Piston ring 1643200004 for Mercedes W164 W251 air suspension compressor cylinder.

Condition:New|Brand:Unbranded|Fitment Type:Direct Replacement|Gas Charged Shock:Yes|Interchange Part Number:For AMK Air Compressor Pump Repair Kits, W164 Gas spring shock absorber pump, W164 X164 W251 ML-Class GL-Class, W251 V251 R Class|Manufacturer Part Number:GL-Class, ML-Class, GLS-Class, GLE-Class, R-Class|Other Part Number:1643201204, 1643200204, 1643200504, 1643200904|Type:Air Suspension Compressor Repair Kit|Placement on Vehicle:Compressor|Product Type:Air suspension compressor repair kits|Superseded Part Number:GL320 GL350 GL450 ML350 ML450 ML63 AMG, R320 R350 R500 R63 AMG|Manufacturer Warranty:2 Year|UPC:Does not apply