Description
Overview:
This Worm Gear is a genuine Husqvarna spare part designed for the 357XP and 359 chainsaws. It transfers rotational drive to the chain oil pump, helping to maintain consistent bar and chain lubrication and smooth overall operation. Built from durable, wear‐resistant material, it is made to cope with the heat, vibration and load cycles found around the clutch side of a professional chainsaw. As an exact-fit component, it integrates cleanly with the existing drive system on Husqvarna 357XP and 359 models, restoring reliable performance when the original gear has worn or stripped. Suitable for tradespeople and DIY users alike, it is a practical replacement to keep your saw working efficiently and to protect the bar and chain from premature wear. Genuine Husqvarna part.
Key Features:
- Genuine Husqvarna part for assured compatibility and quality
- Transfers drive to the oil pump for steady bar and chain lubrication
- Durable, wear-resistant construction for long service life
- Precision moulding for smooth meshing and reliable power transmission
- Correct fit on the clutch/crankshaft drive area for easy installation
- Helps prevent under-lubrication that can overheat bar and chain
- Ideal preventative replacement during clutch or oil pump servicing
- Manufacturer Part Number: 503 91 27-03 (503912703)
Typical Applications:
Used when a chainsaw shows poor or inconsistent chain oiling, visible wear or damage to the original gear, or during routine overhaul of the clutch and oil pump. Suitable for professional forestry, arb work, farm and estate maintenance, and general cutting tasks where dependable lubrication and drive reliability are essential.
Also known as:
Oil pump worm, oil pump drive gear, oil drive worm, helical drive gear, lubrication drive gear, oiler gear.
Fits Models:
357XP, 359
Alternate Part Numbers:
503 91 27-03, 503912703
