Titan part 253426 is a replacement union nut used to secure and seal fluid connections on the pump outlet or hose swivel. This nut restores leak‑free operation and prevents pressure loss on compatible PowrLiner models.
| Part Number | 253426 |
|---|---|
| Part Description | Union Nut (fluid connection nut) |
| Brand | Titan |
| Fits | PowrLiner 4500, 5500, 3500 72v, 3000, 3500s |
| Condition | New |
The Titan 253426 Union Nut is a replacement threaded nut used to secure union connections on the pump outlet, hose swivel, or filter housing. On compatible Titan PowrLiner stripers, this nut provides the clamping force needed to maintain a high‑pressure seal.
A stripped, cracked, or cross‑threaded union nut can cause fluid leaks, pressure drops, or complete loss of prime. Replacing the nut restores a reliable, leak‑free connection.
| Secures union joint | Clamps two halves of a union fitting together |
|---|---|
| Maintains seal | Compresses o‑ring or gasket to prevent leaks |
| Withstands pressure | Designed for high‑pressure paint/stripe systems |
| Stripped threads | Nut spins without tightening or loosening properly |
|---|---|
| Visible cracks / deformation | Stress fractures or out‑of‑round shape |
| Persistent leak | Tightening does not stop fluid seepage |
| Cross‑threading damage | Nut will not start cleanly on fitting |
Titan part 253426 is compatible with the following Titan PowrLiner models. Always verify fitment using the correct parts diagram for your exact model and revision.
| Brand / Model | Component |
|---|---|
| PowrLiner 3000 | Union nut (pump outlet / swivel) |
| PowrLiner 3500 | Union nut (pump outlet / swivel) |
| PowrLiner 3500s | Union nut (pump outlet / swivel) |
| PowrLiner 3500 72v | Union nut (pump outlet / swivel) |
| PowrLiner 4500 | Union nut (pump outlet / swivel) |
| PowrLiner 5500 | Union nut (pump outlet / swivel) |
A leaking union joint often involves more than just the nut. When replacing the union nut, these parts are commonly inspected or replaced at the same time.
Dried or nicked o‑ring is the most common cause of leaks – replace with the nut.
Damaged threads or sealing surface on the fitting requires full union replacement.
If the nut is damaged, the ferrule may also be deformed and need replacement.
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