Main Chassis X9012

The Main Chassis (part# X9012) is a genuine Tacony OEM replacement part from the chassis assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the primary structural frame that carries the tanks, motors, wheels and brush assembly and sets their relationship to each other.

What the Main Chassis does

The chassis is the datum for the whole machine. Wheel geometry, brush height and the position of the vacuum shoe relative to the floor are all set by where the chassis puts their mounting points, which is why a distorted chassis produces symptoms that look like half a dozen unrelated faults. A machine that cleans unevenly across a pass, or wears a brush on one end, is often reporting a frame problem rather than a brush or shoe problem.

When to replace the Main Chassis (X9012)

Replace it when the frame is cracked, bent, or has mounting points that have torn out or elongated, and when corrosion has eaten into a load-bearing area. A chassis that has been straightened once and moved again is not going to hold alignment.

Main Chassis X9012 — fitment and installation notes

This is a full teardown, so photograph the routing of every hose and harness before removal and label hardware by location as it comes off. Transfer components to the new chassis without forcing anything into place, and check wheel and brush alignment as an assembly before the machine goes back into service. 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 Main Chassis

• 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 Main Chassis do on the Tornado Marathon SE 900?

The chassis is the datum for the whole machine. Wheel geometry, brush height and the position of the vacuum shoe relative to the floor are all set by where the chassis puts their mounting points, which is why a distorted chassis produces symptoms that look like half a dozen unrelated faults. A machine that cleans unevenly across a pass, or wears a brush on one end, is often reporting a frame problem rather than a brush or shoe problem.

How do I know if my Main Chassis needs replacing?

Replace it when the frame is cracked, bent, or has mounting points that have torn out or elongated, and when corrosion has eaten into a load-bearing area. A chassis that has been straightened once and moved again is not going to hold alignment.

What models is the Main Chassis (part# X9012) 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 Main Chassis (part# X9012) or get help?

You can add the Main Chassis (part# X9012) 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.