Easy
Less than 15 minutes
This replacement OEM part is specially designed for Poulan chainsaws. It is the tool-less knob assembly that attaches to the chain brake assembly. The knob provides a user with a comfortable grip to adjust the chain tension. It has internal threads which allow it to be secured and removed without any tools. Check the owner's manual and the diagrams of your model for the correct application of this part. One durable component is included. Chain tension is very important. Chains stretch during use. This is especially true during the first few times you use your saw. Always check chain tension each time before you start the chainsaw.
Assy, Tool-less Knob 579107301
OEM part for: Poulan
Part Number: 579107301
$6.27
In Stock
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Compatibility
This item works with the following types of products:
- Chain Saw Parts
- Saw Parts
This part replaces obsolete part #: 545146402, 545081875
Customer Part Reviews ?
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Great part and very fast shipper.
Very easy to order, part arrived fast and worked great.
Guest -
October 12, 2021
Verified Purchase
Chainsaw part.
Speedy service and correct part. My chainsaw is working better than ever. Thanks much!
Guest -
April 14, 2020
Verified Purchase
Easy repair replacement works great on chainsaw
Fast shipping good communication and will do business again with seller
Guest -
October 9, 2019
Verified Purchase
Toolless knob for chainsaw
It fits and works great! Fast shipping!
Hoskie -
August 9, 2019
Verified Purchase
Part as described
Part was as described and arrived quickly.
Guest -
June 10, 2019
Verified Purchase
Easy repair worked as advertised
Part was great ,but don't believe the ship message mine says ships in 1 day it didn't ship for 4 days
Guest -
November 6, 2020
Verified Purchase
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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.
The lock for keeping the chain tight was broke. Easy fix.
Gary - April 28, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, None
Parts Used
Simple, remove the broken piece, install the new one
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Tool-less knob assembly broken
Jim - June 28, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Medium
Time
15-30 minutes
Tools Used
Parts Used
I didn't have to remove broken knob assembly as it fell off during using the chainsaw. Chain and bar came loose, with chain flying off. Reinstalled all parts with new knob.
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Chain tensioner broke and would not work properly.
John - January 7, 2022
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, None
Parts Used
No tools necessary. The knob that tightens the chain on my saw simply spins on and helps chain tension.
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The chain adjustment knob the center tab used to loosen the chain broke
Jeff - April 20, 2020
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers
Parts Used
1 removed broken knob with pliers
2 replaced with the new knob (from replacement parts)
2 replaced with the new knob (from replacement parts)
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Tool-less knob broke, chain kept loosening.
Robert - May 21, 2018
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, Brush and compressor to clean out build up under housing.
Parts Used
Removed broken tool-less knob with plyers.
Brush cleaned build up around threads and housing.
Aligned chainsaw blade, chain reattached housing.
Tensioned blade properly, tightened tool-less knob.
Chainsaw works perfectly again!
Brush cleaned build up around threads and housing.
Aligned chainsaw blade, chain reattached housing.
Tensioned blade properly, tightened tool-less knob.
Chainsaw works perfectly again!
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Blade adjustment knob lost pin and spring
Jerry - December 25, 2016
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Parts Used
No tools necessary. Just threaded it on.
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Knob spring- lever broke off.
RAYMOND - June 30, 2016
👍 0 of 1 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, None
Parts Used
Simple repair, just screwed the new knob onto the stud with my hands.
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Broken Tool-Less Knob
Robert - March 30, 2016
👍 0 of 1 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers
Parts Used
Just simply thread the the tool-less knob on.
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Thanks for voting and helping fellow customers!
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
