Part number 779-086 is an end cap designed to seal or close off the open end of a tube, manifold, or housing on compatible PowrLiner equipment. This component prevents fluid leakage, excludes contaminants, and maintains system pressure in critical fluid passages. Replacing a cracked, damaged, or missing end cap restores system integrity and prevents costly fluid loss or component damage.
| Part Number | 779-086 |
|---|---|
| Part Description | End Cap |
| Brand | PowrLiner |
| Fits |
|
| Condition | New |
The 779-086 End Cap is a sealing component used to close off fluid passages, tube ends, or manifold ports on compatible PowrLiner line stripers. It ensures that pressurized fluid is contained within the intended flow path, preventing leaks that could lead to pressure loss, messy operation, or hazardous conditions.
End caps are subject to stress from pressure cycles, chemical exposure, and vibration. A cracked, warped, or missing end cap can cause fluid leakage, air ingestion, and loss of system pressure. Replacing the end cap restores a leak‑free seal and maintains the integrity of the fluid delivery system.
| Sealing | Closes off tube ends and manifold ports to prevent leaks |
|---|---|
| Pressure retention | Maintains system pressure by containing fluid |
| Contaminant exclusion | Prevents dirt and debris from entering fluid passages |
| Cracks / breakage | Visible damage compromising the seal |
|---|---|
| Fluid leaks | Seepage around the end cap during operation |
| Warping / deformation | End cap no longer fits snugly or seals properly |
| Missing end cap | Cap absent, leaving the fluid path open |
Part number 779-086 is compatible with the following PowrLiner models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Brand / Series | Models |
|---|---|
| PowrLiner | 4500, 2800, 4900 XLT, 4900, 4950 |
| 6900 XLT SP, 6900 XLT, 6950 | |
| 8900 XLT SP, 8900 XLT, 8900, 3000 | |
| 3500 (Suffixed Unit), 3500S, 3500 72v (Honda GXE) | |
| 4955, 6955, 8955, 5500 |
End cap issues may involve associated components. When servicing the end cap, these parts are commonly inspected or replaced at the same time.
Many end caps use integrated seals; inspect and replace if worn.
Check for cracks or damage at the sealing surface.
Hardware that secures the end cap may be corroded; replace if necessary.
Copyright © 2024 AlltitanParts.com - All Rights Reserved.
