KYB SA1019 Suspension Shock Absorber - Rear Left

KYB Excel-G Rear Left Shock for Cadillac ATS

The KYB Excel-G SA1019 is a rear left shock and mount assembly built to restore original ride control on the 2013-2019 Cadillac ATS. It is calibrated to return factory-style stability, stopping response, lane change control, and handling without changing the vehicle’s intended feel.

Key Features

• Fits 2013-2019 Cadillac ATS, rear left
• Nitrogen gas-charged, twin-tube shock absorber design
• Shock and mount assembly with dust cover included
• OE-quality components built on KYB OE assembly lines
• Original Equipment for the Aftermarket (OEA) calibration
• Part number SA1019 for direct application lookup
• Compressed length: 14.41 in; extended length: 20.39 in; stroke length: 5.98 in
• Lower mount type: E2(12x48); upper mount type: S1

Product Details

KYB Excel-G is the brand’s OE-style replacement line for drivers who want the suspension to perform as originally engineered. The SA1019 uses the same manufacturing approach and quality components found in KYB’s original equipment production, making it a direct-fit choice for restoring rear suspension response on the Cadillac ATS. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

For Cadillac ATS rear suspension service, the KYB Excel-G SA1019 helps return consistent damping at the rear left corner, which is important when the vehicle feels loose over bumps, reacts slowly in lane changes, or no longer tracks as firmly as it should. The part number SA1019 is also useful when matching OE-style replacement shocks by application and mounting style.

Common Issues This Part Can Address

• Excessive bouncing after bumps
• Reduced rear-end stability during cornering
• Delayed response in lane changes
• Uneven or inconsistent ride control at the rear left
• Loss of factory-like damping performance

Installation Notes and Tips

Verify rear left fitment on the 2013-2019 Cadillac ATS before installation and compare the mount style, compressed length, extended length, and stroke length to the removed unit. Inspect surrounding suspension components, including mounts and bushings, for wear that could affect ride quality after replacement. Because this is a shock and mount assembly, confirm the upper and lower mounting points align with the vehicle’s original configuration.

Quality Assurance

KYB supplies shocks and struts to new vehicle manufacturers, and Excel-G is produced on KYB OE assembly lines using OE-quality components. The SA1019 is calibrated to restore original designed performance for the Cadillac ATS rather than alter suspension behavior.