Description
Product Details
| Seal Kit | 3460644 |
| Brand | CAT |
| Cylinder Part Number | 3030703 (existing listing; verify with cylinder group) |
| Rod Diameter | 82.5 mm (existing listing; verify with cylinder group) |
| Bore Diameter | 139.7 mm (existing listing; verify with cylinder group) |
| Product Type | Hydraulic Cylinder Seal Kit |
| Application / Fitment Status | CAT confirms 346-0644 is a Quick Coupler Cylinder Seal Kit for pin-grab/quick-coupler applications and lists the compatible excavators below. The existing cylinder reference 3030703 and 82.5/139.7 mm values are not confirmed by this public kit page; verify against the exact coupler-cylinder group before relying on them. |
| CAT-Compatible Models | Quick coupler / pin grab applications. Excavators: 349D2 L, 349D2, 352F-VG, 349E L, 345D L, 349F L, 349D L, 349E L VG, 349D, 336E L, 336D L, 374D L, 336E, 345D, 349E, 336D. |
| CAT Official Part Details | CAT identifies 346-0644 as a Coupler Cylinder Seal Kit. CAT describes kit component types including wiper seals, double-lip seals, wear rings, O-rings, backup rings and piston rings. The public page does not list individual included part numbers or dimensional specifications. |
Source: CAT Parts Store — 3460644. CAT recommends confirming fitment against the exact machine/cylinder configuration.

