Plastic Model Guides
Tamiya 10326 Needle: Replacing a 74510 or 74540 Needle
The Tamiya 10326 HG Trigger-Type Airbrush Needle is listed for airbrushes 74510 and 74540. It is a replacement for those specific HG models. The word “trigger” in another airbrush's name does not establish that this needle will fit.
Choose by the airbrush model
Start with the number of the airbrush you own. Needles can look very similar in a product photograph while belonging to different mechanisms. Tamiya distinguishes 10326 from the 10325 HG needle even though related HG airbrushes share a 0.3 mm nozzle specification.
| Replacement | Tamiya's listed airbrushes | Use this distinction |
|---|---|---|
| 10326 | 74510 and 74540 | HG trigger-type pair |
| 10325 | 74532 and 74537 | The other listed HG pair |
If the airbrush number is unclear, resolve that identification from its manual or packaging before ordering. Do not choose a needle by its apparent length in a scaled photograph or by the brand name alone.
Handle and store the replacement carefully
Tamiya supplies a protective tip cover and a clear plastic case. Keep those pieces for storing a spare; they help separate the fine point from other bench tools. Open the case over a clear surface where the needle cannot roll into a cluttered work area.
Use the instructions for your 74510 or 74540 when removing and installing the needle. Protect the point from sideways pressure, and do not force a replacement that does not seat as the manual describes.
Inspect the nozzle separately
A damaged needle and a damaged nozzle are different replacement decisions. Tamiya lists nozzle 10327 for both the 74510 and 74540, but it is a separate part. Check the nozzle's condition while following the airbrush's inspection procedure rather than assuming that a new needle resolves every spray problem.
Frequently asked questions
Does 10326 fit every Tamiya trigger airbrush?
No universal fit is stated. The supported list for this needle is 74510 and 74540; use the specified replacement for any other model.
Can I use 10325 instead?
10325 is listed for 74532 and 74537. It is not the listed replacement for the 74510/74540 pair.
Is this a complete airbrush repair kit?
No. It is a replacement needle with its protective packaging. A nozzle, cleaning tools and other service parts are separate decisions based on the airbrush and its condition.
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