0533558 Regulator Stem is a genuine OEM replacement component for Titan AirCoat sprayers. The regulator stem connects the adjustment knob to the pressure regulator valve, transmitting the operator's input to control fluid outlet pressure. A worn, bent, or corroded regulator stem can cause sticky adjustment, inaccurate pressure settings, or complete loss of regulation. Replacing the stem restores smooth, precise pressure control and reliable spray performance.
| Part Number | 0533558 |
|---|---|
| Part Description | Regulator Stem (pressure adjustment stem, includes o‑ring) |
| Brand | Titan |
| Fits | AirCoat 423 |
| Condition | New |
The Titan 0533558 Regulator Stem is a critical mechanical component of the pressure regulator assembly. It transmits rotational and linear motion from the adjustment knob to the regulator valve, converting the operator's input into precise pressure control. The stem typically includes a sealing o‑ring that prevents fluid from leaking past the adjustment mechanism.
Over time, regulator stems can become bent, corroded, or worn at the contact points. The sealing o‑ring can also harden or crack. Symptoms include stiff or sticky knob rotation, inability to maintain a set pressure, pressure drifting, or visible leakage around the adjustment stem. Replacing the stem and its o‑ring with OEM parts restores smooth, accurate pressure regulation.
| Pressure adjustment | Transmits knob rotation to regulator valve for pressure setting |
|---|---|
| Sealing | O‑ring prevents fluid leakage along the stem |
| Mechanical feel | Provides smooth, consistent resistance during adjustment |
| Sticky / stiff adjustment | Knob requires excessive force or feels gritty |
|---|---|
| Pressure drift | Set pressure changes without moving the knob |
| Fluid leakage | Material seeps from around the adjustment knob or stem |
| Bent or corroded stem | Visible damage or corrosion during disassembly |
Part 0533558 is the OEM regulator stem for the following Titan sprayer model. Always verify with your machine's parts diagram.
| Brand / Model | Component |
|---|---|
| AirCoat 423 | Regulator Stem |
When replacing the regulator stem, inspect or replace these related regulator components.
The knob attaches to the stem; inspect for cracks or stripped threads.
The spring works with the stem to set pressure; replace if fatigued.
If the stem is leaking, the diaphragm may also be worn; consider a full regulator rebuild.
Copyright © 2024 AlltitanParts.com - All Rights Reserved.
