2478996 1446305050 1864391 Arm Boom Bucket Hydraulic Excavator Seal Kit Lift Tift Steering Loader Kit

2478996 1446305050 1864391 Arm Boom Bucket Hydraulic Excavator Seal Kit Lift Tift Steering Loader Kit

Version 1 (Component & Function Focus)

Excavator arm boom bucket hydraulic systems rely on seal kit 2478996 for consistent lifting and tilting performance. The loader steering cylinder benefits from 1446305050, which provides positive sealing action under high cycle loads. When rebuilding an excavator boom cylinder, always include 1864391 to address both rod and piston sealing requirements. Kit 2478996 contains backup rings and wipers specifically sized for arm and bucket circuits. The hydraulic loader kit with 1446305050 reduces internal cross-port leakage during tilt operations. For steering loader applications, 1864391 complements the main seal by protecting against extrusion gaps. Excavator technicians prefer 2478996 because it covers three common bore diameters in one package. Arm cylinder drift often disappears after installing 1446305050 and 1864391 together. The lift tilt function becomes smoother when 2478996 replaces worn elastomer components.

Version 2 (Application & Compatibility Focus)

Heavy duty excavator loader repairs demand the comprehensive seal assortment of 2478996 for arm and boom cylinders. Part number 1446305050 handles bucket tilt steering circuits with exceptional pressure retention capability. The 1864391 hydraulic seal works alongside 2478996 to seal both static flange joints and dynamic rod surfaces. When servicing an excavator's main lift cylinder, 1446305050 ensures zero weeping at the gland nut interface. Loader steering functions improve after fitting 1864391 into the end cap groove. The arm bucket assembly requires 2478996 to maintain synchronized movement during simultaneous lift and tilt actions. Excavator owners ordering 1446305050 receive matched seals for both extend and retract ports. Every 1864391 element fits standard metric grooves found in European loader models. Complete the rebuild with 2478996 to restore original factory tolerances.