The Multiquip X430440161 Tank Cap is a genuine OEM replacement designed for Whiteman walk-behind power trowel models B46S90, B46, BH90C, BH11C, and BS90C. As a direct OEM component, it is manufactured to the exact specifications required by these machines, ensuring a correct, secure fit with no guesswork. This cap is sourced directly through Multiquip's authorized parts network and sold by DHS Equipment, giving you confidence in both part authenticity and fitment accuracy. Keep a spare on hand to avoid unnecessary interruptions during concrete finishing operations.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's exact material and dimensional specifications for a fuel system seal that holds up under the vibration and heat generated during trowel operation.
- Direct Drop-In Replacement — Threads directly onto the original tank fitting on compatible Whiteman trowel models, matching the original cap's thread pitch and sealing surface.
- Broad Whiteman Trowel Compatibility — Confirmed fitment across B46S90, B46, BH90C, BH11C, and BS90C walk-behind power trowel models.
- Fuel System Integrity — A properly sealing tank cap prevents fuel evaporation, contamination, and spillage, keeping the fuel system clean and the engine running at full capacity throughout the pour.
- Fuel Spillage Prevention — A failed or missing tank cap is a fire and spill hazard on an active jobsite; replacing it promptly maintains safe operating conditions for the crew.
The tank cap seals the fuel tank opening on walk-behind power trowels, preventing fuel from spilling, evaporating, or drawing in debris and moisture during operation and transport. A cracked, stripped, or missing cap can allow contaminants into the fuel system, leading to carburetor fouling and engine performance issues. Replacing a worn or damaged cap with the correct OEM part restores a proper airtight seal and protects the fuel system from unnecessary wear.
Part Details
| Part Number | X430440161 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Tank Cap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | B46S90 |
| Whiteman Walk-Behind Power Trowels | B46 |
| Whiteman Walk-Behind Power Trowels | BH90C |
| Whiteman Walk-Behind Power Trowels | BH11C |
| Whiteman Walk-Behind Power Trowels | BS90C |
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.
Multiquip