Titan part 107-501 is a major fluid section service kit used to completely rebuild the lower pump assembly on compatible PowrTwin and PowrLiner sprayers. This kit includes all necessary seals, packings, O‑rings, and gaskets to restore pumping efficiency and prevent fluid bypass. Replace when the sprayer loses pressure, leaks from the lower pump, or fails to prime.
| Part Number | 107-501 |
|---|---|
| Part Description | Major Fluid Section Service Kit |
| Brand | Titan |
| Fits |
|
| Condition | New |
The Titan 107-501 Major Fluid Section Service Kit contains all the seals, packings, O‑rings, and gaskets needed to completely rebuild the lower fluid section (pump cylinder) on compatible PowrTwin and PowrLiner sprayers. This comprehensive kit restores pumping efficiency, eliminates fluid bypass, and stops external leakage from the lower pump area.
Worn fluid section components cause pressure loss, erratic spray, difficulty priming, and fluid dripping from the pump. Rebuilding with a complete service kit ensures all wear items are replaced at once, extending pump life and reducing downtime.
| Rebuilds lower pump | Replaces all seals, packings, and O‑rings in the fluid section |
|---|---|
| Restores pressure | Eliminates internal bypass for consistent output pressure |
| Prevents leaks | Stops fluid from escaping the lower pump housing |
| Extends pump life | Comprehensive rebuild prevents premature component failure |
| Loss of pressure | Sprayer cannot reach or maintain set pressure |
|---|---|
| External leakage | Paint or solvent dripping from lower pump area |
| Difficulty priming | Pump will not pull material from the container |
| Excessive pump cycling | Motor runs constantly without building pressure |
| Visible seal damage | Cracked, hardened, or flattened packings/O‑rings |
Titan part 107-501 is a direct replacement major fluid section service kit for the following sprayers. Always confirm fitment using your equipment's parts diagram.
| Brand / Model | Components |
|---|---|
| PowrLiner 6950 | Major Fluid Section Service Kit |
| PowrLiner 4950 | Major Fluid Section Service Kit |
| PowrLiner 4900 | Major Fluid Section Service Kit |
| PowrLiner 4900XLT | Major Fluid Section Service Kit |
| PowrLiner 4000 | Major Fluid Section Service Kit |
| PowrLiner 4955 | Major Fluid Section Service Kit |
| PowrLiner 6955 | Major Fluid Section Service Kit |
| PowrLiner 8955 | Major Fluid Section Service Kit |
| PowrTwin 4900GH | Major Fluid Section Service Kit |
| PowrTwin 4900XL | Major Fluid Section Service Kit |
| PowrTwin 4500 | Major Fluid Section Service Kit |
| PowrTwin 3500 (50th Anniversary) | Major Fluid Section Service Kit |
| PowrTwin 4900 | Major Fluid Section Service Kit |
| PowrTwin 6900 | Major Fluid Section Service Kit |
| PowrTwin 8900 | Major Fluid Section Service Kit |
| PowrTwin 12000 Plus | Major Fluid Section Service Kit |
When rebuilding the fluid section, inspect these associated components for complete restoration.
Scratches or wear on the rod will quickly damage new packings. Replace if damaged.
Inspect for scoring, pitting, or corrosion that could compromise seal life.
Worn check valves can mimic fluid section failure and cause pressure loss.
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