3111031 Swing Boom Cylinder Seal Kit fits Caterpillar 303.5E2 CR 304E 304E2 CR 305.5E2 CR

• Fits Caterpillar Cylinders 
• #303.5E2 CR Swing Boom Cylinder#3760171
• Serial#AC51-UP;CR61-UP;CR91-UP
• #304E Boom Cylinder#2737031
• Serial#TSR1-UP
• #304E Boom Cylinder#2843369
• Serial#SSC1-UP;TTN1-UP
• #304E Stick Cylinder#2737032
• Serial#TSR1-UP
• #304E Stick Cylinder#2840883
• Serial#SSC1-UP;TTN1-UP
• #304E Swing Boom Cylinder#3760171
• Serial#SSC1-UP;TSR1-UP;TTN1-UP
• #304E2 CR Boom Cylinder#2737031
• Serial#HC51-UP,KC41-UP
• #304E2 CR Boom Cylinder#2843369
• Serial#FC21-117,GC51-UP
• #3304E2 CR Boom Cylinder#5023494
• Serial#FC2118-UP,GC51-UP
• #304E2 CR Stick Cylinder#2737032
• Serial#HC51-UP,KC41-UP
• #304E2 CR Stick Cylinder#2840883
• Serial#FC21-UP,GC51-UP
• #304E2 CR Swing Boom Cylinder#3760171
• Serial#FC21-UP,GC51-UP,HC51-UP,KC41-UP
• #305.5E2 CR Bucket Cylinder#4610516
• Serial#FR51-UP;HRX1-UP;NC51-UP;SHW1-UP
• 50mm Rod 
• Bushing
• After market seal kit for Caterpillar equipment