Description
Product Details
| Seal Kit | 3387156 |
| Brand | CAT |
| Cylinder Part Number | 2851170 |
| Rod Diameter | 38.1 mm (existing listing; verify with cylinder group) |
| Bore Diameter | 76.2 mm (existing listing; verify with cylinder group) |
| Product Type | Hydraulic Cylinder Seal Kit |
| Application / Fitment Status | Exact cylinder type/position and compatible machine models are not yet confirmed. Verify by machine serial number before ordering. |
| CAT Official Catalog Identity | CAT confirms 338-7156 is a Hydraulic Cylinder Seal Kit — Standard Size for complete hydraulic-cylinder resealing. Fitment is specific to a cylinder-group part number. |
| CAT Official Part Details | CAT-listed kit components: 167-2186 buffer seal assembly (1); 175-7896 O-ring (1); 223-3353 piston wear ring for 76.20 mm bore (1); 226-8202 double-lip wiper seal, 36.02 mm ID (1); 439-2696 plastic U-cap seal (1); 4T-6780 plastic ring, 38.10 mm ID (1); 6J-1972 two-piece seal for 76 mm bore (1); 6J-2680 O-ring (1); 6J-5731 rubber backup ring, 69.61 mm ID (1). |
| CAT-Compatible Models | Backhoe loaders: 416E, 416F, 432E, 420E, 442E, 434E, 422E, 444E, 428E, 420F2, 430F2, 444F2, 416F2, 415F2, 420F, 430F. Mobile hydraulic power unit: 420F2. |
Source: CAT Parts Store — 3387156. Confirm fitment against the exact machine serial number and cylinder-group part number.