Front ADS Suspension to Passive Strut & Coil Spring Conversion Kit for 2007-2013 Acura MDX

Suncore’s Front Active to Passive Suspension Conversion Kit Part 420MD-31-F for your MDX or ZDX is the perfect upgrade for an aged and failing air suspension system. Our air to coil spring conversion kits are brand new and built to give your MDX or ZDX a more reliable suspension system. FITMENT CHART 2007-2013 Acura MDX Please wait... 2010-2013 Acura ZDX Please wait... INTERCHANGE Acura: 51601-STX-355 Acura: 51401STXA52 Acura: 51406-STX-A52 Acura: 51401-STX-A52 Acura: 51601-SZN-A54 Acura: 51602-STX-355 Acura: 51601-STX-A55 Acura: 51406STXA52 Acura: 51601STX355 Acura: 51602-STX-365 Acura: 51601-STX-A56 Acura: 51601-STX-365 Acura: 51601STXA56 Acura: 51602-STX-A56 Acura: 51601-SZN-A53 Acura: 51601SZNA54 Acura: 51601SZNA53 Acura: 51602SZNA54 Acura: 51601STX365 Acura: 51602-SZN-A54 Acura: 51602-SZN-A53 Acura: 51605-STX-355 Acura: 51601STXA55 Acura: 51602STX355 Acura: 51602STX365 Acura: 51605-STX-A04 Acura: 51602-STX-A55 Acura: 51602STXA56 Acura: 51605-STX-A56 Acura: 51606-STX-A03 Acura: 51602STXA55 Acura: 51605-STX-A03 Acura: 51605STX365 Acura: 51606STXA03 Acura: 51602SZNA53 Acura: 51605-STX-A55 Acura: 51605STXA56 Acura: 51606STXA56 Acura: 51605-STX-365 Acura: 51605STX355 Acura: 51606-STX-A04 Acura: 51605STXA03 Acura: 51605-STX-A05 Acura: 51606-STX-A55 Acura: 51606STX355 Acura: 51606-STX-A56 Acura: 51605STXA04 Acura: 51606STXA55 Acura: 51606STX365 Acura: 51605STXA05 Acura: 51606STXA05 Acura: 51605STXA55 Acura: 51606-STX-355 Acura: 51606-STX-365 Acura: 51606STXA04 SPECIFICATIONS Product Grade Economy Special Note Engineered for a Superior Fit and Trouble-Free Installation   Suncore Industries was established in 2000 and have been a member of the Automotive Parts Rebuilders Association (APRA) ever since. Our mission began with rebuilding air suspension components and moved quickly into offering better solutions with conventional suspension conversion kits to give our customers the longevity they can rely on. The most common reason for an air strut failure is due to dry rotting of the air bag. This is something that happens over time, the air bag starts to deteriorate and causes leaks, when this happens the air bag can no longer hold air pressure. A leaking air bag can cause the strut it fits over to fail as well. The second factor of an air strut failure is the strut itself. The strut is pressurized with fluid, and if the strut begins to fail it will no longer have the same pressure to hold the vehicle. If this system begins to fail one visible sign will be that your vehicle will be lower than factory height. If Air Struts are not replaced on time, it will cause an Air Suspension Compressor Failure.