The Multiquip 21953 Wire Assembly Centrifugal Presence Switch is a genuine OEM component designed for Whiteman walk-behind power trowels including the B46, J36-M30, HDA Series, J3036H55, and CA4HC/CA5BC series. This OEM part is sourced directly through Multiquip's authorized parts network, ensuring it matches the original electrical specification of your machine. Confirmed fitment across multiple Whiteman walk-behind trowel platforms makes the 21953 a straightforward service replacement when the switch wiring shows signs of wear or damage.
Key Features
- Correct Electrical Specification: — Manufactured to OEM wiring and connector standards, ensuring proper signal transmission between the centrifugal switch and presence switch circuits.
- Direct Plug-In Replacement: — Designed to connect to existing harness points on compatible Whiteman trowels, using the same routing and termination as the original assembly.
- Broad Trowel Compatibility: — Fits B46, J36-M30 Series, HDA Series, J3036H55, and CA4HC/CA5BC Whiteman walk-behind power trowel models.
- Operator Safety Circuit Integrity: — The presence switch circuit is a key part of the trowel's safety system; a damaged or faulty wire assembly can prevent the machine from engaging correctly or cause unreliable shutoff behavior.
- Genuine OEM Quality: — Produced under Multiquip's OEM standards with correct insulation grade and connector seating to withstand the vibration and heat exposure typical in trowel operation.
The centrifugal presence switch wire assembly connects the trowel's centrifugal clutch switch and operator presence switch into the machine's control circuit. These switches work together to detect whether the engine has reached operating speed and whether the operator is in control, allowing the trowel blades to engage safely. If the wire assembly becomes frayed, corroded, or disconnected, the trowel may fail to engage, shut down unexpectedly, or bypass safety controls — making timely replacement essential for both safe operation and consistent machine performance.
Part Details
| Part Number | 21953 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Wire Assembly Centrifugal Presence Switch |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | B46 |
| Whiteman Walk-Behind Power Trowels | J36-M30 Series |
| Whiteman Walk-Behind Power Trowels | HDA-SERIES |
| Whiteman Walk-Behind Power Trowels | J3036H55 |
| Whiteman Walk-Behind Power Trowels | CA4HC/CA5BC |
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.
