Small Dome X9033

The Small Dome (part# X9033) is a genuine Tacony OEM replacement part from the recovery and solution tank assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the smaller clear dome cover on the recovery tank.

What the Small Dome does

The Small Dome closes the secondary opening on the recovery tank and, because it is translucent, lets the operator see the dirty-water level without stopping to open the machine. It seals against its own gasket and forms part of the same vacuum circuit as the large dome, so its condition affects lift just as much.

When to replace the Small Dome (X9033)

Replace it when it is cracked, crazed to the point you can no longer judge the water level, or no longer seating flat. Crazing is normal ageing accelerated by solvents; cracks usually start at the rim where the dome is clamped. Any crack is a vacuum leak.

Small Dome X9033 — fitment and installation notes

Fit with a sound gasket and clamp evenly. If you have replaced the large dome for poor recovery and the problem persists, check this one — it is smaller, easier to overlook, and leaks exactly the same way. 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 Small Dome

• 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 Small Dome do on the Tornado Marathon SE 900?

The Small Dome closes the secondary opening on the recovery tank and, because it is translucent, lets the operator see the dirty-water level without stopping to open the machine. It seals against its own gasket and forms part of the same vacuum circuit as the large dome, so its condition affects lift just as much.

How do I know if my Small Dome needs replacing?

Replace it when it is cracked, crazed to the point you can no longer judge the water level, or no longer seating flat. Crazing is normal ageing accelerated by solvents; cracks usually start at the rim where the dome is clamped. Any crack is a vacuum leak.

What models is the Small Dome (part# X9033) compatible with?

The Tornado Marathon SE 900 (Model 98170), the Powr-Flite Prowler PFX900S and the PFX900SG. It is a shared Tacony part and may fit further models; call us to confirm.

How do I order the Small Dome (part# X9033) or get help?

You can add the Small Dome (part# X9033) 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.