The Multiquip EM402391 Expander Insert is a genuine OEM component designed for MG30T2D, MG30M2D, MG30T3D, MG30M3D, and MG30 series fireproofing pumps and mixers. As a direct OEM replacement sourced through Multiquip's authorized parts program, EM402391 is manufactured to the same standards as the original part installed at the factory. Confirm your model code against the fitment list above before ordering to ensure an accurate match for your machine.
Key Features
- Genuine OEM Construction — Manufactured to the same material and dimensional specifications as the original Multiquip expander insert, ensuring the expansion interface performs as intended within the assembly.
- Direct-Fit Replacement — Engineered to seat and engage exactly as the original, allowing straightforward installation without reworking the surrounding components.
- Broad MG30 Series Compatibility — Confirmed fitment across MG30T2D, MG30M2D, MG30T3D, MG30M3D, and MG30 models, covering both fireproofing pump and mixer configurations.
- Maintains Seating Integrity — A properly functioning expander insert holds components firmly under operating loads; a worn or damaged insert can cause looseness, misalignment, or loss of clamping force in the assembly.
- Verified Multiquip Part Number — Ordered and fulfilled as EM402391, eliminating the guesswork that comes with cross-referencing aftermarket alternatives.
An expander insert is an internal locking or clamping component used to secure mating parts within an assembly by exerting outward radial or axial pressure when engaged. In fireproofing pumps and mixers like the MG30 series, this type of insert maintains a firm mechanical connection between joined components, preventing relative movement under vibration and pumping loads. When the insert wears or loses its ability to expand correctly, the joint it secures can become loose, leading to misalignment, accelerated wear on surrounding parts, or loss of operational function in the pump or mixer drive system.
For fitment questions or help confirming this part is the correct part for your MG30 series machine, contact the DHS Equipment parts team directly.
Part Details
| Part Number | EM402391 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Expander Insert |
Compatibility & Fitment
| Name | Model |
|---|---|
| Fireproofing Pumps | MG30T2D |
| Fireproofing Pumps | MG30M2D |
| Fireproofing Pumps | MG30T3D |
| Fireproofing Pumps | MG30M3D |
| Fireproofing Pumps | MG30 |
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.
