KEIYSHOLCK Freightliner Cab Sleeper Air Spring Bag 2pcs — Direct-Fit, High-Density Rubber for Improved Ride Comfort

This two-piece cab sleeper air spring set fits a range of Freightliner models (including Century Class and Argosy) and is compatible with part numbers W02-358-7206, ContiTech SC31W206, Freightliner 18-29919-000 and ContiTech AS7206. Each bag is molded from high-density imported rubber to improve durability and load-bearing performance compared with standard suspension components. The kit aims to reduce vibrations transmitted to the cab, improve passenger comfort, and help preserve delicate instruments and fittings.

How does this air spring bag improve ride comfort for long-haul drivers?

The KEIYSHOLCK cab spring absorbs road shocks and steady-state vibrations before they reach the sleeper cab, smoothing the ride and reducing driver fatigue. Its rubber construction cushions impacts and helps maintain a steadier platform for sensitive equipment inside the cab.

• High-density rubber compound for better damping performance.
• Designed to support cab weight and steady loads over long routes.
• Reduces transmitted vibration to instruments and occupants.
• Direct-fit design minimizes installation time when replacing worn units.

Will these air spring bags fit my Freightliner truck?

These air springs are engineered as direct replacements for models listed by common OEM and aftermarket part numbers. Before ordering, match the vehicle’s existing part number or consult vehicle fitment documentation to confirm compatibility with Century Class and Argosy cabs.

• Compatible with W02-358-7206 and ContiTech SC31W206 references.
• Also listed for Freightliner 18-29919-000 and ContiTech AS7206.
• Intended for cab sleeper applications on specified Freightliner models.
• Verify fitment by comparing current part numbers and mounting points.

What are the durability and safety features of these suspension bags?

The KEIYSHOLCK bags use imported high-density rubber for extended life and consistent performance under load. By reducing the impact forces transmitted into the cab, they lower the risk of damage to mounted instruments and improve occupant safety during rough-road conditions.

• Reinforced rubber resists abrasion and repeated flexing.
• Improved load performance compared with generic air suspension parts.
• Helps protect cab-mounted equipment from shock-related wear.
• Manufactured to meet expected heavy-duty commercial vehicle demands.

How easy is installation and what warranty support is offered?

KEIYSHOLCK supplies these air springs as direct-replacement units to streamline installation for professional technicians or experienced DIYers. A one-year warranty covers manufacturing defects — contact the seller for warranty claims or fitment questions if you’re unsure before purchase.

• Direct-fit design matches common Freightliner mounting points.
• Minimal modification expected when replacing like-for-like parts.
• One-year warranty for manufacturing-related issues.
• Seller support recommended for pre-purchase compatibility checks.

Who is this for: This KEIYSHOLCK 2-piece cab sleeper air spring kit is intended for fleet owners, owner-operators, and heavy-truck service shops replacing worn or damaged cab suspension on Freightliner Century Class and Argosy models. Choose this kit if you need a heavier-duty rubber air spring to reduce vibration, protect cab equipment, and restore a smoother sleeper-cab ride—just confirm part numbers before ordering to ensure correct fitment.