Husqvarna Worm Wheel - 582 81 40-01
Best current price£5.91from Blueperry agriculture (UK)
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eBayWorm Drive Wheel - Husqvarna 550 XP/XPG Mark II (serial up to 20252415397)
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Worm Drive Wheel - Husqvarna 550 XP/XPG Mark II (serial up to 20252415397)Free delivery in 1–3 days£12.54Visit shop →
Product Information
Full details
This genuine Husqvarna Worm Wheel (582 81 40-01) is designed for professional landscapers and homeowners maintaining Husqvarna Mark II series chainsaws. It serves as a vital component for the chain oiler system, ensuring your bar and chain remain properly lubricated during operation. While this OEM part guarantees a precise fit, installation requires a moderate level of mechanical proficiency to avoid damaging the chainsaw casing or internal drive components.
All features
| Model Part Number | 582 81 40-01 |
|---|---|
| Brand | Husqvarna |
Extended Product Information
FAQs
Is this part compatible with my 550 XP (Original model)?
No, this part is specifically designed for the Mark II generation of 545 and 550 models.
How often should I inspect the worm wheel?
It is recommended to inspect the drive assembly every 50-100 hours of operation or whenever you notice a decline in oil flow.
Do I need special tools to replace this?
You will typically need a clutch tool, a scrench, and potentially snap-ring pliers, depending on your specific model's clutch assembly.
What kind of grease should I use during installation?
Use a high-temperature lithium-based or specialized chainsaw gear grease.
Can I replace just the worm wheel if the oil pump is damaged?
If the oil pump itself is damaged, you may need to replace the entire pump assembly for reliable performance.
Troubleshooting
Chain is not receiving oil during operation
Check the worm wheel for stripped teeth and ensure the oil pump drive is correctly engaged.
Worm wheel is binding or difficult to install
Verify the housing is free of debris and ensure the wheel is aligned correctly with the pump drive shaft.
Pros and Cons
Pros
- Guaranteed factory fit for specified Husqvarna models
- Restores efficient chain lubrication
- High-grade material construction
- Reduces risk of premature bar and chain failure
Cons
- Installation requires partial disassembly of the chainsaw
- Not compatible with older non-Mark II Husqvarna models
- Requires proper grease application during install
Setup, Compatibility & Care
To ensure proper compatibility, confirm your chainsaw is one of the following models: Husqvarna 545 Mark II, 545G Mark II, 550 XP G Mark II, or 550 XP Mark II.
Installation Steps
- Disconnect the spark plug wire for safety.
- Remove the clutch cover, bar, and chain.
- Access the oil pump drive assembly by removing the clutch drum.
- Carefully remove the damaged worm wheel, ensuring no debris falls into the crankcase.
- Apply a light coat of high-quality chainsaw grease to the new worm wheel before seating it.
- Reassemble the components in the reverse order and test for proper oil flow at low RPM.
Care Tips
Always keep the oil reservoir clean and use the correct grade of bar and chain oil to prevent sludge buildup that can bind the worm wheel teeth.