ApplicationCompatible for Mercedes R-Class R320 2006-2010 (W251 )Compatible for Mercedes R-Class R350 2006-2010 (W251)Compatible for Mercedes R-Class R500 2006-2010 (W251)Compatible for Mercedes R-Class R63 AMG 2006-2010 (W251)Without Adaptive Damping System [ADS] - Rear,product without sensorReference OE/OEM Number251 320 06 31, 2513200631, 251 320 14 31, 2513201431, 251 320 22 31, 2513202231, 251 320 07 31, 2513200731, 251 320 10 31, 2513201031, 251 320 09 31, 2513200931, 251 320 18 31, 2513201831, 251 320 29 31, 2513202931, 251 320 31 31, 2513203131A251320303160, A251320303180, A251320303188, A2513201031, A251320103160, A251320103180, A251320103188, A2513201931, A251320193160, A251320193180, A251320193188, A2513203031Feature-2 years Warranty-for rear left or right side-Mates with OE Air Lines-Designed for Comfort Suspension-These air suspension bags are aftermarket ones. They will replace the original rear air springs.Note- These air suspension are aftermarket ones. They will replace the original  air shock. Please double confim the compatibility as well as the OEM number before purchasing- Instruction is not included. Professional installation is recommended- Contact us please for whatever we can helpSpecificationCondition: 100% brand newPlacement on Vehicle: Rear left/ rightQuantity: 1 piece (for rear left or right side)Warranty: 2 years warranty for any manufacture defectFeature:-Mates with OE Air Lines-Designed for Comfort Suspension-These air suspension bags are aftermarket ones. They will replace the original rear air springs.