The Multiquip 10491 Cap Fitting 3/8NPT Hex Head is a genuine OEM component designed for JTO-Series, STX6H, and PRX ride-on trowel equipment. Sourced directly from Multiquip, this fitting delivers exact-match threading and dimensions for a secure, leak-free installation in the hydraulic or fluid circuit it serves. Part number 10491 is the correct OEM specification for these machines, giving you the confidence that the part will seat and seal as intended. DHS Equipment stocks this fitting so you can get your trowel back to work without unnecessary delays.
Key Features
- OEM-Grade Sealing Integrity — Manufactured to Multiquip's original thread and material spec, ensuring consistent compression and a leak-proof seat in the 3/8NPT port.
- Hex Head Design for Positive Torque — The hex head profile allows a standard wrench to drive the cap to correct torque without slipping or rounding, making installation straightforward in tight quarters.
- Direct-Fit for Ride-On Trowels — Confirmed fitment for JTO-Series, STX6H, and PRX machines; threads in without modification to the port or housing.
- Protects Open Ports During Service — Caps off hydraulic or fluid lines to prevent contamination ingress and fluid loss whenever a component is removed or the circuit is open for maintenance.
- Fluid System Safety — A properly seated cap fitting prevents uncontrolled fluid release from pressurized circuits, maintaining safe operating conditions on the trowel.
A cap fitting is a threaded plug used to seal an open port in a hydraulic or fluid system. On ride-on power trowels, these ports appear on manifolds, pumps, and control valves, and the cap must hold a pressure-tight seal to prevent fluid loss and contamination. When a cap fitting is missing, cross-threaded, or damaged, hydraulic fluid can escape or air can enter the circuit, leading to erratic blade pitch control or drive system inconsistency. Replacing it with the correct OEM fitting restores a clean, rated seal to the system.
Part Details
| Part Number | 10491 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Cap Fitting 3/8NPT Hex Head |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | JTO-SERIES |
| Whiteman Ride-On Power Trowels | STX6H |
| Ride-On Power Float | PRX |
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.
