Description
Product Details
| Seal Kit | 3752813 |
| Brand | CAT |
| Cylinder Type / Application | Lift Cylinder (a specialist aftermarket catalog lists kit 375-2813 for CAT 420E and 430E; verify the exact cylinder group) |
| Rod Diameter | 50 mm nominal reference; CAT lists a 50 mm rod buffer seal and a 49.27 mm ID rod U-cup seal. Confirm the nominal rod against the cylinder group. |
| Bore Diameter | Not specified in CAT's public kit listing. The previously listed 85 mm nominal bore is not retained without cylinder-group confirmation. |
| Product Type | Hydraulic Cylinder Seal Kit |
| CAT-Compatible Models | 420E, 430E Backhoe Loaders |
| Kit Components Listed by CAT | 167-2303 cylinder rod U-cup seal (49.27 mm ID); 233-0619 double-lip wiper seal (47.89 mm ID); 1H-7339 O-ring; 141-0709 rod guide (1.5 mm thick); 2H-3931 O-ring (3.53 × 82.14 mm, 75A NBR); 223-3502 piston guide; 161-7149 piston seal (69.46 mm ID); 167-2183 rod buffer seal (50 mm); 8J-2574 backup ring (75.92 mm ID) |
| Fitment Verification | CAT states seal-kit application is specific to a cylinder-group part number. Confirm the exact cylinder group and machine serial number before ordering. |
The CAT public listing does not specify a nominal cylinder bore for kit 375-2813. The bore value is intentionally left unconfirmed rather than inferred from individual seal dimensions.

