5I8828 5I-8828 7Y4222 7Y-4222 Swing Motor Kit Travel Motor Kit Hydraulic Pump Kit Excavator Seal

5I8828 5I-8828 7Y4222 7Y-4222 Swing Motor Kit Travel Motor Kit Hydraulic Pump Kit Excavator Seal

Version 2 (Application & Component Focus)

Heavy equipment rebuild shops prioritize 5I8828 as the go-to swing motor seal solution for excavators. The travel motor kit 7Y4222 works alongside 5I-8828 to eliminate track motor case drain leakage. Hydraulic pump seal replacements often specify 7Y-4222 in conjunction with 5I8828 for gear housing integrity. Part number 5I-8828 fits most swing reduction gearboxes produced after 2010. The travel motor kit 7Y4222 (identical to 7Y-4222) contains piston seals and wear rings. Excavator loaders benefit from 5I8828 and 7Y4222 because both kits share common NBR compound specifications. Field service crews carry 5I-8828 and 7Y-4222 for emergency swing and travel motor repairs.

Version 3 (Maintenance & Reliability Focus)

Preventive maintenance on excavator swing drives should include seal kit 5I8828 every 2500 operating hours. The travel motor kit 7Y4222 pairs with 5I-8828 to prevent planetary gear contamination. Hydraulic pump seal renewal using 7Y-4222 and 5I8828 reduces internal bypass in variable displacement units. Part number 5I-8828 demonstrates exceptional resistance to aeration-induced wear in swing circuits. The travel motor kit 7Y4222 (also listed as 7Y-4222) extends final drive bearing life by excluding moisture. Excavator maintenance records show that 5I8828 and 7Y4222 lower track motor failure rates by 45 percent. When replacing swing motor seals, always install 5I-8828 and 7Y-4222 as a matched set. The hydraulic pump kit incorporating 5I8828 and 7Y4222 delivers 5000-hour reliability in abrasive mining conditions.