The Multiquip 050300070 O-Ring is a genuine OEM sealing component designed for the MTR40HF trench rammer. Sourced directly from Multiquip, this part meets the exact material and dimensional specifications required for proper sealing in your rammer's fuel or fluid system. If you're seeing fuel weepage, air leaks, or rough running on your MTR40HF, a worn or damaged O-Ring is a common culprit — and this is the correct replacement to restore tight, leak-free operation.
Key Features
- Genuine OEM Sealing Material — Manufactured to Multiquip's exact compound and durometer specifications, ensuring the ring seats and compresses correctly without cracking or extruding under operating pressure.
- Drop-In Sealing Replacement — Dimensionally identical to the original, so it seats into the same groove and mates with the same mating surface with no fitting or trimming needed.
- Confirmed Fitment for MTR40HF — Verified for the Multiquip MTR40HF trench rammer; use part number 050300070 to confirm the correct application before ordering.
- Leak Prevention at the Source — A correctly installed O-Ring keeps fuel or fluid contained within the system, preventing air ingestion or fluid loss that can cause hard starting, erratic performance, or engine damage.
- Fuel System Safety — A failed or missing O-Ring in a fuel circuit creates a fire and inhalation hazard on the jobsite; replacing it promptly with the correct OEM part restores safe operation.
An O-Ring is a precisely sized elastomeric seal that sits in a machined groove between two mating surfaces or around a shaft, valve, or fitting. Its role is to prevent the passage of fluids or air past that joint under both static and dynamic conditions. On a rammer like the MTR40HF, O-Rings are found in fuel system components such as carburetors and fuel valves, where even a small leak or air breach can disrupt the fuel-air mixture and cause poor engine performance. When an O-Ring hardens, cracks, or becomes deformed through heat cycling and use, it loses its ability to form a tight seal — making timely replacement essential to keeping the engine running correctly and safely.
For fitment questions or help confirming this part for your specific machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 050300070 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTR40HF |
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.
