The Multiquip 6503090 Back Up Ring HBC-16 is a genuine OEM Back Up Ring designed for the HBC-16. Sourced directly from Multiquip, this part meets the original engineering specifications for the HBC-16, ensuring a correct, hassle-free installation. When you need to restore a hydraulic or sealing assembly to proper working condition, using the correct OEM back up ring is essential to maintaining system integrity and preventing premature seal failure. DHS Equipment stocks this genuine Multiquip part so you can get your equipment back to work without delay.
Key Features
- Genuine OEM Sealing Material — Manufactured to the original compound and dimensional specification, delivering the compression consistency a back up ring must maintain to support adjacent seals under pressure.
- Direct-Fit for HBC-16 — Engineered specifically for the HBC-16, this ring seats into the original groove geometry without rework or modification to the housing.
- Confirmed HBC-16 Fitment — Verified compatible with HBC-16 equipment; part number 6503090 cross-references directly to this application.
- Leak Prevention Under Load — A properly installed back up ring prevents seal extrusion under high-pressure cycles, keeping fluid where it belongs and maintaining consistent output from the assembly.
- System Safety Compliance — In hydraulic and fluid-transfer assemblies, a failed back up ring can lead to uncontrolled fluid loss or pressure drop; using the correct OEM component supports safe, controlled system operation.
A back up ring works alongside a primary seal — typically an O-ring — to prevent seal extrusion into the clearance gap between mating components under pressure. Without a correctly sized and properly rated back up ring, the primary seal is exposed to mechanical stress that causes it to deform, leading to leaks, pressure loss, and accelerated wear of surrounding components. Replacing a worn or damaged back up ring with the correct OEM part restores the full sealing stack to its original specification and extends the service life of the entire assembly.
Part Details
| Part Number | 6503090 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Back Up Ring HBC-16 |
Compatibility & Fitment
| Name | Model |
|---|---|
| HBC-16 | HBC-16 |
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.
