The Multiquip 90741ZM7000 Optional 4.78MM Key is a genuine OEM component designed for the BP-25H gasoline backpack flex-shaft vibrator. Sourced directly from Multiquip, this key is built to the same specification as the original part, ensuring a correct fit within the drivetrain assembly. Contractors running BP-25H equipment can order with confidence knowing this is the exact part called out in the factory parts diagram.
Key Features
- Genuine OEM Specification: — Manufactured to Multiquip's original dimensional tolerances, ensuring the key seats correctly and transfers torque without slippage or play.
- Exact 4.78MM Profile: — Precision-sized to the 4.78MM keyway dimension, allowing the part to drop into position without recutting or shimming.
- Confirmed BP-25H Fitment: — Verified for use with the Multiquip BP-25H gasoline backpack flex-shaft vibrator, eliminating guesswork when sourcing a direct replacement.
- Drivetrain Integrity: — A correctly fitted key locks the shaft and driven component in positive rotational alignment; a worn or missing key allows slippage that disrupts vibration output and accelerates wear on mating parts.
- Optional Configuration Support: — Designated as an optional key in the Multiquip parts listing, making it the correct reference part for configurations that require this additional keying arrangement.
A woodruff or drive key is a small but critical component that sits in a machined slot between a rotating shaft and its mating hub or drive element, locking the two together so they turn as a single unit. In a backpack concrete vibrator like the BP-25H, the key ensures that engine power is transmitted cleanly through the drivetrain to the flex shaft and vibrating head. When a key shears, wears, or goes missing, the shaft spins independently of the driven component, resulting in loss of vibration output and potential damage to the surrounding keyway if operation continues.
Need help confirming compatibility? Contact the DHS Equipment team with your model and serial number before ordering.
Part Details
| Part Number | 90741ZM7000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Optional 4.78MM Key |
Compatibility & Fitment
| Name | Model |
|---|---|
| Gasoline Backpack Vibrator | BP-25H |
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.
