The Honda 23415-740-010 First Idle Gear (39T) is a genuine OEM component designed for HP250 and HP400 power carriers. Sourced directly from Honda, this gear is manufactured to the same specifications as the original part it replaces, ensuring correct tooth count and dimensional accuracy for a proper mesh within the transmission. Verify your unit's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks and more than one variant may be listed for these models.
Key Features
- Genuine OEM Tooth Geometry — a 39-tooth gear profile engineered to Honda's original specification, ensuring correct meshing and smooth power transfer within the drivetrain
- Direct OEM Replacement — this part drops into place without modification, restoring the transmission to its original operating condition
- Fits HP250 and HP400 Power Carriers — confirmed fitment for both Honda power carrier models; match your serial number to the fitment table to confirm the correct variant for your unit
- Drivetrain Integrity — a worn or damaged first idle gear causes irregular power delivery, gear noise, and transmission slip; replacing it promptly keeps the power carrier performing as intended
The First Idle Gear (39T) is a fixed-ratio gear within the power carrier's transmission, sitting in the gear train between the engine output and the final drive. It transmits torque at the idle stage of the gear sequence, and its 39-tooth count determines the speed and load relationship at that point in the drivetrain. When this gear wears, chips, or loses teeth, the transmission produces noise under load, power delivery becomes uneven, and in severe cases the drivetrain loses drive entirely. Replacing it with a genuine Honda part restores correct gear mesh and smooth, consistent power transfer.
Part Details
| Part Number | 23415-740-010 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | First Idle Gear (39T) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Power Carrier | HP250, HP400 | All |
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.
