Part number 0089518 is a genuine O-ring used in CapSpray AirCoat and SprayTech ED655 Plus airless sprayers. This precision-molded elastomeric seal is designed to create a leak‑tight seal between fluid passages, pump components, and fittings. It prevents fluid leakage, maintains pressure, and prevents air from entering the fluid stream. A worn or damaged O‑ring can cause drips, pressure loss, or erratic spray patterns. This genuine replacement O‑ring restores proper sealing and reliable operation.
| Part Number | 0089518 |
|---|---|
| Part Description | O-Ring |
| Brand | CapSpray, SprayTech |
| Fits | CapSpray AirCoat (Model No. 0508074); SprayTech ED655 Plus |
| Condition | New |
The 0089518 O-Ring is a genuine OEM sealing component designed for CapSpray AirCoat and SprayTech ED655 Plus airless sprayers. Manufactured from high-quality elastomeric material, this O‑ring provides a reliable seal between mating components such as pump housings, fluid passages, fittings, and filter assemblies. It is formulated to resist degradation from paints, solvents, and high-pressure fluids commonly encountered in sprayer applications.
O‑rings are critical for maintaining system pressure and preventing fluid leaks. Over time, exposure to chemicals, heat, and pressure cycling can cause O‑rings to harden, crack, compress permanently, or lose their elasticity. A failing O‑ring can result in external leaks, pressure loss, air ingestion (causing spitting), or contamination of the fluid stream. Replacing worn O‑rings with this genuine part restores a positive seal and ensures consistent sprayer performance.
| Leak prevention | Creates a positive seal between mating components |
|---|---|
| Pressure maintenance | Helps the system hold consistent operating pressure |
| Contamination barrier | Prevents air from entering and fluid from escaping |
| Visible leakage | Fluid seeps from sealed joints during operation |
|---|---|
| Hardening / cracking | O-ring feels brittle, shows cracks, or breaks during handling |
| Compression set | O-ring is permanently flattened and no longer springs back |
| After disassembly | Always replace O-rings when components are separated for service |
Part 0089518 is used in the following sprayer models. Always verify your machine's parts diagram to confirm correct fitment.
| Brand / Model | Component |
|---|---|
| CapSpray AirCoat (Model No. 0508074) | O-Ring |
| SprayTech ED655 Plus | O-Ring |
When replacing an O-ring, it's good practice to inspect these related components, as they often wear out or become damaged at the same time.
If the application uses backup rings to prevent O-ring extrusion, inspect them for damage and replace if necessary.
A clogged filter can increase back pressure and stress seals. Clean or replace the filter when servicing O-rings.
Inspect the grooves and sealing surfaces for nicks, scratches, or corrosion that could cause leaks with a new O-ring.
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