Aftermarket Swing Motor Seal Kit for Hitachi ZX70

Express Free Shipping

3-Year Factory Warranty

90-Day Hassle-Free Returns

24/7 Dedicated Support

Material Composition	NBR (Nitrile), PTFE, TPU (Polyurethane)
Hardness	70-90 Shore A
Operating Temperature Range	-30°C to 120°C
Maximum Operating Pressure	35 MPa
Fluid Compatibility	Mineral Hydraulic Oil (HL, HLP, HVLP)
Kit Type	Swing Motor Seal Kit
Net Weight	0.8 kg
Package Dimensions	25 × 15 × 10 cm

Engine Part No.

Isuzu 4JG1
Yanmar 4TNV88

Fitment Vehicles

Hitachi ZX70
Hitachi ZX70LC
Hitachi ZX70-3
Hitachi ZX75US
Hitachi ZX80LCK
Hitachi ZX80SB-HCME
Hitachi EG40R
Hitachi EG70R

This swing motor seal kit is engineered to OEM specifications for the swing drive assembly on Hitachi ZX70 series hydraulic excavators. The kit includes all necessary dynamic and static seals required for a complete overhaul of the swing motor hydraulic circuit, including piston seals, rod seals, wear rings, O-rings, and backup rings.

Manufactured from premium acrylonitrile butadiene rubber (NBR), polytetrafluoroethylene (PTFE), and thermoplastic polyurethane (TPU) materials, the components provide high resistance to extrusion, abrasion, and thermal degradation in mineral-based hydraulic fluids. The kit restores sealing integrity to the swing motor reduction gearbox and hydraulic motor interface, eliminating internal leakage and ensuring consistent swing torque delivery.