Cascadia Cab Mount Air Spring - Premium Sleeve Type (2008-2018) - Replaces 18-73178-000

Restore the legendary smooth ride of your cockpit with this premium Cascadia Cab Mount Air Spring by FleetPro Parts & Tires. Specifically designed for Freightliner Cascadia models (2008–2018), this sleeve-type air bag is the critical link in your cab's secondary suspension system. Engineered with a high-strength aluminum base and reinforced rubber sleeve, it effectively isolates the driver from road vibrations, chassis twist, and harsh impacts. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for owner-operators and fleets across the Midwest and nationwide.

Ultimate Operator Comfort: The Cascadia Cab Mount Air Spring Advantage

This Cascadia Cab Mount Air Spring is a professional-grade replacement for worn or leaking factory cabin bags. It features a lightweight yet durable aluminum base plate that resists the corrosion and road salt damage common in older plastic or steel designs. Note: This sleeve-type spring offers an impressive travel range, with a compressed length of 2.4" and a full extension of 8.11", ensuring your cab remains level and stabilized even on the roughest highways.

At FleetPro Parts & Tires, we prioritize cabin suspension components that meet or exceed strict OEM durability standards. This air bag is a direct professional-grade replacement for major part numbers including Freightliner 18-73178-000, Firestone W02-358-7215, and Goodyear 1S5-175. Replacing your cab air springs is the most effective way to reduce driver fatigue and prevent secondary damage to dashboard components and electrical harnesses. Upgrade to FleetPro quality today.

Vehicle Fitment & Compatibility

This sleeve-type air spring is precision-engineered for the following heavy-duty applications:

• Make: Freightliner
• Model: Cascadia (First Generation)
• Years: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
• Position: Rear Cab Mount Suspension

Direct Replacement & Cross-Reference Numbers:

This cab air spring serves as a direct exact-fit replacement for the following part numbers:

• Freightliner OEM: 18-73178-000, 18-40977-000, 18-52651-000, 18-66715-000, 18-68661-000
• Firestone: W02-358-7215, W02-358-7207, W02-377-7215, 7215, 7207
• Goodyear: 1S5-175, 1S5175
• Continental-ContiTech: SC31-Y215, 67451, 68161, CB7215
• Automann: ABSZ70-7215, 310V/ABPN32027215
• Triangle: AS-7215, AS-5215, 5215

Technical Specifications

• Air Spring Type: Sleeve Type (Reversible)
• Base Material: High-Strength Aluminum
• Top Plate Diameter: 3.15"
• Bottom Plate Diameter: 2.87"
• Extended Length: 8.11"
• Compressed Length: 2.40"
• Bottom Mounting: 2.25" Center-to-Center
• Brand: FleetPro Parts & Tires