupThrough a reversible sleeve that rolls as the suspension compresses and extends, the Firestone Suspension Air Spring spreads flex across the bellows instead of concentrating it at one point. The MT-series design behind this spring targets a specific mounting height and travel range distinct from other reversible-sleeve lines in the broader Airide family. The Firestone W013589371 matches the piston profile and bead configuration the 1T15MT application was engineered around. Correct piston and bead matching keeps the sleeve seated properly through its full range of travel instead of walking off-center under load.
TECHNICAL DATA -
|
Order Number: |
W01-358-9371 |
|
Bellows #: |
1T15M-8 |
|
Assembly Weight: |
18 lbs |
|
Design Height: |
12.5-13.5 inches |
|
Minimum Jounce Height: |
5.9 inches |
|
Maximum Rebound Height: |
21.53 inches |
|
Loading Capacity at 20 psig: |
1,510 lbsf |
|
Loading Capacity at 60 psig: |
4,530 lbsf |
|
Loading Capacity at 90 psig: |
6,795 lbsf |
|
Natural Frequency: |
Hz |
|
Maximum Diameter: |
12.7 inches |
|
Material Type: |
N/A |
|
Operating Temperature: |
57Cº to-54Cº |
|
Remarks: |
|
|
TR: C-2096 |
| Brand | Part Number |
|---|---|
| AS9371, 1R12-401, 566241000, 566243038, FIW013589371 | |
| AIRTECH | 39371 C |
| AIRTECH AIR SPRINGS | 39371KPP |
| CONTITECH | 1DK23L9371, 910175P521, 910185P521, AS9371 , AS9371 |
| DAYTON PARTS | 452-9371L |
| FIRESTONE | 1T15M8, 1T15MT-8 |
| GOODYEAR | 1R12-401, 1S12244 |
| GOODYEAR BELLOWS | 566-24-1-000, 566-24-3-038 |
| GOODYEAR PART | 1R12-401, 1S12-244 |
| MERITOR | FS9371, MAF9371 |
| NAVISTAR | 1670043C1, 1670043C-1, 1686386C-1 |
| PISTON | 9560 |
| TOP PLATE | 3315 |
| TORQUE PARTS | TR9371 |
| TRIANGLE BELLOWS | 6391 |
| TRIANGLE PART | 8521 |
| TRIANGLE SUSPENSION | AS-8521 |
| WORLD AMERICAN | WA01-9371C |
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Headquartered in Nashville, Tennessee, Firestone Industrial Products® is a proud manufacturer of air spring and other anti-vibration solutions to heavy duty trucks, trailers, commercial vehicles, rail cars, and industrial equipment. It has come a long way since it revolutionized transportation with the introduction of the Airide™ Air Spring in 1938. Today, Firestone is more than just an air spring manufacturer—it’s a global leader and a local partner that sees solutions where others see obstacles. Both OEMs and everyday consumers trust this brand for their air suspension needs because of its unwavering commitment to quality and reliability. All Firestone parts are engineered and tested in ISO-certified facilities to ensure they meet the strictest standards and customer specifications.
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