This is an OEM part sourced directly from the manufacturer. The worm gear is commonly found in Husqvarna chainsaws. This part is made of high-quality plastic, and is placed in the oil pump assembly. You may require a wrench, screwdriver, and pliers when replacing this item. The worm gear is provided as an individual replacement part.
Troubleshooting
This part works with the following brands:
Husqvarna
Jonsered
This part works with the following products:
Chainsaw
Part# 503557501 replaces these:
503557501,
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Customer Part Reviews
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★★★★★
★★★★★
Working as expected
Quick arrival and good fitting
Iglobal - November 22, 2019
Verified Purchase
Customer Repair Instructions
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Easy
15 - 30 mins
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Chainsaw bar not getting oil also clutch worn and choke handle missing
After troubleshooting problem with auto lube and making a list of parts. The next easy thing was finding and ordering parts at ereplacementparts.com. When parts arrived it was simple to change choke handle with needle nose pliers. Next was taking off bar and chain then using a cordless impact gun to remove the clutch assembly Note: revers
... Read moree threads-clockwise to loosen. After the clutch remove the clutch drum, needle bearing and drive sprocket. Using a screwdriver pry up the worm gear (teeth were worn down and not turning oil pump) applied a little grease to worm gear teeth and installed. Reassembled chainsaw and tested. Chain and bar now gets oiled and choke handle makes for easy starting. Simple fix and easy getting parts from website.
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Model Cross Reference
This part works with the following models:
ERP Number: ERP8991092
Manufacturer Part Number: 503557501
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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_WW_4.gif "Part Location Diagram of 503557501 Husqvarna Worm Gear")
_WW_4.gif "Part Location Diagram of 503557501 Husqvarna Worm Gear")
