Part number 704-109 is an O-Ring used in various Airless Sprayers, Advantage, Impact, PowrLiner, and RentSpray models. This precision elastomeric seal provides a leak‑tight seal between mating components in fluid sections, pumps, and connections. Replacing a worn, hardened, or damaged O‑ring restores proper sealing, prevents fluid leaks, and maintains system pressure.
| Part Number | 704-109 |
|---|---|
| Part Description | O-Ring |
| Brand | Airless Sprayer, Advantage, Impact, PowrLiner, RentSpray |
| Fits | Airless Sprayer 330, 340, 440 XC, 440 I, 440 IX, 550 XC, 550 IX, 640 I, 640 IX, 690 GXC, 740 I, 740 IX; Advantage 400, 500, 600; Impact 340, 400, 410, 440, 640 I and IA, 640, X 410, X440, X540 I; PowrLiner 2800M, 1800M; RentSpray 450, 600, 600 Impact, RentSpray Plus |
| Condition | New |
The 704-109 O-Ring is a critical sealing component used in a wide range of Airless Sprayers, Advantage, Impact, PowrLiner, and RentSpray equipment. It is designed to fit precisely into grooves or between mating surfaces, compressing to form a leak‑tight seal that prevents fluid or air from escaping.
O‑rings are used throughout these machines in pump cylinders, valve assemblies, hose connections, and manifold seals. They are manufactured from materials chosen for their resistance to paints, solvents, and pressure. Over time, O‑rings can harden, crack, or take a compression set, leading to leaks, loss of pressure, and poor performance. Replacing a worn O‑ring restores system integrity and ensures reliable operation.
| Fluid sealing | Prevents paint, water, or hydraulic fluid from leaking |
|---|---|
| Pressure retention | Maintains system pressure by blocking bypass paths |
| Contaminant exclusion | Keeps dirt and debris out of sensitive areas |
| Visible leaks | Fluid seeping from a sealed joint |
|---|---|
| Hardening / cracking | O‑ring feels brittle or shows cracks |
| Compression set | O‑ring no longer returns to original shape |
| Disassembly | Always replace O‑rings when servicing related components |
Part number 704-109 is compatible with the following models. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Brand / Model | Component |
|---|---|
| Airless Sprayer 330 | O-Ring |
| Airless Sprayer 340 | O-Ring |
| Airless Sprayer 440 XC | O-Ring |
| Airless Sprayer 440 I | O-Ring |
| Airless Sprayer 440 IX | O-Ring |
| Airless Sprayer 550 XC | O-Ring |
| Airless Sprayer 550 IX | O-Ring |
| Airless Sprayer 640 I | O-Ring |
| Airless Sprayer 640 IX | O-Ring |
| Airless Sprayer 690 GXC | O-Ring |
| Airless Sprayer 740 I | O-Ring |
| Airless Sprayer 740 IX | O-Ring |
| Advantage 400 | O-Ring |
| Advantage 500 | O-Ring |
| Advantage 600 | O-Ring |
| Impact 340 | O-Ring |
| Impact 400 | O-Ring |
| Impact 410 | O-Ring |
| Impact 440 | O-Ring |
| Impact 640 I and IA | O-Ring |
| Impact 640 | O-Ring |
| Impact X 410 | O-Ring |
| Impact X440 | O-Ring |
| Impact X540 I | O-Ring |
| PowrLiner 2800M | O-Ring |
| PowrLiner 1800M | O-Ring |
| RentSpray 450 | O-Ring |
| RentSpray 600 | O-Ring |
| RentSpray 600 Impact | O-Ring |
| RentSpray Plus | O-Ring |
When replacing an O‑ring, these components are often inspected or replaced at the same time to ensure complete sealing integrity.
Used with O‑rings in high‑pressure applications; inspect for damage.
Other seals in the same assembly may also be worn; consider replacing them.
Inspect grooves and sealing faces for nicks or corrosion.
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