The Multiquip 505988 Drain Plug is a genuine OEM component designed for MQ600 series trash pumps and AR13/AR14 series ride-on asphalt rollers. As a direct Multiquip OEM part, the 505988 is manufactured to the exact specifications required for proper sealing and fitment across compatible equipment. Verified fitment includes the MQ600H, MQ600HTB, MQ600HTP, MQ600TD80-TLRB, MQ600TD80-TLRP, AR13H, AR13HA/HAR, AR13HC, AR13D, and AR14H. Sourced through DHS Equipment, you receive an authentic replacement backed by Multiquip's OEM supply chain.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Multiquip's exact thread pitch and material spec, ensuring a leak-free seal on fluid drain points where an improper plug can cause oil or fluid loss.
- Direct Plug-In Replacement — Threads directly into the existing drain port with no re-tapping or modification to the housing required.
- Broad Cross-Family Fitment — Confirmed fit across MQ600 trash pump models and AR13/AR14 ride-on roller models, making it a versatile stock item for mixed fleets.
- Fluid Containment Performance — A correctly seated drain plug prevents unintended fluid drainage during operation, protecting engine and hydraulic system integrity.
- Fuel and Fluid System Safety — On pump and roller applications, a failed or missing drain plug can lead to rapid fluid loss and potential fire or environmental hazard; using the correct OEM plug is a critical safety step during service.
A drain plug serves as the removable closure point at the lowest part of a fluid reservoir — such as an engine oil sump, gearbox, or hydraulic tank — allowing controlled drainage during scheduled fluid changes or maintenance. When properly torqued and sealed, it prevents fluid from escaping during normal machine operation. A damaged, stripped, or missing drain plug can result in uncontrolled fluid loss, leading to equipment seizure, environmental contamination, or a safety hazard on the worksite. Using the correct OEM plug ensures the thread engagement and sealing surface match the housing exactly, preventing cross-threading or leaks that an ill-fitting substitute can cause.
For questions about fitment or to confirm this part is correct for your unit, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 505988 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Drain Plug |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | MQ600TD80-TLRB |
| Trash Pumps | MQ600TD80-TLRP |
| Rollers | AR13HC |
| Rollers | AR13HA/HAR |
| Rollers | AR14H |
| Trash Pumps | MQ600H |
| Trash Pumps | MQ600HTB |
| Trash Pumps | MQ600HTP |
| Rollers | AR13H |
| Rollers | AR13D |
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.
