Multiquip 50179900 Star Washer

The Multiquip 50179900 Star Washer is a genuine OEM fastening component designed for use across several Multiquip equipment families, including MVH502DSB and MVH502DSB2 reversible plate compactors, the MDR-9D power trowel, and the MQ41TDH trash pump. As an OEM part, 50179900 is sourced directly through Multiquip's authorized parts network to ensure it meets the original design specification for each application it serves. DHS Equipment stocks this part to help you get your equipment back in service with the correct hardware the first time.

Key Features

• Genuine OEM Fastening Integrity — Manufactured to Multiquip's original specification, ensuring the star washer delivers the correct locking grip and tooth engagement for each fastener application.
• Direct-Fit Hardware — Designed to install without modification, matching the correct bore diameter and tooth profile for the fastener positions on compatible Multiquip equipment.
• Broad Equipment Compatibility — Confirmed fit across MVH502DSB, MVH502DSB2, MDR-9D, and MQ41TDH, covering reversible plate compactors, a power trowel, and a trash pump in a single OEM part number.
• Secure Vibration Resistance — Star washers are specifically engineered to resist fastener loosening under vibration — critical on compaction and pumping equipment where continuous vibration would otherwise allow hardware to back off over time.
• Electrical Grounding Suitability — The serrated tooth design bites into mating surfaces to establish and maintain reliable electrical ground connections where required, an important function in multi-component assemblies.

A star washer — also called a serrated or tooth lock washer — functions by biting into the mating surfaces on either side of a fastened joint when the fastener is torqued down. The serrated teeth resist rotation and prevent the nut or bolt from loosening under vibration, thermal cycling, or repeated load. When a star washer is missing, damaged, or substituted with an incorrect washer, fasteners in high-vibration assemblies can work themselves loose, leading to component movement, accelerated wear, or loss of an electrical ground connection. Using the correct OEM part ensures the tooth profile and material hardness are matched to the application.

For equipment support or help confirming fitment for your serial number, contact DHS Equipment directly.

Part Details

Compatibility & Fitment

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.