KEIYSHOLCK Cab Sleeper Air Spring Bag 2pcs — Direct-Fit for Freightliner Century/Argosy, High‑Density Rubber

KEIYSHOLCK 2pcs Cab Sleeper Air Spring Bag is a direct-fit replacement air suspension bag designed to restore cab ride cushioning and reduce vibration on compatible Freightliner Century Class and Argosy trucks.

If your Freightliner cab feels harsher than it used to or instruments and cargo are getting jostled, worn air springs are a common cause. These KEIYSHOLCK cab sleeper air spring bags are made from high-density imported rubber and match ContiTech and original equipment references such as W02-358-7206 and SC31W206. Sold as a two-piece set, they’re intended to replace failed or aging cab airbags to regain controlled motion and protect cab-mounted components.

How will these air spring bags affect cab comfort and ride vibration?

Replacing degraded cab airbags restores the cushion between the cab and chassis, reducing the amount of shock and vibration transmitted into the driver and equipment. Expect a noticeable decrease in harshness over bumps and during braking, and improved isolation of instruments and sensitive loads.

• High-density rubber construction for better shock absorption
• Precision fit for Freightliner Century Class and Argosy models
• Reduces transmitted vibration to cab instruments and occupants
• Sold as a two-piece set to replace both sides or both aging units

Will these fit my truck model and existing hardware?

KEIYSHOLCK air spring bags are compatible with several common references used on Freightliner cab suspensions. Before ordering, compare part numbers and the cab mounting envelope to your existing component. If in doubt, verify against the OEM references or consult a technician.

• Compatible with W02-358-7206, ContiTech SC31W206, ContiTech AS7206
• Matches Freightliner part numbers including 18-29919-000
• Designed for Century Class and Argosy cab suspensions
• Confirm vehicle fitment prior to purchase to avoid returns

What are the construction and durability features of these air springs?

These cab spring bags are molded from imported high-density rubber formulated to resist wear, flex fatigue, and common environmental exposures. The reinforced rubber body supports consistent load performance and resists premature failure when installed and maintained correctly.

• Imported high-density rubber for improved longevity
• Reinforced design to handle repeated compression cycles
• Built to withstand typical road contaminants and temperature swings
• Manufactured to match standard OEM dimensions and mounting points

What should I know about installation, warranty, and maintenance?

Installation typically requires basic suspension disassembly and air-line handling; proper torque and safe lift procedures are important. KEIYSHOLCK provides a 1-year warranty on these air spring bags. Regular inspections and correct inflation pressures will extend service life.

• Check alignment and mounting hardware during replacement
• Inspect airlines, fittings, and valves for leaks when installing
• 1-year warranty against manufacturing defects—contact seller for claims
• Perform periodic visual checks and pressure tests as preventive care

Who is this for: This 2-piece KEIYSHOLCK cab sleeper air spring bag set is intended for truck owners, fleet maintenance teams, and service technicians who operate or repair Freightliner Century Class or Argosy cabs and need a reliable, cost-effective replacement for worn or damaged cab airbags. It’s suitable for restoring cab comfort, protecting in-cab instruments, and maintaining safer, more stable vehicle operation when the original air springs have reached the end of their service life.