Dump Valve Gasket PX14A
$3.99
Genuine Tacony OEM Dump Valve Gasket (part# PX14A) for the Tornado Marathon SE 900 (Model 98170) and Powr-Flite Prowler PFX900S. Seals the recovery-tank dump valve so waste water drains only when opened and the tank holds vacuum while closed.
The Dump Valve Gasket (part# PX14A) 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 seal that closes the recovery tank dump valve against leakage.
What the Dump Valve Gasket does
The dump valve gasket seals the drain valve on the recovery tank. When the valve is shut it must hold dirty water under the weight of a full tank and under vacuum; when opened it must let the tank empty cleanly. It is the only thing standing between a full recovery tank and the customer’s floor.
When to replace the Dump Valve Gasket (PX14A)
Replace it as soon as the valve drips with the handle closed, or when the rubber has hardened, split or taken a permanent set. A dump valve that needs extra force to seal is telling you the gasket has gone hard — forcing it will crack the valve body, which is a far bigger repair.
Dump Valve Gasket PX14A — fitment and installation notes
Clean the valve seat thoroughly before fitting; grit trapped on the seat will hold the new gasket open and reproduce the drip. Do not lubricate with petroleum grease, which swells the rubber. 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 Dump Valve Gasket
- 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 Dump Valve Gasket do on the Tornado Marathon SE 900?
The dump valve gasket seals the drain valve on the recovery tank. When the valve is shut it must hold dirty water under the weight of a full tank and under vacuum; when opened it must let the tank empty cleanly. It is the only thing standing between a full recovery tank and the customer’s floor.
How do I know if my Dump Valve Gasket needs replacing?
Replace it as soon as the valve drips with the handle closed, or when the rubber has hardened, split or taken a permanent set. A dump valve that needs extra force to seal is telling you the gasket has gone hard — forcing it will crack the valve body, which is a far bigger repair.
What models is the Dump Valve Gasket (part# PX14A) 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 Dump Valve Gasket (part# PX14A) or get help?
You can add the Dump Valve Gasket (part# PX14A) 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.





