The Multiquip 505016990 Back Up Ring MRV-14 is a genuine OEM Back Up Ring designed for the MRV-14. As a direct OEM part sourced through Multiquip's authorized supply chain, 505016990 is manufactured to the same specification as the original component installed at the factory. Confirm your model code MRV-14 before ordering to ensure an exact match for your application.
Key Features
- Genuine OEM Sealing Material — Manufactured to the original compound and dimensional specification required for a Back Up Ring, ensuring correct compression and seal support in service.
- Direct Drop-In Replacement — Engineered to seat in the same groove geometry as the original, so installation follows the standard service procedure without rework.
- Confirmed MRV-14 Fitment — Designed specifically for the MRV-14, eliminating guesswork when sourcing sealing components during a rebuild or repair.
- Protects Primary Seal Integrity — A correctly installed back up ring prevents extrusion of the primary seal under pressure, maintaining a leak-free system and consistent hydraulic or fluid performance.
A back up ring is a rigid or semi-rigid support ring installed alongside a primary O-ring or lip seal in a pressurized fluid system. Its role is to prevent the softer primary seal from being pushed — or extruded — into the clearance gap between mating components under high pressure. Without a functioning back up ring, the primary seal deforms prematurely, leading to fluid leaks, pressure loss, and accelerated wear on surrounding components. Replacing a worn or damaged back up ring during any seal service is a straightforward step that preserves the integrity of the entire sealing assembly.
Part Details
| Part Number | 505016990 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Back Up Ring MRV-14 |
Compatibility & Fitment
| Name | Model |
|---|---|
| MRV-14 | MRV-14 |
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.
