FCS 99079 Air Suspension Shock - Rear

Rear Air Shock Absorber for GM SUVs

The FCS 99079 air shock absorber is a rear suspension replacement for select Cadillac, Chevrolet, and GMC full-size SUVs equipped with Magneride Ride Control air suspension struts. It is built around a 18.03-inch compressed length, 24.72-inch extended length, and 6.69-inch stroke to match the travel requirements of the application.

For shoppers searching for a rear air shock absorber for a 2015-2020 Cadillac Escalade, 2017-2020 Chevrolet Tahoe, or 2015-2020 GMC Yukon XL, FCS 99079 provides a direct-fit service part for the listed rear positions.

• Compressed length: 18.03 in.
• Extended length: 24.72 in.
• Stroke length: 6.69 in.
• Rear position application
• Fits Magneride Ride Control-equipped air suspension struts on listed vehicles
• FCS 99079 part number for application matching

Fitment Details

• Fits 2015-2020 Cadillac Escalade, rear, compatible with Magneride Ride Control-equipped air suspension struts.
• Fits 2015-2020 Cadillac Escalade ESV, rear, compatible with Magneride Ride Control-equipped air suspension struts.
• Fits 2017-2020 Chevrolet Tahoe, rear, compatible with Magneride Ride Control-equipped air suspension struts.
• Fits 2017-2020 GMC Yukon, rear, compatible with Magneride Ride Control-equipped air suspension struts.
• Fits 2015-2020 GMC Yukon XL, rear, compatible with Magneride Ride Control-equipped air suspension struts.
• Fits 2015-2016 Chevrolet Tahoe, rear, passive replacement for Magneride Ride Control models.
• Fits 2015-2016 GMC Yukon, rear, passive replacement for Magneride Ride Control models.

What This Part Helps Address

• Rear suspension sag on air-equipped SUVs
• Uneven ride height at the rear of the vehicle
• Loss of damping performance in the rear suspension
• Ride quality issues tied to worn air shock components
• Service replacement needs for Magneride Ride Control rear applications

Installation Notes

Verify the vehicle’s year, make, model, and rear suspension configuration before ordering. This FCS 99079 air shock absorber is listed for rear applications only and is specific to the vehicles shown above. Confirm the compressed length, extended length, and stroke length against the original unit during service to ensure proper suspension travel and fitment.

For 2015-2016 Chevrolet Tahoe and 2015-2016 GMC Yukon models, the listing notes passive replacement use for Magneride Ride Control models. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

FCS supplies suspension components for OE-style replacement applications, and the FCS 99079 is cataloged for the specified rear GM SUV fitments. Part number 99079 should be matched to the vehicle’s suspension system and rear position before installation.