The Multiquip 176001100 is a genuine OEM Carriage Bolt 3/8"-16 x 2-1/4" designed for MQD2H and MQD3H diaphragm pump models. As an OEM-sourced fastener, it meets the exact thread pitch, shank diameter, and length specifications called out in the original Multiquip service documentation. Sourcing the correct hardware matters — an undersized or mismatched bolt can compromise clamping load and lead to joint failure in wet, high-vibration pump environments. Verify your model against the MQD2H and MQD3H fitment before ordering to ensure a direct, specification-matched installation.
Key Features
- OEM-Matched Thread Specification — 3/8"-16 thread pitch and 2-1/4" shank length match the original Multiquip engineering spec, ensuring correct clamping torque and seating depth.
- Direct Hardware Replacement — Drops into the existing fastener position on MQD2H and MQD3H diaphragm pumps without rework or redrilling.
- Diaphragm Pump Fitment — Confirmed compatibility with Multiquip MQD2H and MQD3H models, making it straightforward to source the right bolt the first time.
- Vibration-Environment Hardware — The carriage bolt's smooth shank and square neck are designed to resist rotation during tightening, maintaining joint integrity under the continuous vibration load typical of pump operation.
- Fuel and Fluid System Safety — Correct fastener sizing on pump assemblies is critical to maintaining leak-free sealing; an incorrect bolt length or pitch risks stripping the mating thread and compromising fluid containment.
A carriage bolt serves as a structural fastener that clamps pump housing panels, guards, or mounting plates securely together. Its distinctive domed head and square neck lock the bolt in place against the mating surface during installation, preventing spin-out without requiring a wrench on the bolt head. When a carriage bolt is missing, stripped, or substituted with an incorrect size, joint clamping force drops, components can shift under vibration, and pump housing integrity may be compromised — leading to misalignment, accelerated wear, or fluid leakage at critical sealing surfaces.
Part Details
| Part Number | 176001100 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Carriage Bolt 3/8"-16 x 2-1/4" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diaphragm Pumps | MQD2H |
| Diaphragm Pumps | MQD3H |
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.
