Freightliner Cascadia Air Spring 16-21917-000, 16-21478-001

Description

Freightliner Cascadia Air Spring 16-21917-000, 1621917000

Keep your ride smooth and stable with this air spring for Freightliner Cascadia trucks. This part replaces OEM numbers 16-21917-000 and 16-21478-001, and fits many Cascadia models with rear air suspension.

Air springs are a key part of your truck’s suspension system. They help support the load, reduce vibration, and keep the truck level. If your air bag is leaking or sagging, it’s time for a replacement. A new air spring helps restore comfort and keeps your truck handling safely.

This air spring is made from durable rubber and reinforced materials that resist heat, pressure, and road wear. It’s designed for long-lasting performance, even under heavy loads and long-distance driving.

It installs easily using the factory mounting points. You don’t need special tools or custom brackets. It’s a direct fit and works with both OEM and aftermarket suspension systems.

🔧 Features – Freightliner Air Spring (16-21917-000 / 16-21478-001)

• Fits Freightliner Cascadia models with air suspension

• Replaces OEM parts:

  • 16-21917-000

  • 16-21478-001

  • Direct Replacement OEM Part #’s 16-21917-000, 1621917000, A16-21917-000, A1621917000, A1621478001, A16-21478-001, 16-21478-001, 566ER7465

• Heavy-duty rubber and composite construction

• Helps absorb shock and maintain ride height

• Supports trailer loads and smooths out the ride

• Reduces frame stress and protects cargo

• Resistant to road salt, oil, and extreme weather

• Installs with OEM-style brackets

• DOT and SAE compliant

• Sold individually

This air spring is perfect for keeping your suspension working right and helping your truck last longer on the road.

🛠 We Install Too

Need help with installation? Visit our shop in Alsip, IL, or call 708-866-2000 to schedule service.

💡 Why Buy from TZ Parts?

TZ Parts is your one-stop shop for semi-truck suspension and body parts. We supply drivers and fleets across the U.S. with top parts for Freightliner, Volvo, Kenworth, Peterbilt, Mack, and International.

✅ Fast nationwide shipping
✅ Friendly and knowledgeable support
✅ OEM fitment accuracy
✅ Easy returns

🛒 Browse more Freightliner suspension parts
🌐 Visit www.tzparts.com
📞 Questions? Call 708-866-2000