Description
Part Identification
Manufacturer: Firestone Industrial Products
Firestone P/N: W01‑358‑9069
Firestone Style / Bellows: 1T15M‑4
Air Spring Type: Reversible sleeve (rolling lobe)
Key Specifications
Extended height: 18.00 in
Compressed height: 7.50 in
Top plate diameter: 9.00 in (Top plate #3202)
Bottom piston diameter: 9.50 in (Piston #9544)
Air connection: Top, single
Design height range: ~10.5–12.5 in
Common Cross‑References
This air spring crosses to many OEM and aftermarket numbers, including:
Goodyear: 1R12‑069
ContiTech: 64274 / 9 10‑14 P 312
Hendrickson: S‑13031
Peterbilt: 03‑01649, 03‑02038, 03‑02456, 03‑04759, 03‑06746, 03‑07112, 03‑10042
FleetPride: AS9069
Volvo: 85101145
Watson & Chalin: AS‑0077
Typical Applications
Heavy‑duty Peterbilt trucks with air suspension
Trailer and tractor air‑ride systems requiring a 1T15M‑4 style spring
Peterbilt Air Spring Bag With OEM 1R12069 W013589069 3130497 310042 9069
OE/OEM Part Number: 1R12-069,W013589069,3130497,554764C1 | Manufacturer Part Number: 899069 | Features: 100% Accuracy of Fit | Manufacturer Warranty: 1 Year | Brand: Maxx Truck Parts | Shock Absorber Type: Air | Type: Airbag | Mounting Style: Stud | Interchange Part Number: S13031,1R12669,310042,301649,302038,302456,304759,30674,02456 |





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