The Multiquip 21979-001 is a genuine OEM B Finisher Access Panel designed for Whiteman and International walk-behind power trowel models in the B Series family. This panel is an exact-match replacement, confirmed for use on B46S90, BS46H90, BS46H11, BH90C, BH11C, BS90C, and B46 trowels. As a genuine Multiquip OEM component, it is manufactured to the same standards as the original part and installs without modification. Sourced directly through authorized distribution, the 21979-001 is the correct part to specify when servicing B Series walk-behind trowels.
Key Features
- Genuine OEM Construction — Manufactured to original Multiquip specifications, ensuring correct panel dimensions, material grade, and hardware alignment specific to B Series trowel housings.
- Direct-Fit Replacement — Mounts to the same attachment points as the original panel, allowing straightforward swap-out during routine maintenance or repair.
- Broad B Series Compatibility — Verified fitment across B46S90, BS46H90, BS46H11, BH90C, BH11C, BS90C, and B46 walk-behind power trowels.
- Structural Integrity — A properly fitted access panel keeps internal trowel components protected from debris and damage during operation, maintaining safe access for service intervals.
- Operator Access & Safety — A correctly secured access panel is essential for safe machine operation, preventing exposure to internal drive components during use.
The access panel on a walk-behind power trowel covers and protects internal mechanical components — such as drive belts, engine mounts, or gear assemblies — while providing a removable service point for routine maintenance. A damaged, missing, or ill-fitting panel can expose critical components to concrete dust and debris, accelerating wear and creating a potential safety hazard for the operator. Replacing a worn or broken panel with the correct OEM part restores the machine's original protection and keeps service access clean and straightforward.
For fitment questions or to confirm compatibility with your specific machine serial number, contact DHS Equipment directly.
Part Details
| Part Number | 21979-001 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | B Finisher Access Panel |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | B46S90 |
| International Walk-Behind Power Trowels | BS46H90 |
| International Walk-Behind Power Trowels | BS46H11 |
| Whiteman Walk-Behind Power Trowels | BH90C |
| Whiteman Walk-Behind Power Trowels | BH11C |
| International Walk-Behind Power Trowels | BS90C |
| Whiteman Walk-Behind Power Trowels | B46 |
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.
