704-273 is a replacement fitting used to connect fluid hoses or components on compatible Airless Sprayer and RentSpray models. It restores leak‑free connections and proper flow when the original fitting is damaged, stripped, or corroded.
| Part Number | 704-273 |
|---|---|
| Part Description | Fitting |
| Brand | Airless Sprayer / RentSpray |
| Fits | Airless Sprayer 440I, 740I, 740IX, 640I; RentSpray Plus (Model No 766-3000, 766-3010, 766-3015) |
| Condition | New |
The 704-273 Fitting is an OEM replacement hydraulic fitting used on compatible Airless Sprayer 440I, 740I, 740IX, 640I and RentSpray Plus units (models 766‑3000, 766‑3010, 766‑3015). It is typically used to connect high‑pressure hoses, swivels, or fluid passages within the sprayer's hydraulic system.
Over time, fittings can become corroded, have their threads stripped, or develop leaks from seat damage. A leaking or restricted fitting reduces pressure, wastes material, and creates a safety hazard. Replacing a damaged fitting with the 704‑273 restores a secure, leak‑free connection and proper fluid flow.
| Fluid connection | Joins hoses, tubes, or components in the hydraulic circuit |
|---|---|
| Leak prevention | Provides a sealed interface to contain high‑pressure paint |
| Flow direction | May include an elbow, tee, or reducer to route fluid |
| Stripped threads | Fitting will not tighten or spins freely |
|---|---|
| Corrosion / rust | Heavy pitting or deterioration of metal |
| Leaking at threads or seat | Paint seeps past threads or sealing surface |
| Cracked or deformed | Visible damage from over‑tightening or impact |
Part 704-273 is compatible with the following models. Always verify with your machine's parts diagram before ordering.
| Brand / Model | Component |
|---|---|
| Airless Sprayer 440I | Replacement fitting (hose/port connection) |
| Airless Sprayer 740I | Replacement fitting |
| Airless Sprayer 740IX | Replacement fitting |
| Airless Sprayer 640I | Replacement fitting |
| RentSpray Plus 766-3000 | Replacement fitting |
| RentSpray Plus 766-3010 | Replacement fitting |
| RentSpray Plus 766-3015 | Replacement fitting |
When replacing a fitting, these related components are often inspected or replaced at the same time.
Inspect the hose end for damage; replace if the ferrule is loose or cracked.
Swivels that leak or bind may need replacement alongside the fitting.
Always use fresh PTFE tape or pipe dope rated for paint solvents.
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