Tornado Washer Plain 1/4″ I.D. Stainless 18885

This is the 1/4 inch inside diameter plain washer in stainless — the one that goes with the 1/4-20 fasteners that make up most of the hardware on this machine. Part number 18885 is the genuine Tacony part.

Compatible Models for the Washer Plain 1/4″ I.D. Stainless

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

• Tornado 98168 12 Gallon Self Contained Carpet Extractor
• Tornado 98168 20″ Marathon 1200 Carpet Extractor (12 Gallon, 115V) — all series
• Fits many other Tacony machines — call 763-535-0770 and we will confirm fitment for your machine.

Because 1/4-20 is the commonest thread here, this is the washer most likely to be wanted and most likely to be substituted with whatever is in the drawer. The substitution that matters is not size but thickness and material: a thin fender-style washer of the same bore spreads load over a wider area but folds under a hard-torqued fastener, and a plated washer in a stainless joint sets up galvanic corrosion at the junction.

Stainless is specified because these positions stay wet. In a machine that carries detergent over its own fasteners all day, a plated washer is a sacrificial layer that lasts a season or two and then lets corrosion into the joint.

Check the old washer before reusing. Dished means over-torqued — a cupped washer contacts on its edge rather than its face and clamps on a ring instead of a surface. Pitting means it has lost section and therefore lost stiffness. Both are reasons to fit a new one while the joint is open.

Where the joint calls for a lock washer as well, the order matters: the plain washer goes against the material and the lock washer against the nut or head. Reversed, the lock washer bites into the material instead of into the fastener and does not lock.

Order several. This size is used throughout the machine and the labour of reaching a joint is always more than the washer costs.

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 18885 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 Tacony machines. Call 763-535-0770 with your model and serial number and we will confirm fitment before you order.

Can I substitute a washer of the same bore from the drawer?

Watch thickness and material. A thin fender-style washer of the same 1/4 inch bore folds under a hard-torqued fastener, and a plated washer in a stainless joint sets up galvanic corrosion at the junction. Stainless is specified here because these positions stay wet.

Which way round do a plain washer and a lock washer go?

Plain washer against the material, lock washer against the nut or the head. Reversed, the lock washer bites into the material instead of into the fastener and does not lock, which is a common reason a joint keeps loosening after a repair.

How do I order the Washer Plain 1/4″ I.D. Stainless (part# 18885) or get help?

You can add the Washer Plain 1/4″ I.D. Stainless (part# 18885) 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.