The Multiquip 21979-001 B Finisher Access Panel is a genuine OEM replacement designed for Whiteman and International B-series walk-behind power trowels, including the BH11C, BH90C, BS90C, B46, BS46H11, B46S90, and BS46H90. Sourced directly from Multiquip, this panel matches the original component in fit, form, and finish — so installation is straightforward with no guesswork. Keeping this panel in good condition is essential for maintaining safe access to internal components during servicing and daily operation.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original design specifications, ensuring the panel aligns correctly with the trowel housing and hardware mounting points.
- Direct-Fit Replacement — Engineered specifically for the B-series trowel frame, this panel reinstalls using existing fastener locations with no drilling or modification.
- Broad B-Series Compatibility — Confirmed fitment across BH11C, BH90C, BS90C, B46, BS46H11, B46S90, and BS46H90 walk-behind power trowel models.
- Protects Internal Components — A properly seated access panel shields the machine's internal mechanisms from debris, concrete splatter, and moisture that can accelerate wear on critical components.
- Operator Safety — A damaged or missing access panel exposes moving parts and electrical connections during operation — replacing it promptly is a straightforward step toward maintaining a safe working environment.
The access panel on a walk-behind power trowel serves as a protective cover that allows operators and service technicians to reach internal components — such as engine controls, clutch assemblies, or wiring — during routine maintenance and inspection. When the panel is cracked, missing, or warped, it can no longer provide a secure barrier against concrete dust, water, and debris, which can infiltrate the machine and cause premature wear or damage to the parts it shields. Replacing a worn or damaged access panel promptly keeps the machine serviceable and maintains a clean, organized access point for future maintenance tasks.
DHS Equipment supplies genuine Multiquip OEM parts with accurate fitment data you can rely on. If you need help confirming compatibility with your specific trowel serial number or model, contact our parts team directly.
Part Details
| Part Number | 21979 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | B Finisher Access Panel |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | BH11C |
| Whiteman Walk-Behind Power Trowels | BH90C |
| International Walk-Behind Power Trowels | BS90C |
| Whiteman Walk-Behind Power Trowels | B46 |
| International Walk-Behind Power Trowels | BS46H11 |
| Whiteman Walk-Behind Power Trowels | B46S90 |
| International Walk-Behind Power Trowels | BS46H90 |
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.
