ZD50×80×18 Double Spring Combined Skeleton Oil Seal Precision Direct-Fit Rectangular Structure For Loader Gearbox Quick Installation Seal Describe: Designed for maintenance teams who demand zero-modification drop-in replacement, this ZD50×80×18 double spring skeleton oil seal is manufactured to exact OEM dimensional tolerances for CLG816, CLG818, LW160 and LW180 loader gearbox transmission assemblies. Every seal undergoes precision CNC machining of the outer metal case with a