9890104 is a hub cap that directly replaces original Titan part 704-355. It snaps over the wheel hub to protect the axle nut, cotter pin, and wheel bearings from dirt, moisture, and impact damage. The cap also provides a finished appearance and helps retain grease or lubricant inside the hub assembly.
| Part Number | 9890104 |
|---|---|
| Part Description | Hub Cap (Replaces Titan 704-355) |
| Brand | Titan |
| Fits |
|
| Condition | New |
The 9890104 Hub Cap is a direct replacement for original Titan part number 704-355. This snap‑on cap covers the wheel hub, protecting the axle nut, cotter pin, and bearing assembly from dirt, moisture, and accidental impact. It also helps retain grease inside the hub and gives the wheel a clean, finished look.
Over time, hub caps can become cracked, faded, or lost due to vibration or rough handling. A missing or damaged cap leaves the axle nut exposed to corrosion and debris, which can lead to bearing failure or a loose wheel. Replacing the cap is a simple, low‑cost maintenance step that extends the life of the wheel assembly.
| Contamination barrier | Keeps dirt, water, and paint overspray out of the hub |
|---|---|
| Grease retention | Helps prevent wheel bearing grease from leaking out |
| Impact protection | Shields axle nut and cotter pin from accidental strikes |
| Finished appearance | Provides a professional look and covers unsightly hardware |
| Cracked or broken cap | Visible splits, missing pieces, or cap no longer holds shape |
|---|---|
| Missing cap | Cap fell off during use; hub hardware is exposed |
| Loose fit | Cap rattles or falls off easily, no longer snaps securely |
| Severe fading / embrittlement | Plastic has become brittle from UV exposure or chemical attack |
9890104 replaces Titan 704-355 and fits the following Advantage, Impact, RentSpray, and SprayTech models. Always verify that your hub diameter matches before ordering.
| Brand / Model | Component |
|---|---|
| Advantage 400 | Hub cap (replaces 704-355) |
| Advantage 500 | Hub cap |
| Advantage 600 | Hub cap |
| Advantage 700 | Hub cap |
| Advantage 1100 | Hub cap |
| Impact 840 I and IA | Hub cap |
| Impact 400 | Hub cap |
| Impact 410 | Hub cap |
| Impact 440 | Hub cap |
| Impact 740 | Hub cap |
| Impact 740/840 | Hub cap |
| Impact 840 | Hub cap |
| RentSpray 500 | Hub cap |
| RentSpray 600 | Hub cap |
| SprayTech AirCoat New (0508074A) | Hub cap |
| SprayTech AirCoat (0508074) | Hub cap |
| SprayTech Airless Advantage EPX2155 | Hub cap |
| SprayTech Airless Advantage EPX2255 | Hub cap |
| SprayTech Airless EP2205 | Hub cap |
| SprayTech Airless EP2300 SE | Hub cap |
| SprayTech Airless EP2300 | Hub cap |
| SprayTech Airless EP2400 | Hub cap |
| SprayTech Airless EP2510 | Hub cap |
| SprayTech Airless EPX2155 | Hub cap |
| SprayTech Airless EPX2255 | Hub cap |
| SprayTech Airless EPX2305 | Hub cap |
| SprayTech Airless EPX2355 | Hub cap |
| SprayTech Airless EPX2405 | Hub cap |
| SprayTech Airless EPX2455 | Hub cap |
| SprayTech Airless EPX2505 | Hub cap |
| SprayTech Airless EPX2555 | Hub cap |
| SprayTech HVLP CS10000 | Hub cap |
| SprayTech HVLP PowerCart | Hub cap |
| SprayTech PowerCart | Hub cap |
When replacing a hub cap, inspect these associated wheel components for wear or damage.
Check that the nut is tight and the cotter pin is intact; replace if missing or corroded.
If the cap was missing for a long time, repack the bearings with fresh grease.
On some models, the spacer sits behind the hub; inspect for cracks or crushing.
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