FIRESTONE W013588713 Air Spring - 21.50" Extended, 8.00" Compressed, 10.38" Width Top Plate, Reversible Sleeve

Manufacturer

FIRESTONE

Features & Benefits

• Extended height of 21.50 inches supports a full suspension travel range
• Integrated washer and nut hardware simplifies assembly alignment
• Heavy-duty construction aligns with truck and trailer suspension demands
• Compressed height of 8.00 inches accommodates low-clearance axle positions
• Top plate number 3344 provides a defined mounting interface geometry
• 2 x 3/4 CF piston stud configuration allows secure attachment points

Firestone Air Spring

The Firestone Air Spring functions as a load-responsive suspension component for truck and trailer applications where ride behavior must adjust as weight and road conditions change. As air pressure inside the spring increases or decreases, the assembly expands or compresses vertically, influencing axle movement relative to the frame. This response allows the suspension system to adapt continuously without mechanical coil resistance. The Firestone W013588713 works in coordination with valves and air lines, reacting automatically as the vehicle encounters uneven terrain or varying cargo loads. Its operation centers on vertical motion control driven by air volume changes rather than fixed-rate components, supporting consistent suspension behavior throughout normal driving cycles.