Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT SW139
$10.99
Genuine Tacony OEM 90 degree brass street elbow, 3/8 inch male pipe thread to 1/2 inch female pipe thread (part# SW139), used in the Tornado Marathon SE 900 (Model 98170) and Powr-Flite Prowler PFX900S solution plumbing.
The Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT (part# SW139) is a genuine Tacony OEM replacement part from the chassis assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the brass 90 degree elbow that turns a plumbing run and steps between a 3/8 inch male and a 1/2 inch female pipe thread.
What the Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT does
A street elbow carries a male thread on one end and a female on the other, so it makes a turn without needing a nipple to get there. That saves a joint, and every joint you do not make is a joint that cannot leak. Brass is used because it seals reliably against a pipe thread and survives years of cleaning chemistry without the thread swelling or going brittle.
When to replace the Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT (SW139)
Replace it when the threads are damaged, cross-threaded, or have been chased so many times they no longer seal, and when the body shows a crack or has been distorted by a wrench. Repeated leaks at a fitting that has been resealed several times point at the fitting, not the tape.
Brass Street Elbow SW139 — fitment and installation notes
Seal the thread with the correct tape or paste wound in the direction of the thread, and start the tape a thread or two back from the end so nothing gets pushed into the flow path. Tighten to a firm seat and stop; leaning on a brass fitting to cure a leak usually just splits whatever it is threaded into. 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 Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT
- 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 Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT do on the Tornado Marathon SE 900?
A street elbow carries a male thread on one end and a female on the other, so it makes a turn without needing a nipple to get there. That saves a joint, and every joint you do not make is a joint that cannot leak. Brass is used because it seals reliably against a pipe thread and survives years of cleaning chemistry without the thread swelling or going brittle.
How do I know if my Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT needs replacing?
Replace it when the threads are damaged, cross-threaded, or have been chased so many times they no longer seal, and when the body shows a crack or has been distorted by a wrench. Repeated leaks at a fitting that has been resealed several times point at the fitting, not the tape.
What models is the Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT (part# SW139) 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 Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT (part# SW139) or get help?
You can add the Brass Street Elbow 90° 3/8″ MPT x 1/2″ FPT (part# SW139) 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.





