Iwata airbrush parts for Hi-Line HP-TH models

Iwata airbrush parts for Hi-Line HP-TH models

Reliable performance starts with quality components, and Iwata’s precision-engineered replacement parts ensure your airbrush continues to deliver the smooth, consistent spray it was designed for. This collection brings together genuine Iwata airbrush parts specifically for the Hi-Line HP-TH series, giving artists, illustrators, modelers and custom painters the confidence that comes from using factory-grade components. Every part in this lineup is manufactured to exact tolerances, helping restore airflow control, paint delivery and trigger responsiveness.

Whether you need to replace a worn needle, upgrade a valve assembly, or fix a minor air leak, these components keep your HP-TH performing at professional standards. Regular maintenance using authentic Iwata parts not only improves reliability but also extends the life of your airbrush.

What’s in this collection

Each item supports a different part of the internal mechanism, giving you full control over repairs, adjustments and upgrades.

• Gravity-feed cups in multiple sizes for handling different paint volumes and improving workflow efficiency.
• High-precision needles (H5) designed to restore fine-line capability and help maintain accurate paint flow.
• Matching nozzles engineered to seat perfectly with minimal adjustment, reinforcing the tight seal needed for consistent spray patterns.
• Head base assemblies and caps that maintain correct air pressure and airflow direction throughout the body.
• Fan-pattern air caps that enable the HP-TH’s unique wide-spray functionality, ideal for background shading or large-area coverage.
• Chucking nuts, guide sets and packing screws created to stabilize internal components and reduce unwanted wobble or needle play.
• O-rings and PTFE seals that prevent air leakage, maintain internal pressure and help the airbrush operate efficiently under varying paint viscosities.
• Trigger assemblies, springs, cam sets and levers that restore smooth movement and precision control during long sessions.
• Valve rods, MAC valve assemblies and cup lids essential for fine pressure adjustment and paint containment.

These Iwata airbrush parts give users everything they need to maintain or restore factory-level performance. Each component fits seamlessly with the HP-TH line thanks to Iwata’s strict manufacturing standards and compatibility design.

Benefits, uses, and practical tips

Replacing parts at the right time is essential for keeping an airbrush responsive and predictable. Over time, needles may bend slightly, nozzles can develop micro fractures, and O-rings gradually lose elasticity. These changes affect spray consistency, line quality and general usability. Using original Iwata parts ensures that every replacement restores performance rather than introducing new issues.

One of the biggest advantages of working with the HP-TH series is its hybrid design, allowing users to work both in fine detail and in wide spray patterns. This makes maintaining each component even more important, since the internal airflow system must remain balanced. Fan caps, in particular, help unlock the HP-TH’s unique versatility and should be replaced if damaged.

Users working with thicker paints or metallics may want to check their packing screws and seals more frequently, as these materials can create buildup over time. A fresh seal prevents backflow and protects internal threads. Replacing chucking nuts and springs restores trigger sensitivity, which is especially valuable for artists who rely on subtle variations in pressure.

For best results, users should periodically inspect their Iwata airbrush parts and clean them thoroughly after each session. A clogged nozzle or worn needle is one of the most common causes of sputtering or inconsistent spray. Fortunately, the availability of standalone components in this collection makes it easy to refresh a single part without needing to replace the entire system.

Many professional artists keep extra needles and nozzles on hand so they can switch quickly if performance drops during a job. Similarly, spare O-rings and seals are helpful for preventing downtime, especially for users who paint frequently.

Genuine Iwata components also protect your investment. Using non-authentic or poorly machined parts can cause air leaks, misalignment, or internal wear that reduces the lifespan of your tool. With authentic Iwata replacements, you know each piece was designed specifically for your model and tested to strict quality standards.

SprayGunner ships these parts quickly so users can maintain optimal performance and minimize interruptions. Whether you are restoring an older HP-TH, upgrading specific mechanisms or simply replacing consumables, this collection provides everything needed to keep your airbrush in top shape.

Shop now at SprayGunner!