The Multiquip ST4125D0491 Bolt M12X120L is a genuine OEM fastener designed for the ST4125D and ST6125D clean water submersible pumps. As a direct OEM replacement, this bolt meets the exact dimensional and material specifications used in original production, ensuring a proper fit without guesswork. Sourced directly from Multiquip, part number ST4125D0491 is the correct service replacement for these submersible pump models.
Key Features
- Genuine OEM Fastener Grade — Manufactured to the exact M12 x 120L specification used in original assembly, delivering the correct tensile strength and thread engagement for this application.
- Direct-Fit Replacement — Threads in as a drop-in replacement without rework, matching original bolt length and diameter for a flush, secure install.
- Confirmed Fitment — Verified for use on ST4125D and ST6125D Multiquip clean water submersible pumps.
- Structural Integrity at Depth — Maintains proper clamping force on submerged pump assemblies where loosening or incorrect hardware can compromise housing seals and pump performance.
- Corrosion-Resistant Service Life — Built to withstand the wet, submerged operating environment of clean water submersible pump applications, resisting the accelerated wear that standard hardware is prone to in these conditions.
The Bolt M12X120L is a structural fastener used to secure major pump housing components on Multiquip submersible pump assemblies. Proper bolt specification matters in this application — an incorrectly sized or under-rated fastener can allow housing sections to shift under operating pressure, compromising the pump's internal seals and reducing efficiency. A worn, stretched, or damaged bolt should be replaced promptly to maintain housing integrity and prevent water ingress into sealed cavities.
Part Details
| Part Number | ST4125D0491 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Bolt M12X120L |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Submersible Pumps Clean Water | ST4125D |
| MQ Submersible Pumps Clean Water | ST6125D |
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.
