The Multiquip 21979 is a genuine OEM Access Panel B Finisher designed for Whiteman and International walk-behind power trowel models including B46S90, BS46H90, BS46H11, BH90C, BH11C, BS90C, and B46. As a direct OEM replacement, part 21979 is manufactured to the same specifications as the original component, ensuring a consistent fit within the trowel's housing assembly. DHS Equipment stocks this panel to help you get your walk-behind trowel back in service without guesswork on compatibility.
Key Features
- Genuine OEM Construction — Manufactured by Multiquip to match the original panel geometry, fastener pattern, and material grade of the factory-installed component.
- Direct-Fit Replacement — Mounts to the same attachment points as the original B Finisher access panel, requiring no reworking of the surrounding housing.
- Broad Walk-Behind Trowel Coverage — Compatible with B46S90, BS46H90, BS46H11, BH90C, BH11C, BS90C, and B46 series trowels from the Whiteman and International product lines.
- Protects Internal Components — A correctly fitted access panel keeps debris, concrete slurry, and moisture away from internal drive and engine components during finishing operations.
- Verified Part Number — Sourced directly under Multiquip part number 21979, eliminating fitment uncertainty when ordering for your specific machine.
An access panel on a walk-behind power trowel provides a removable or hinged cover that allows operators and technicians to reach internal components — such as the engine, clutch, or drive assembly — for inspection, service, or adjustment. The B Finisher designation identifies this panel's specific position within the trowel's housing layout. When an access panel is cracked, warped, or missing, internal components are exposed to the abrasive environment of a concrete finishing site, accelerating wear and making routine maintenance more difficult. Replacing a damaged panel promptly preserves the accessibility and protection the original design provides.
Part Details
| Part Number | 21979 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Access Panel B Finisher |
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.
