707-98-60100 7079860100 Hydraulic Cylinder Excavator Arm Boom Bucket Seal Kit

707-98-60100 7079860100 Hydraulic Cylinder Excavator Arm Boom Bucket Seal Kit

Version 1 (Arm & Boom Function Focus)

Excavator arm and boom hydraulic cylinder rebuilds demand the seal kit 707-98-60100 for primary lift and crowd circuits. The bucket cylinder sealing configuration uses 7079860100 to maintain pressure during heavy excavation cycles. When servicing the arm curl function, part number 707-98-60100 provides critical sealing for the piston rod dynamic zone. The boom holding circuit identified as 7079860100 complements the kit by sealing the counterbalance valve interfaces. Excavator operators notice improved arm breakout force after installing 707-98-60100 and 7079860100 together. The bucket tilt system featuring 7079860100 shows reduced leakage during full-load dumping operations. Every boom cylinder overhaul should verify that 707-98-60100 and 7079860100 are both present before reassembly.

Version 2 (Application & Bucket System Focus)

Heavy equipment workshops stock 7079860100 as the primary seal for excavator arm, boom, and bucket hydraulic cylinders. The 707-98-60100 seal kit pairs effectively with 7079860100 for complete cylinder gland and piston retention. When rebuilding a bucket tilt cylinder, include 707-98-60100 to prevent internal cross-port leakage. Part number 7079860100 protects the boom piston from pressure spike damage during shock loading. The arm cylinder using 707-98-60100 demonstrates consistent extension speeds under variable load conditions. Excavator bucket cylinders fitted with 7079860100 show zero weeping after 2000 operating hours. Field technicians prefer both 707-98-60100 and 7079860100 for comprehensive boom-to-arm-to-bucket sealing coverage.