Multiquip 050200110 O-Ring MDR-7A/DW

The Multiquip 050200110 O-Ring MDR-7A/DW is a genuine OEM sealing component designed for MTX-series rammers including the MTX50HD, MTX60HD, MTX60HF, MTX70HD, MTX70HF, MTX70HDR, and MTX80HDR. As a direct OEM part sourced through Multiquip's authorized supply chain, 050200110 delivers the correct material grade, cross-section, and dimensional tolerancing needed to maintain a proper seal under the demanding reciprocating forces of tamper operation. Confirm your model code before ordering to ensure this is the right o-ring for your specific machine configuration.

Key Features

• OEM-Grade Sealing Material — Manufactured to Multiquip's exact compound and durometer specification for the MDR-7A/DW application, ensuring correct compression and sealing performance under operating conditions.
• Drop-In Replacement — Matches the original o-ring profile exactly, seating into the same groove without resizing, shimming, or adaptation.
• Broad MTX-Series Fitment — Compatible with MTX50HD, MTX60HD, MTX60HF, MTX70HD, MTX70HF, MTX70HDR, and MTX80HDR rammers, covering both GX100 and GX120 Honda-powered configurations.
• Leak Prevention Under High-Cycle Stress — A worn or cracked o-ring in a rammer allows fluid or air bypass that degrades stroke consistency and output force; replacing with 050200110 restores a tight, reliable seal.
• Fuel System Integrity — Correct o-ring fitment in fuel-circuit applications prevents leaks that can create fire risk or cause hard-starting and rough running — making part selection accuracy critical.

An o-ring is a molded elastomeric loop used to create a pressure-tight seal between two mating surfaces or components. In a rammer like the MTX-series, o-rings appear in the fuel system, carburetor, and internal fluid passages where maintaining a leak-free barrier is essential to consistent engine and tamper performance. When an o-ring degrades — through heat cycling, chemical exposure, or age — it loses its ability to compress and seal, leading to leaks, pressure loss, or contamination that can cause hard starting, erratic operation, or accelerated wear on surrounding components.

Fits: MTX50HD | MTX60HD | MTX60HF | MTX70HD | MTX70HF | MTX70HDR | MTX80HDR

Need help confirming fitment? Contact the DHS Equipment parts team with your model and serial number before ordering.

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.