Description
Product Details
| Seal Kit | 3634159 |
| Brand | CAT |
| Product Type | Hydraulic Cylinder Seal Kit — CAT standard-size kit. CAT states fitment is specific to the cylinder-group part number. |
| Application / Fitment Status | CAT confirms the kit family, compatible machine models and component list below. Exact cylinder group is required to confirm fitment; no nominal rod/bore dimensions were published on the public page. |
| Cylinder Type | Hydraulic Cylinder Seal Kit — CAT standard-size kit. CAT states fitment is specific to the cylinder-group part number. |
| CAT-Compatible Models | Truck: 769C; Quarry Truck: 771C; Tractor: 768C |
| Kit Components Listed by CAT | 4J-6557 rubber backup ring (210.01 mm ID); 8T-7694 piston guide (215.93 mm bore); 9M-5024 O-ring (3.53 × 209.14 mm); 9X-7366 snap-in single-lip wiper seal (16.89 mm thick); 433-5903 cylinder rod U-cup seal (195.58 mm OD). |
Source: CAT Parts Store — 3634159. CAT notes fitment of hydraulic cylinder seal kits is specific to the cylinder-group part number.

