Tornado Washer Plain #10 I.D. Stainless 17850

The #10 washer is the small one — sized for the #10-24 and #10-32 screws that hold panels, covers and light brackets on this machine. Part number 17850 is the genuine OEM plain washer in stainless. It also fits the Tornado 98166 20″ Marathon 800 carpet extractor (8 Gallon, 115V). It also fits the Tornado 98167 20″ Marathon 800 carpet extractor (8 Gallon, 230V). It also fits the Tornado PS Spotter 98220 and the 230-volt PS8221 98221 professional spotter. It also fits the Tornado PS8226 Spotter 98226, the 230-volt build of the deluxe PS Series spotter.

Compatible Models for the Washer Plain #10 I.D. Stainless

This part is shared across a wide run of machines. On the Marathon 1200 family it is fitted to:

• Tornado PS Spotter 98220 — PS Series professional spotter, 115V
• Tornado PS8225 Spotter 98225 — the deluxe PS Series spotter, Series C and Series D & E
• Tornado PS8221 Spotter 98221 — the 230-volt build of the same spotter
• Tornado 98168 12 Gallon Self Contained Carpet Extractor
• Tornado 98168 20″ Marathon 1200 Carpet Extractor (12 Gallon, 115V) — all series
• Tornado 98169 20″ Marathon 1200 Carpet Extractor (12 Gallon, 230V)
• Fits many other machines — call 763-535-0770 and we will confirm fitment for your machine.
• Tornado 98166 20″ Marathon 800 Carpet Extractor (8 Gallon, 115V)
• Tornado 98167 20″ Marathon 800 (8 Gallon, 230V)
• Tornado PS8226 Spotter 98226 — the 230-volt build of the deluxe PS Series spotter, Series D & E

The deluxe PS8225 Spotter 98225 uses this washer in quantity too — eight of them on the main assembly in its Series D & E book, and it is listed in the Series C book as well.

Small washers matter more than large ones in one specific way: they are usually under small screws, and small screws are the ones going into thin material or into plastic. That is exactly where a head pulled directly against the surface digs a crater, and once the crater is there the screw will never stay tight again no matter how often it is retightened.

They are also the ones most often left out. A #10 washer is easy to lose on a bench, easy to overlook during reassembly, and small enough that nobody notices its absence until a panel starts rattling. If you are diagnosing a fixing that will not stay tight after a previous repair, count what should be in the stack before replacing anything bigger.

Fit matters as much here as at larger sizes. A washer sized for 1/4 inch on a #10 screw contacts the head on a narrow ring at the edge of its bore and does very little, while looking entirely plausible. Measure the bore rather than matching by eye.

Stainless is specified because these positions are wet. Do not mix a plated washer into a stainless joint — dissimilar metals in detergent corrode galvanically at the junction.

Replace if dished or pitted, and order a handful rather than one. At this size they are the definition of a part you should not have to wait for.

Browse every assembly for this machine on the Tornado 98168 Marathon 1200 parts hub, and see the manufacturer’s range at tornadovac.com.

Frequently Asked Questions

What machines does the washer 17850 fit?

It is fitted to the Tornado 98168 12 Gallon Self Contained carpet extractor and the 98168 20″ Marathon 1200 in all series, and it is shared across many other machines. Call 763-535-0770 with your model and serial number and we will confirm fitment before you order It also fits the Tornado 98167 Marathon 800 (8 Gallon, 230V).

Why does a small washer matter?

Because small screws usually go into thin material or plastic, and that is exactly where a head pulled directly against the surface digs a crater. Once the crater is there the screw will not stay tight again however often it is retightened.

Can I use a 1/4 inch washer on a #10 screw?

No. A washer sized for 1/4 inch on a #10 screw contacts the head on a narrow ring at the edge of its bore and does almost nothing, while looking entirely plausible in place. Measure the bore of the old one rather than matching by eye.

How do I order the Washer Plain #10 I.D. Stainless (part# 17850) or get help?

You can add the Washer Plain #10 I.D. Stainless (part# 17850) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado equipment since 1956 and can help confirm the right part for your machine.

Questions? Call us at 763-535-0770 or visit us at 5415 West Broadway, Crystal, MN 55428.