KEIYSHOLCK Cab Sleeper Air Spring Bag Kit for Freightliner Century Class & Argosy - 2pcs, High-Density Rubber

KEIYSHOLCK's two-piece cab sleeper air spring bag kit replaces worn or damaged cab air springs on compatible Freightliner trucks to restore ride cushioning and reduce cab vibration.

This KEIYSHOLCK 2pcs Cab Sleeper Air Spring Bag set is engineered as a direct-fit replacement for specific Freightliner applications (compatible with W02-358-7206, ContiTech SC31W206, Freightliner 18-29919-000, ContiTech AS7206) to bring back the cab isolation and comfort truck drivers expect. Each bag is molded from high-density imported rubber for improved durability and consistent load support compared with standard replacements. The kit is intended for the Century Class and Argosy models; check fitment before ordering to ensure a correct installation.

How will these air springs change ride comfort and cab vibration?

Replacing worn cab airbags restores the suspension’s ability to absorb bumps and isolates the cab from frame vibrations, improving comfort and reducing driver fatigue. The KEIYSHOLCK bags are designed to compress and rebound reliably under heavy-duty use, smoothing out rough roads and minimizing jolts transmitted to the cab.

• High-density rubber construction for consistent rebound and shock absorption.
• Specifically shaped to match cab mounting points on Century Class and Argosy trucks.
• Helps dampen low-frequency vibrations that affect instruments and cargo.
• Two-piece kit ensures both sides of the cab are matched for balanced ride.

Are these air spring bags durable enough for long-haul trucking?

KEIYSHOLCK uses imported high-density rubber to boost resistance to wear, ozone and repeated flexing, which is critical for long-haul applications. The improved material and manufacturing tolerances extend service life compared with many economy replacements, providing more predictable performance under load.

• Durable rubber resists cracking and abrasion from road debris and weather.
• Reinforced bead and fold design for repeated inflation cycles.
• Meets dimensional specs for reliable sealing and fitment.
• Sold as a matched two-pack to avoid uneven cab sagging.

What exactly does this kit fit and how do I confirm compatibility?

This air spring bag kit is matched to common OEM and aftermarket part numbers used on Freightliner cab suspensions: W02-358-7206, ContiTech SC31W206, Freightliner 18-29919-000, and ContiTech AS7206. It’s primarily offered for Century Class and Argosy cabs, but you should compare the truck’s current part number and mounting geometry before purchase.

• Compatible part numbers: W02-358-7206, SC31W206, 18-29919-000, AS7206.
• Typical fitment: Freightliner Century Class and Argosy cab sleepers.
• Confirm by matching existing bag shape, bolt pattern, and part number.
• Contact KEIYSHOLCK support for fitment questions if unsure.

What should I expect during installation and maintenance?

Installation is straightforward for technicians familiar with cab air systems; the bags mount in the cab suspension assembly and require proper torqueing of fasteners and leak-free air fittings. After installation, inspect for leaks and proper ride height; periodic visual checks help catch damage before failure.

• Install with recommended tools and follow OEM torque specifications.
• Check air lines and fittings for leaks after inflation.
• Inspect for cracks, abrasion, or uneven wear during routine service.
• KEIYSHOLCK offers a one-year warranty—keep purchase details for claims.

Who is this for: This KEIYSHOLCK 2pcs Cab Sleeper Air Spring Bag kit is aimed at fleet managers, owner-operators and service shops maintaining Freightliner Century Class or Argosy trucks who need a durable, OEM-compatible replacement. It’s appropriate for drivers wanting to restore cab isolation and protect onboard instruments, as well as for technicians seeking a matched two-piece set that mirrors original fit and function. Always confirm part numbers and mounting interface before ordering to ensure correct fitment.