Unity 13-517000 Air Suspension Shock - Rear

OEM-Style Rear Air Shock for Mercedes-Benz

Unity 13-517000 is an OEM-style electronic air suspension shock absorber for rear suspension applications on select Mercedes-Benz SUVs. It is built to match OEM collapsed length, extended length, and shock stroke specifications for direct replacement service.

Key Features

• OEM-style electronic air suspension shock absorber
• Rear position replacement for select Mercedes-Benz models
• Collapsed length: OEM
• Extended length: OEM
• Shock stroke: OEM
• Designed for vehicles with Adaptive Damping Suspension (ADS)
• Part number: 13-517000

Product Details

The Unity OEM Style Electronic Air Suspension Shock Absorber line is focused on suspension replacement parts that follow original equipment dimensions and application coverage. Unity draws on more than 40 years in the automotive aftermarket and offers broad suspension coverage across thousands of SKUs. This rear shock absorber is listed for 2012-2015 Mercedes-Benz ML350, ML550, and ML63 AMG; 2013-2016 Mercedes-Benz GL350, GL450, GL550, and GL63 AMG; and 2016-2017 Mercedes-Benz GLE300d, GLE350, and GLE400 with Adaptive Damping Suspension (ADS). Part number 13-517000 is also referenced for related OE-style replacement needs in these applications.

This part cross-references Arnott Industries SK-3268 and Focus Auto Parts 99059 for the same application.

Common Replacement Reasons

• Rear suspension ride height concerns
• Loss of damping control or inconsistent rear ride quality
• Air shock leakage or electronic shock failure
• Warning lights related to the adaptive suspension system
• Excessive bouncing, sagging, or uneven rear stance

Installation Notes

Verify the vehicle is equipped with rear Adaptive Damping Suspension (ADS) before ordering. Confirm the original shock dimensions and connector style against the OE unit, since this replacement follows OEM length and stroke specifications. Professional installation and system inspection are recommended after replacement to confirm proper suspension operation and fault-code clearing.

Quality Assurance

Unity Automotive manufactures aftermarket suspension parts with a focus on OE-style fit and application coverage. The brand’s long-standing suspension specialization supports consistent replacement quality for vehicles such as the Mercedes-Benz ML, GL, and GLE platforms.