8T1543 Hoist Cylinder Seal Kit fits Caterpillar 777-777D 

•  Fits Caterpillar Model
• #777, 777B Hoist Cylinder# 8J8924
• #777C, 777D Hoist Cylinder# 8J8924
• 5-1/2" Rod x 9-1/2" Bore 
• Includes Wiper, U Cup, Buffer and Piston seals
• After market seal kit for Caterpillar equipment