Description
Overview:
This Worm Wheel is a genuine Husqvarna replacement part for professional top‐handle chainsaws, including the T540 XP II and 540XP Mark III. It is a precision‐moulded helical gear, typically manufactured from a durable, wear‐resistant polymer for a long service life. The worm wheel transfers rotation from the drive side to mating components, helping to keep the saw running smoothly and reliably under daily use. On these models it is commonly used to transmit drive to the chain lubrication system. Replacing a worn or stripped worm wheel restores smooth engagement and reduces unnecessary wear on related parts. Supplied to original equipment standards for fit and performance, it is intended as a straightforward like‐for‐like swap for the original 504 78 60‐01 component.
Key Features:
- Genuine Husqvarna part for assured compatibility and reliability
- Direct replacement for worn or damaged worm wheels to restore smooth operation
- Precision moulding and helical profile for consistent, low‐friction drive
- Tough polymer construction resists wear and deformation in demanding use
- Helps maintain effective chain lubrication and overall cutting performance
- Supports safe operation by reducing the risk of drive slippage or seizure
- Stable running reduces knock‐on wear to mating gears and pump components
- Straightforward to fit during routine clutch or drive‐side servicing
- Engineered for the T540 XP II and 540XP Mark III families
- OEM reference: 504 78 60-01 (also 504786001)
Typical Applications:
Used during scheduled maintenance or repair when chain lubrication becomes intermittent, the drive feels rough, or the original gear shows rounding or cracks. Suitable for workshop overhauls and on‐site fixes to restore dependable drive to mating components on Husqvarna top‐handle saws used for arborist work, grounds maintenance, and general cutting tasks.
Also known as:
Worm gear, oil pump drive gear, pump worm, clutch worm gear, helical drive gear, oiler worm, drive cog, transmission gear for lubrication drive.
Fits Models:
540XP Mark III, T540 XP II, T540 XP Mark III, T540XP, T540XPII, T540XPMarkIII
Alternate Part Numbers:
504 78 60-01, 504786001
Product Specifications
| L&S Part No. | 504 78 60 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 504786001 |
| Unit of Sale | 1 |
| Applications | 540XP Mark III, T540 XP II, T540 XP Mark III, T540XP, T540XPII, T540XPMarkIII |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | T540XP | T540XPII | T540 XP Mark III | 540XP Mark III |
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