The Multiquip 19661 Shutoff Valve 5Barb X 6Sbarb No Screen is a genuine OEM component designed for Whiteman and international ride-on power trowel models including STX55, HTX44, HTXD6i, STXD6i, HHNG5, EHHNK5, HHN34TVD, and HHN31V series machines. As a direct OEM replacement, part 19661 is sourced and validated by Multiquip to meet the same specifications as the original valve installed at the factory. Confirmed fitment spans the STX55Y6, STX55J6, HTX44Y4, HTX44Y5, HTX44K4, and HTX44K5 model codes, making this a straightforward swap for technicians and operators servicing these trowels. Keep a spare on hand to maintain uninterrupted operation during scheduled fluid service intervals.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original valve specifications, ensuring correct barb sizing and flow control behavior for the fuel or fluid circuit on ride-on trowel models.
- Correct Barb Configuration — The 5-barb inlet by 6-sbarb outlet profile matches the original hose routing exactly, allowing the valve to seat and seal without modification to existing lines.
- Broad Ride-On Trowel Fitment — Compatible with STX55, HTX44, HTXD6i, STXD6i, HHNG5, EHHNK5, HHN34TVD, and HHN31V series ride-on power trowels.
- Positive Shutoff Control — Provides a reliable on/off shutoff for the connected fluid line, allowing clean servicing of fuel or fluid systems without uncontrolled leakage during maintenance.
- Fuel System Safety — A functioning shutoff valve is essential for safely isolating fuel flow during service; a failed or leaking valve can create a fire hazard or cause unintended fuel discharge on the jobsite.
A shutoff valve controls the flow of fuel or other fluid through a line in the machine's fluid circuit. When the valve is open, fluid passes freely to downstream components; when closed, it blocks flow entirely, allowing technicians to safely disconnect hoses, replace filters, or perform other service work without draining the entire system. The no-screen designation on part 19661 means this valve does not incorporate an inline strainer, making it a direct match for positions in the circuit where filtration is handled elsewhere. A cracked, stuck, or leaking shutoff valve can prevent proper fuel isolation, create leak points, or make routine maintenance unsafe — replacing it promptly with the correct OEM part keeps the fluid system operating as designed.
Part Details
| Part Number | 19661 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Shutoff Valve 5Barb X 6Sbarb No Screen |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | HHNG5 |
| International Ride-On Power Trowels | EHHNK5 |
| Whiteman Ride-On Power Trowels | HTXD6i |
| Whiteman Ride-On Power Trowels | STXD6i |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HHN34TVD |
| Whiteman Ride-On Power Trowels | HHN31V |
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.
