Good quality and correct fit for STN-ST45990. The St45990 Cylinder installed smoothly and fixed the issue. I just took a little extra time to confirm compatibility.

Stone ST45990 Cylinder
| Part number: | ST45990 |
|---|---|
| SKU Number: | STN-ST45990 |
| Warranty: | 1 Year |
Discontinued
There is no available substitute by the factory.
This part is no longer supported. Sorry, we cannot help.
There is no known alternate available. We have no part available to offer you as a replacement.
Product Description
Product Features
Stone Toro ST45990 Cylinder Repair Part
If your machine isn’t running the way it should, replacing a worn component with Stone ST45990 Cylinder can help bring performance back quickly. With a proper fit approach, you spend less time troubleshooting and more time getting work done.
A focused replacement can save money, reduce waste, and extend the service life of your equipment. It helps you keep jobs on schedule without committing to a costly replacement. Confirm compatibility with your model before ordering, then install with standard tools and get back to work with confidence.
Customer Reviews (2)
5 stars
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Easy to use
Durability
Value for money
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Hannah R.
25 Aug, 2025Clara E.
10 Jun, 2025Super easy to install and saved me a service call. Thanks!
