Honda Air Filter Combo 100-012
Honda code 2107993/2893907/5252697/5281449
FITS MODELS:
Most GX340 (11HP) and GX390 (13hp) engines when equipped with cyclone air filter 
3 3/4'' (95.3mm) W x 4 3/8'' (111.1mm) L x 3 9/16'' (90.5mm) HT
Pre-filter included 
Uses ST4165851