Restore the ride control and handling of your full-size GM truck with the KYB Gas-a-just Front Suspension Strut (P/N 551121). This high-pressure monotube gas strut is a direct-fit front replacement for the 2007-2013 Chevrolet Silverado 1500, 2007-2014 Chevrolet Tahoe and Suburban 1500, 2007-2013 Chevrolet Avalanche, 2008-2014 Cadillac Escalade and Escalade ESV, 2008-2013 Cadillac Escalade EXT, 2007-2013 GMC Sierra 1500, and 2007-2014 GMC Yukon and Yukon XL 1500 — see the Buyer's Guide tab for the full application list.
- Twin-chamber monotube design: An air-free hydraulic piston and valve area handles responsiveness and control, while a separate high-pressure nitrogen gas chamber with a floating piston separates gas and oil for fade-free operation and instant response.
- OE monotube replacement: Built to restore the vehicle's original designed capabilities and to help keep Electronic Safety Systems performing as intended.
- Triple chrome-plated piston rod: An ultra-smooth rod finish helps reduce seal wear, since fluid leaking can be a cause of strut failure.
- Built for trucks that work: Designed for vehicles that tow and run larger, heavier tires and wheels, with higher gas pressure to help improve steering response.
To reduce the chance of noise and vibration, KYB recommends installing new strut mounts (part number SM5530), and protecting the struts with a KYB Strut Boot (part number SB129).
Frequently Asked Questions
Is this strut for the front or rear?
It is a front suspension strut. Struts install as left/right pairs, so it's good practice to replace both front sides together for balanced ride control.
What makes the Gas-a-just a monotube design?
It uses two separate chambers: an air-free hydraulic piston and valve area for control, plus a high-pressure nitrogen gas chamber with a floating piston that separates gas and oil for fade-free response.
Does this fit my vehicle?
It's a direct-fit front replacement for listed full-size GM trucks and SUVs, including the Silverado 1500, Tahoe, Suburban 1500, Sierra 1500, Yukon, Escalade and more. Check the Buyer's Guide tab.
Do I need any additional parts?
To reduce the chance of noise and vibration, KYB recommends new strut mounts (part number SM5530). A KYB Strut Boot (part number SB129) helps protect the strut from dirt, debris and salt.
What does the triple chrome-plated piston rod do?
Its ultra-smooth finish helps reduce seal wear. Because fluid leaking can be a cause of strut failure, the smoother rod is designed to help protect the seal.
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