The Multiquip 511279 is a genuine OEM Slot Head Bolt 5/16" x 1-1/2" designed for MQ600H series trash pumps, including the MQ600H, MQ600HTB, MQ600HTP, MQ600TD80-TLRB, and MQ600TD80-TLRP. As a direct OEM fastener, 511279 matches the original thread pitch, head profile, and length specified by Multiquip for these pump applications. Sourced directly through authorized distribution channels, this bolt ensures the correct fit the first time without guesswork. When you need to restore a pump to proper working order, using the right OEM hardware matters.
Key Features
- OEM-Specified Dimensions — Manufactured to the exact 5/16" diameter and 1-1/2" length called out in Multiquip's parts documentation, ensuring correct torque engagement and clamping load.
- Slotted Drive Profile — The slot head configuration matches the original fastener drive type, so standard screwdrivers and service tools seat cleanly without slip or damage to surrounding components.
- Confirmed Fitment — Verified for MQ600H, MQ600HTB, MQ600HTP, MQ600TD80-TLRB, and MQ600TD80-TLRP trash pump models using Multiquip part number 511279.
- Structural Integrity Under Pump Operation — Correct fastener spec maintains secure assembly on high-vibration pump housings; an undersized or mismatched bolt can work loose under load and compromise the seal or casing.
- Genuine OEM Assurance — Supplied as an authentic Multiquip replacement, not a generic substitute, so thread engagement and material grade align with what was installed at the factory.
A slot head bolt is a threaded fastener used to clamp and secure pump housing panels, covers, or bracketed assemblies together. On trash pump equipment like the MQ600H series, fasteners in these positions are exposed to constant vibration, water, and debris — conditions that accelerate wear and loosening over time. Using a bolt of the correct length and thread specification is essential: too short and the clamping force is insufficient; too long and the bolt can bottom out or interfere with internal components. Replacing a worn or missing fastener with the correct OEM part keeps the assembly properly torqued and the pump operating as intended.
For questions about fitment or to confirm this part is correct for your specific unit, contact the DHS Equipment team for support.
Part Details
| Part Number | 511279 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Slot Head Bolt 5/16" x 1-1/2" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | MQ600H |
| Trash Pumps | MQ600HTB |
| Trash Pumps | MQ600HTP |
| Trash Pumps | MQ600TD80-TLRB |
| Trash Pumps | MQ600TD80-TLRP |
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.
