Unity 15-563001 Air Suspension Spring - Rear Left

Rear Left Air Suspension Spring for GX470 and 4Runner

Restore rear suspension support with this Unity air suspension spring/bag for the rear left position. Part number 15-563001 is built for direct replacement use on select Lexus GX470, Toyota 4Runner, and Toyota Land Cruiser applications with rear air suspension.

Unity Automotive draws on more than 40 years in aftermarket suspension manufacturing and builds its air suspension components to OEM specifications for consistent fit and assembly quality. The Unity Air Suspension Spring/Bag line focuses on OE-style replacement parts for vehicles that rely on air-assisted rear ride height control.

• Rear left air suspension spring/bag
• Direct-fit replacement for select rear air suspension applications
• Built to OEM specifications for fit and function
• Application-specific for Lexus GX470, Toyota 4Runner, and Toyota Land Cruiser
• Unity part number 15-563001

Detailed Product Information

This air suspension spring/bag is used on the rear left side of vehicles equipped with factory air suspension. It is listed for 2003-2009 Lexus GX470, 2002-2009 Toyota 4Runner, and 2002-2009 Toyota Land Cruiser. If you are replacing a worn rear air spring on a Lexus GX470 or Toyota 4Runner, part number 15-563001 provides an OE-style service solution for the original suspension layout.

This part cross-references Toyota/Lexus OE numbers 4808035010 and 4809035010 for the same application.

Common Issues This Part Addresses

• Rear suspension sag on the left side
• Loss of ride height after parking
• Uneven rear stance between left and right sides
• Air spring wear that affects load support
• Ride quality changes caused by a failing rear air bag

Installation Notes and Tips

Verify the rear left position and confirm factory air suspension before ordering. Compare the original part number and vehicle fitment details against your existing component to ensure correct application. After installation, inspect the system for leaks and confirm proper ride height operation.

Quality Assurance

Unity Automotive states that its suspension products are manufactured to OEM specifications and backed by a customer satisfaction guarantee. The brand’s focus on aftermarket suspension engineering supports consistent replacement quality for vehicles such as the Lexus GX470, Toyota 4Runner, and Toyota Land Cruiser.