Air Suspension Spring Bag Air Bellows Shock Absorber Part for GRAMMER Seat Function Restores seat air suspension performance for smoother rides and reduced vibration on long hauls. Supports consistent seat height and cushioning to reduce driver fatigue. Replaces worn or leaking air bellows to maintain stable, comfortable seating. Compatibility Designed for GRAMMER seat air suspension systems. Direct replacement for OE part numbers: 174855, 1029434, 58100109300. Verify your seat model and OE number before to ensure proper fit. Key Benefits Comfort and support: Engineered to deliver steady air cushioning over uneven roads. Reliable performance: Durable construction resists wear and deformation under continuous use. Hassle installation: Simple bolton replacement; no special tools required. Materials and Build Made of durable, longlasting materials engineered for repeated compression and expansion. Quality air bladder and sealing surfaces help maintain consistent air pressure. Performance Smooth damping response helps minimize jolts and vibrations. Maintains seat stability across varying loads and road conditions. Designed to match OE specifications for fit and function. Size and Fitment Built to OE dimensions corresponding to the listed part numbers for correct alignment and air line connection. Compact form factor for easy access during installation and replacement. Use Scenarios Longdistance trucking: Keeps the driver seat cushioned during extended highway runs. Construction and agricultural equipment: Provides steady support over rough terrain. City delivery routes: Helps reduce repetitive impact from frequent stops and speed bumps. Installation Direct swap with the existing air spring bag. No special tools required; reuse existing mounting points and air connections. Check for air leaks after installation to confirm proper sealing. Notes in pairs when possible for consistent seat feel. Regularly inspect air lines and fittings to maintain performance.