The Multiquip 43140-13 Spark Plug is a genuine OEM component designed for the STXDF series Whiteman ride-on power trowels. As a direct OEM replacement, this spark plug meets the exact ignition specifications required by Multiquip for the STXDF dual-fuel platform, ensuring the engine fires correctly whether running on propane or gasoline. Sourced directly through authorized Multiquip supply channels, part number 43140-13 is the correct service replacement for maintaining consistent engine performance on your STXDF trowel.
Key Features
- Genuine OEM Ignition Spec: — Manufactured to the exact heat range and electrode gap required by the STXDF engine, unlike generic plugs that may cause misfires or poor combustion.
- Dual-Fuel Compatibility: — Engineered to handle the combustion characteristics of both propane and gasoline operation on STXDF dual-fuel trowels.
- Drop-In Engine Fitment: — Threads directly into the cylinder head with no modification, matching the correct thread pitch and reach for the STXDF engine.
- Sustained Engine Output: — A properly functioning spark plug maintains full ignition timing and consistent power delivery, keeping the trowel's hydraulic drive and blade control responsive under load.
- Fuel System Safety: — A correctly specified plug reduces the risk of incomplete combustion on a dual-fuel system, minimizing raw fuel buildup in the cylinder on the STXDF platform.
A spark plug is the ignition source for the engine, generating the electrical spark that ignites the air-fuel mixture inside the cylinder on each combustion cycle. On ride-on trowels like the STXDF, consistent ignition is critical — a worn or incorrect plug causes hard starting, rough idle, misfiring, and loss of engine power that directly affects blade speed and trowel control. Replacing the spark plug at the correct service interval with a genuine OEM part like the 43140-13 keeps the engine running at its rated output and helps prevent secondary issues caused by incomplete combustion.
Part Details
| Part Number | 43140-13 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spark Plug |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STXDF |
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.
