The Multiquip 2856255008 Float Chamber Sub Assembly is a genuine OEM component designed for B46S90 series walk-behind power trowels. As a direct OEM replacement, this sub assembly is sourced and validated by Multiquip to meet the original design specifications of the carburetor fuel system on the B46S90. Keeping the float chamber in proper working order is critical to steady engine performance on the trowel, and this genuine part ensures you're restoring that system with an exact-match component. DHS Equipment stocks this part to help you get your B46 trowel back to work without the guesswork of fitment.
Key Features
- Genuine OEM Fuel System Integrity — Matched to the original carburetor assembly design, ensuring correct fuel level regulation and consistent air-fuel mixture delivery.
- Direct-Fit Replacement — Engineered to install in the existing carburetor housing without alteration, using the same mounting points and sealing surfaces as the original.
- Confirmed B46S90 Fitment — Verified for Whiteman B46S90 walk-behind power trowels; verify your model before ordering to ensure compatibility.
- Prevents Fuel Delivery Issues — A worn or damaged float chamber can cause flooding, fuel starvation, or rough idling — replacing it restores stable engine operation.
- Fuel System Safety — A properly sealed float chamber sub assembly prevents uncontrolled fuel overflow, reducing the risk of fuel leaks on the worksite.
The float chamber sub assembly is part of the carburetor's fuel metering system. It houses the float and needle valve that work together to maintain a consistent fuel level inside the carburetor bowl, ensuring the engine receives the correct fuel-to-air mixture at all times. When the float chamber is cracked, warped, or leaking, the engine may run rich, flood, or lose power — replacing the sub assembly restores proper fuel control and smooth, consistent engine output.
For fitment questions or help confirming this part is right for your machine, contact the DHS Equipment parts team.
Part Details
| Part Number | 2856255008 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Float Chamber Sub Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | B46S90 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
