Individual hose record
Excavator · Caterpillar · CAT®319D · Grease Lines
Hose repair card
Caterpillar CAT®319DPipe No. 13 · Part 351-4611
Left fitting美制锥形外螺纹30°内锥SAE 30° · 0°View real fitting photos ↗
Right fitting美制锥形外螺纹SAE · 0°View real fitting photos ↗
RouteRight boom-cylinder grease line
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Same system
Diagram Pipe No. 12
Installation route: Left boom-cylinder grease lineOriginal Chinese: 左大臂油缸黄油管
Diagram Pipe No. 8
Installation route: Right boom-cylinder grease lineOriginal Chinese: 右大臂油缸黄油管
Diagram Pipe No. 7
Installation route: Left boom-cylinder grease lineOriginal Chinese: 左大臂油缸黄油管
Workshop guide
For Caterpillar CAT®319D Grease Lines, identify the exact model and hydraulic system on the machine first. A part number or diagram pipe number is the fastest way to narrow a replacement hose; if neither is visible, compare the installation route and the existing hose.
Check whether a listed dimension is finished assembly length, hose-only length, or cut length. These are not interchangeable. Confirm hose specification and pressure rating, then compare both ends separately: thread, sealing seat, size, angle, and orientation.
Where an installation drawing or manual figure is available, match its callout to the part number and physical route. A hydraulic circuit diagram explains connections but does not show the exact routing of a hose on the machine. Take the old hose or clear end-fitting photographs to the workshop if any dimension is missing.
For reference only. Confirm the actual hose before fabrication.
