Description
Product Details
| Seal Kit | 3747261 |
| Brand | CAT |
| Cylinder Type / Application | Hydraulic Blade Cylinder Seal Kit |
| Rod Diameter | 80 mm (existing listing; verify against the exact cylinder group) |
| Bore Diameter | 120 mm (existing listing; verify against the exact cylinder group) |
| Product Type | Hydraulic Blade Cylinder Seal Kit |
| CAT-Compatible Models | Mini Hydraulic Excavators: 307D, 307C, 308D |
| Kit Components Listed by CAT | 095-1628 O-ring (5.7 × 109.6 mm); 095-1676 O-ring (3.1 × 119.4 mm); 096-1054 backup ring (80 mm ID); 099-0681 cylinder-head backup ring; 119-5445 plastic ring (120 mm OD); 143-8027 piston ring; 170-9843 buffer seal (79 mm ID); 170-9859 U-cup seal; 374-3669 blade-cylinder lip seal; 9X-3592 two-piece seal for 120 mm bore. |
| Fitment Verification | CAT states application is specific to the cylinder-group part number; confirm by machine serial number. |
Source: CAT Parts Store — 374-7261. Component sizes are seal/component dimensions, not a substitute for confirming the nominal cylinder dimensions.