The Multiquip 12148 Dust Diagnostic Cap PD6-285 is a genuine OEM component designed for PRX, STX55, and HTX44 series ride-on power trowels. This factory-sourced cap protects diagnostic port connections on Whiteman ride-on trowels from dust, debris, and moisture contamination in demanding concrete finishing environments. Confirmed fitment includes the STX55Y6, STX55J6, HTX44K4, HTX44Y4, HTX44Y5, HTX44K5, HTXD6i, and STXD6i, as well as PRX hybrid power float models. Stocking this OEM part on hand ensures diagnostic access points remain protected and ready whenever service is required.
Key Features
- Genuine OEM Protection: — Manufactured to Multiquip's original specification, ensuring the diagnostic port cap seals with the correct fit and retention force for PD6-285 port connections.
- Contamination Defense: — Keeps dust, concrete slurry, and moisture out of exposed diagnostic ports, preserving port integrity between service intervals.
- Direct-Fit Installation: — Designed to seat directly onto the PD6-285 diagnostic port without tools or modification, snapping securely into place as the original component does.
- Broad Trowel Series Coverage: — Fits PRX hybrid, STX55 super-sized hydrostatic, and HTX44 heavy-duty hydrostatic ride-on trowel models, including diesel and gas engine configurations.
- Diagnostic Readiness: — A missing or damaged cap exposes the port to debris that can obstruct or corrupt diagnostic readings; replacing it promptly keeps service access clean and accurate.
The Dust Diagnostic Cap PD6-285 is a protective cover for the diagnostic port on Whiteman ride-on power trowel hydraulic and electrical systems. Its role is straightforward but critical — it seals the port opening when a diagnostic tool is not connected, blocking concrete dust, water, and grit from entering and fouling the connection. When this cap is missing or cracked, contaminants can accumulate inside the port, making it difficult to seat a diagnostic connector properly and potentially causing unreliable or failed readings during troubleshooting.
Part Details
| Part Number | 12148 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Dust Diagnostic Cap PD6-285 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Ride-On Power Float | PRX |
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
| 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 | HTX44K5 |
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.
