Washer 7CM004
$2.99
Genuine Tacony OEM washer (part# 7CM004) used in the Tornado Marathon SE 900 (Model 98170) and Powr-Flite Prowler PFX900S brush assembly. Outside diameter is the specification, not just the bore.
The Washer (part# 7CM004) is a genuine Tacony OEM replacement part from the brush assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the flat washer that spreads fastener load beneath a head or nut in the brush assembly It is also used on the Tornado Pac-Vac 6 Roam cordless backpack vacuum.
What the Washer does
People size washers by the hole and then take whatever fits, which is the wrong half of the part. The outside diameter is what decides how widely the clamping load is spread, and that is the whole reason the washer is there. Too small an outside diameter and the load is still concentrated near the fastener, which lets a head sink into soft material and quietly bleed off the torque the joint was assembled to.
When to replace the Washer (7CM004)
Replace it when it has dished or cupped, when a groove has been worn into it by a turning fastener head, or when corrosion has pitted the bearing faces. A washer that no longer lies flat on the bench has already yielded and will not seat properly again.
Washer 7CM004 — fitment and installation notes
Use the specified washer rather than the nearest one in the drawer, and fit it on the side the original occupied. Check the surface underneath for the beginnings of a dimple or a crack before reassembling, since that damage is the reason the joint kept loosening in the first place. Tacony builds the Tornado Marathon SE 900 and the Powr-Flite Prowler PFX900S on a single machine platform, so this component carries across both brands rather than belonging to either one. It is a shared Tacony component and may fit additional models beyond those listed — call us and we will confirm against your serial number.
Compatible Models for the Washer
- Tornado Pac-Vac 6 Roam — Models 93016, 93016B-1 and 93016C-1
- Tornado Marathon SE 900 — Model 98170
- Powr-Flite Prowler PFX900S
- Powr-Flite PFX900SG
Twin City Vacuum has been selling and servicing commercial floor-care equipment since 1956 from 5415 West Broadway, Crystal, MN 55428. We stock genuine Tacony parts and ship nationwide. Browse the full Tornado 98170 parts catalogue, or see the manufacturer at tornadovac.com.
Frequently Asked Questions
What does the Washer do on the Tornado Marathon SE 900?
People size washers by the hole and then take whatever fits, which is the wrong half of the part. The outside diameter is what decides how widely the clamping load is spread, and that is the whole reason the washer is there. Too small an outside diameter and the load is still concentrated near the fastener, which lets a head sink into soft material and quietly bleed off the torque the joint was assembled to.
How do I know if my Washer needs replacing?
Replace it when it has dished or cupped, when a groove has been worn into it by a turning fastener head, or when corrosion has pitted the bearing faces. A washer that no longer lies flat on the bench has already yielded and will not seat properly again.
What models is the Washer (part# 7CM004) compatible with?
The Tornado Pac-Vac 6 Roam (Models 93016, 93016B-1 and 93016C-1), the Tornado Cascade 20 and Cascade 20 OZ (98856, 98860), and the Tornado PFX 900S-T 98170 and Powr-Flite PFX900S and PFX900SG extractors.
How do I order the Washer (part# 7CM004) or get help?
You can add the Washer (part# 7CM004) 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.
