The KYB Gas-a-just Front Suspension Strut, part number 551121, is engineered to restore your vehicle's original capabilities while enhancing its performance. Designed with two separate working chambers, it offers increased responsiveness and a smoother ride thanks to its high-pressure nitrogen gas chamber. This makes it an ideal choice for GM trucks and SUVs that require improved handling, especially when towing or hauling heavy loads. Compatible with a range of models including Cadillac Escalade and GMC Yukon, this strut delivers not only comfort but also precise control and durability.Replace your worn-out or failing suspension components to ensure your vehicle's safety and performance are never compromised. Symptoms that indicate a need for strut replacement include poor steering response, unusual tire wear, or fluid leaks. For a comprehensive suspension upgrade, consider pairing the KYB Gas-a-just strut with new strut mounts (Part: SM5530) and a robust strut boot (Part: SB129) for optimal protection against debris.

• OE monotube replacement for perfect fit
• High-pressure gas chamber for instant response
• Ideal for heavy-duty towing and hauling
• Triple chrome-plated piston rod reduces wear
• Enhances vehicle's electronic safety systems

Part Number:	551121
Compressed Length:	13.26 in
Extended Length:	17.71 in
Stroke Length:	4.45 in
Lower Mount Type:	E3(100x128x10)
Upper Mount Type:	10x1.25
Weight:	9.4 lbs
Compatibility:	Cadillac, Chevrolet, GMC models

• Chevrolet: 15903323
• GMC: 15846889
• GMC: 15903323
• GMC: 20955500
• GMC: 25871207
• Monroe Shocks & Struts: 39105
• Chevrolet: 20955486
• GMC: 15903315
• Chevrolet: 20955498
• Cadillac: 20955498
• GMC: 20955498
• Cadillac: 22811853
• Cadillac: 20955500
• Cadillac: 25871207
• GMC: 22811853
• Chevrolet: 20955487
• Cadillac: 20955487
• Chevrolet: 25871207
• GMC: 20765171
• Chevrolet: 15903303
• GMC: 15903303
• Chevrolet: 20958799
• GMC: 20955486
• Chevrolet: 20955500
• Chevrolet: 20765171
• Cadillac: 20955486
• Gabriel: G51870
• Chevrolet: 15846889
• GMC: 20958799
• Chevrolet: 15903315
• Cadillac: 20958799
• Chevrolet: 22811853
• Cadillac: 20765171

• 2007-2014 Chevrolet Suburban 1500 | Position: Front | Note: Recommended OEM Replacement;w/o Electronic and Premium Smooth Ride Suspension
• 2007-2013 GMC Sierra 1500 | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Suspension)
• 2007-2014 GMC Yukon | Position: Front | Note: Recommended OEM Replacement;(Except Electronic, ZW7 Premium Smooth Ride Suspension and w/o Police Package)
• 2008-2014 Cadillac Escalade | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Adjustable Suspension)
• 2008-2013 Cadillac Escalade EXT | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Adjustable Suspension)
• 2008-2013 Chevrolet Silverado 1500 | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Susp.)
• 2011-2014 GMC Yukon | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Suspension and Police Package)
• 2007-2013 Chevrolet Avalanche | Position: Front | Note: Recommended OEM Replacement;Except Electronic and Premium Smooth ride Suspension
• 2007 Chevrolet Silverado 1500 | Position: Front | Note: Recommended OEM Replacement;(Except Electronic Suspension)
• 2007-2014 Chevrolet Tahoe | Position: Front | Note: Recommended OEM Replacement;(Except Electronic, ZW7 Premium Smooth Ride Suspension and w/o Police Package)
• 2007-2013 GMC Sierra 1500 | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Susp.)
• 2007-2014 GMC Yukon XL 1500 | Position: Front | Note: Recommended OEM Replacement;Except Electronic and Premium Smooth ride Suspension
• 2008-2014 Cadillac Escalade ESV | Position: Front | Note: Recommended OEM Replacement;(Exc. Electronic Adjustable Suspension)
• 2011-2014 Chevrolet Tahoe | Position: Front | Note: Recommended OEM Replacement;ALL (Except Electronic and ZW7 Premium Smooth Ride Suspension)