The Multiquip 3910382 Shoulder Bolt 3/8 x 3/8 is a genuine OEM fastener designed for a wide range of Multiquip and Whiteman walk-behind and ride-on power trowel models. As a direct OEM replacement, this bolt is manufactured to the exact dimensions and material grade specified for the application, ensuring a correct and secure installation every time. Confirmed fitment includes PRO36, PRO46, CA4HC, CA5BC, CA4HM, CA4.4HM, MD105, STXDF, and C-4 series equipment. DHS Equipment supplies this part direct from the Multiquip OEM catalog, so you can order with confidence in part number accuracy.
Key Features
- Precision-Dimensioned Fastener — Machined to exact 3/8 x 3/8 shoulder specifications, ensuring correct clamping depth and shank engagement in the intended bore.
- Genuine OEM Part — Sourced directly from the Multiquip OEM catalog under part number 3910382, meeting the same material and dimensional standards as the original hardware.
- Broad Trowel Family Fitment — Compatible with PRO36, PRO46, CA4HC, CA5BC, CA4HM, CA4.4HM, CA-4-4H, MD105, STXDF, and C-4 series walk-behind and ride-on power trowels.
- Maintains Blade Pitch Mechanism Integrity — A worn or incorrect shoulder bolt can introduce slop into pitch control linkages; correct replacement restores precise blade angle response and consistent finishing performance.
- Drop-In Hardware Replacement — Shoulder diameter, thread spec, and overall length match the OEM bolt, allowing straightforward installation without rework to the surrounding assembly.
A shoulder bolt differs from a standard hex bolt in that it features an unthreaded cylindrical shank — the shoulder — between the head and the threaded portion. This shoulder acts as a precision pivot or bearing surface, allowing connected components such as linkage arms or control levers to rotate or articulate around it with minimal play. In power trowel applications, shoulder bolts are commonly used in blade pitch control assemblies and pivot points where controlled movement is critical. When a shoulder bolt wears or is replaced with an incorrectly sized fastener, excess movement is introduced into the linkage, degrading blade pitch accuracy and finishing consistency.
For questions about fitment or to confirm this part is correct for your specific machine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 3910382 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Shoulder Bolt 3/8 x 3/8 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Chemical Spray Systems | WSC55 |
| Walk-Behind Trowels | PRO36 |
| Whiteman Walk-Behind Power Trowels | CA4HC/CA5BC |
| Power Trowels | CA4.4HM |
| Hydraulic Ride-On Power Trowels | MD105 |
| Walk-Behind Trowels | C-4 |
| C and CA Series | CA4HC |
| Whiteman Ride-On Power Trowels | STXDF |
| Walk-Behind Trowels | PRO46 |
| International Walk-Behind Power Trowels | CA-4-4H |
| Whiteman Walk-Behind Power Trowels | CA4HM |
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.
