The Multiquip 50426900 Serrated Washer A 8.4 is a genuine OEM fastener component designed for MVH502DSB, MVH502DSB2, MQ41TDH, and MDR-9D equipment. As a direct OEM replacement, this washer is manufactured to the exact dimensions and material specification required for proper clamping force and vibration resistance across these machines. Whether you are servicing a reversible plate compactor, trash pump, or power trowel, fitting the correct serrated washer ensures the fastener assembly performs as intended. Order 50426900 from DHS Equipment for dependable OEM accuracy on every service job.
Key Features
- Genuine OEM Tooth Engagement: — Manufactured to the exact serration geometry required for positive bite and anti-loosening performance under vibration loads.
- Correct A 8.4 Sizing: — Matches the 8.4 mm bore specification precisely, seating flush against the mating fastener and surface without shimming or adjustment.
- Broad Cross-Equipment Fitment: — Confirmed for MVH502DSB, MVH502DSB2, MQ41TDH, and MDR-9D, covering reversible plate compactor, trash pump, and power trowel applications.
- Vibration-Resistant Locking Action: — Serrated contact faces resist rotational loosening caused by the continuous vibration inherent in compaction and pump operation, maintaining joint integrity over extended run time.
- Direct Drop-In Replacement: — Installs in place of the original washer with no modification to surrounding hardware, keeping teardown and reassembly time to a minimum.
A serrated washer functions as a locking element within a bolted joint, using hardened teeth on one or both faces to bite into the fastener head and the mating surface when torqued down. This biting action resists the rotational forces that cause nuts and bolts to back off over time, particularly in high-vibration environments such as plate compactors and engine-driven pumps. When a serrated washer wears flat or is replaced with an incorrect size, the fastener joint loses its locking grip and can work loose during operation, leading to component misalignment or fastener failure.
Part Details
| Part Number | 50426900 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Serrated Washer A 8.4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Plate Compactors | MVH502DSB |
| Plate Compactors | MVH502DSB2 |
| MQ Trash Pumps | MQ41TDH |
| Power Trowels | MDR-9D |
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.
