The Multiquip 0457 is a genuine OEM Spring Washer (Volute Casing) M8 designed for a range of Multiquip equipment including QP2TH, QP2TB, QP2TK, and QP2TZ pumps, WRS5200 and WRS5200DFPU roller screeds, and B Series walk-behind power trowels. As a factory-sourced component, 0457 meets the exact material and dimensional tolerances set at the time of manufacture. Sourcing the correct M8 spring washer ensures the volute casing assembly seats and tensions properly, maintaining the integrity of the casing joint under load. DHS Equipment stocks this part as a direct OEM replacement ready for your next scheduled service or emergency repair.
Key Features
- Genuine OEM Tension Retention — Manufactured to the exact spring rate and hardness specification required to maintain consistent clamping force at the volute casing interface across operating temperatures and vibration cycles.
- M8 Thread Class Direct Fit — Sized to the M8 fastener pattern used at the volute casing on compatible Multiquip pumps and screeds, dropping in without machining or modification to the hardware.
- Broad Equipment Compatibility — Confirmed fitment across QP2TH, QP2TB, QP2TK, and QP2TZ pump models as well as WRS5200, WRS5200DFPU roller screeds, and B Series walk-behind trowels.
- Casing Joint Integrity — A correctly tensioned spring washer prevents casing fasteners from backing out under vibration, keeping the volute sealed and flow path geometry consistent for full pump or screed output.
- Multiquip OEM Sourced — Supplied under the Multiquip genuine OEM parts program, carrying the same part number 0457 used by factory service technicians and authorized dealers.
A spring washer fitted at the volute casing serves a specific mechanical purpose: it applies controlled, continuous axial load to the casing fasteners, resisting the loosening effect caused by vibration during pump or screed operation. On pump applications such as the QP2TH, QP2TK, and QP2TZ, the volute casing houses the impeller and directs fluid flow, so any loss of clamping at the casing joint can allow leakage, pressure drop, or misalignment of internal components. When a spring washer fatigues, loses its spring-back, or is omitted entirely, fasteners are prone to working loose over time, leading to casing separation, fluid loss, and potential damage to surrounding components. Replacing a worn or damaged spring washer at each major service interval is a low-cost step that protects significantly more expensive pump and screed assemblies.
Part Details
| Part Number | 0457 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spring Washer (Volute Casing) M8 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | QP2TH |
| Trash Pumps | QP2TB |
| Trash Pumps | QP2TK |
| Trash Pumps | QP2TZ |
| Ride-On Roller Screeds | WRSPUDF |
| Ride-On Roller Screeds | WRS5200 |
| Ride-On Roller Screeds | WRS5200DFPU |
| International Walk-Behind Power Trowels | B SERIES CHINA |
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.
