Air Locker Parts YZLAL-01 ,20,AIR,arb,FOR,LINE,LOCKER,LONG,YZL,ZIP, 20 long air line for Zip Locker. 20' LONG AIR LINE FOR ZIP LOCKER The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. Air line 20' in length