Part 9871105 is a replacement o-ring (replaces Titan 704-121) designed to fit numerous airless sprayer models from Advantage, Impact, RentSpray, SprayTech, and CapSpray. This o-ring provides a reliable seal in the fluid section or pump assembly, preventing leaks and maintaining pressure during operation. It restores proper sealing performance when the original o-ring becomes worn, cracked, or damaged.
| Part Number | 9871105 |
|---|---|
| Part Description | O-Ring (Replaces Titan 704-121) |
| Brand | Universal (Fits Multiple Brands) |
| Fits | Advantage, Impact, RentSpray, SprayTech, CapSpray (select models) |
| Condition | New |
The 9871105 O-Ring is a direct replacement for the original Titan 704-121 o-ring and is compatible with a wide range of airless sprayer models. This o-ring is a critical sealing component used in the fluid section or pump assembly to prevent fluid leaks and maintain consistent operating pressure.
Over time, o-rings can become hardened, cracked, or compressed, leading to leaks, pressure loss, and erratic spray performance. Replacing a worn o-ring with this high‑quality part restores a leak‑free seal and ensures reliable operation.
| Leak prevention | Creates a tight seal between mating parts to stop fluid leakage |
|---|---|
| Pressure maintenance | Helps maintain consistent pressure in the fluid system |
| Fluid compatibility | Designed for use with paints, solvents, and other common spraying fluids |
| Visible leaks | Fluid seeping from joints or fittings where the o-ring is installed |
|---|---|
| Hardened / cracked o-ring | O-ring feels brittle, shows cracks, or has taken a permanent set |
| After pump disassembly | Always replace o-rings when servicing the pump to ensure a proper seal |
| Loss of pressure | Sprayer cannot build or maintain pressure due to internal bypass |
This o-ring (part 9871105) replaces Titan 704-121 and is compatible with the following airless sprayer models. Always verify fitment by consulting your equipment's parts diagram.
| Sprayer Model | Application |
|---|---|
| Advantage 400, 500, 600 | O‑Ring (Titan 704‑121 replacement) |
| Impact Airless Sprayer 340, 400, 410, 440, 640 I and IA, 640 | O‑Ring (Titan 704‑121 replacement) |
| Impact X 410, 440, 540I | O‑Ring (Titan 704‑121 replacement) |
| RentSpray 400, 600 | O‑Ring (Titan 704‑121 replacement) |
| SprayTech Airless Advantage EPX2155 | O‑Ring (Titan 704‑121 replacement) |
| CapSpray AirCoat (Model No. 0508074) | O‑Ring (Titan 704‑121 replacement) |
| CapSpray AirCoat NEW (Model No. 0508074A) | O‑Ring (Titan 704‑121 replacement) |
| SprayTech Airless EP2105, EP2205, EPX2155, EPX2255, EPX2305, EPX2355 | O‑Ring (Titan 704‑121 replacement) |
When replacing the o-ring, it's good practice to inspect and consider replacing these related components to ensure complete sealing and performance.
Contains all necessary o-rings, packings, and seals for a complete pump overhaul.
Worn packings can cause loss of pressure and contribute to fluid bypass.
Valves with damaged seats or balls can also lead to poor performance.
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