The Husqvarna 505454101 Pinion is a genuine OEM replacement built for the K4000 and K3000 power cutters. As a factory-original component, this pinion is manufactured to Husqvarna's exact specifications, ensuring correct gear mesh and proper power transfer within the drivetrain. DHS Equipment supplies this part to help keep your equipment running at full performance.
Key Features
- OEM Gear Geometry — Manufactured to Husqvarna's exact tooth profile and pitch specifications, ensuring correct mesh with mating drivetrain components.
- Direct Drivetrain Replacement — Engineered to install directly into the K4000 and K3000 power cutter gearbox without modification, matching the original mounting dimensions.
- K4000 and K3000 Power Cutter Fitment — Confirmed fitment for both the K4000 and K3000 power cutters; cross-reference 505454101 against your parts diagram before ordering.
- Restored Power Transfer — A correctly fitted pinion maintains consistent torque delivery to the blade spindle, supporting full cutting force and smooth operation under load.
- Genuine Husqvarna Quality — Sourced directly from Husqvarna as a genuine OEM component, providing the material grade and dimensional accuracy that aftermarket alternatives may not replicate.
The pinion is a small-diameter gear that sits within the power cutter's gearbox and meshes with a larger gear to transfer engine torque to the blade spindle. It plays a direct role in determining cutting speed and torque output — when the pinion wears or loses tooth integrity, the result is slipping, noise, or a complete loss of blade drive. Replacing a worn pinion with a genuine OEM part restores the correct gear engagement and ensures the drivetrain operates as designed.
Part Details
| Part Number | 505454101 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Pinion |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K4000 |
| Power Cutter | K3000 |
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.
