The Multiquip 29344 Kubota Glow Plug Timer is a genuine OEM component designed for HTX44 and STX55 series hydrostatic ride-on power trowels. This direct-fit replacement controls the pre-heat cycle that brings diesel engine cylinders up to proper operating temperature before cranking, ensuring consistent and dependable cold-start performance. Confirmed fitment includes HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6 machines.
Key Features
- Genuine OEM Timing Accuracy — Sourced directly from Multiquip, this timer delivers the exact pre-heat duration specified for Kubota and Yanmar diesel engines used in these trowel models, preventing under- or over-heating of glow plugs.
- Drop-In Electrical Fit — Matches the OEM connector and relay configuration of the HTX44 and STX55 control circuits, allowing straightforward swap-out without rewiring or adapting the harness.
- Broad HTX44 and STX55 Coverage — A single part number covers HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6, making it a practical stock item for fleets running mixed trowel configurations.
- Cold-Start Reliability — A functioning glow plug timer ensures the engine fires cleanly on the first crank in cold or damp conditions, keeping trowel operations on schedule when concrete placement begins.
- Fuel System Protection — Correct pre-heat cycle timing prevents raw fuel from washing cylinder walls during hard starts, protecting injectors and engine internals over the long term.
The glow plug timer controls how long the glow plugs in a diesel engine are energized before and during cranking. In a diesel engine, combustion depends entirely on compression heat rather than a spark, so glow plugs must raise cylinder temperature to a threshold where fuel will ignite reliably — especially in cold ambient conditions. When the timer fails or provides an incorrect pre-heat duration, the engine may crank without firing, start roughly, or produce excessive white smoke, all of which point to incomplete combustion caused by insufficient cylinder pre-heat. Replacing a faulty timer with the correct OEM unit restores the precise timing the engine management system expects and keeps the trowel ready to work at the start of every pour.
For fitment questions or help confirming compatibility with your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 29344 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Kubota Glow Plug Timer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
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.
