SPECIFICATIONS Caterpillar Buffer Seal (8C9138) 8C-9138:

• Seal form: Type B
• Stem diameter (in): 2.37
• Groove Width - A (+/- 0.005 in) (in): 3.02
• Groove Diameter - H (± 0.005 in) (in): 0.22

COMPATIBLE MODELS FOR PART NUMBER 8C-9138:

• OFF-HIGHWAY TRUCKS: 768C, 769C, 771C
• BACKHOE LOADER: 428B, 438B