Medium
30-60 minutes
This is a genuine OEM supplied item that is made for riding lawn mowers and garden tractors. It is a high-quality replacement for a damaged or a missing idler arm that was installed on a new unit. Refer to the owner's manual and the appropriate diagrams for your model to ensure the proper repair procedure. Note, this high-quality idler arm is made of durable metal and is sold as an individual item. A wrench set will be needed to perform this repair.
Arm Idler 42 531166601
OEM part for: Husqvarna, Ryobi, Poulan, Weed Eater, Jonsered
Part Number: 531166601
$17.43
In Stock
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Compatibility
This Arm Idler 42 will fit the following 682 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Ryobi
Husqvarna
Poulan
Weed Eater
Jonsered
Show More Compatible ModelsThis item works with the following types of products:
- Lawn Tractor Parts
- Lawn Mower Parts
This part replaces obsolete part #: 155046X421, 532155046, 532176932, 155046
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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.
Blades would not dis-engage, engine had to be turned off and manually dis-engage.
Jimmy - March 27, 2016
👍 2 of 2 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Pliers, Socket set, Wrench Set
I removed deck from mower so I could see moving parts better. I am 73 years young and laying on my side looking under mower was not my cup of tea. Upon removing deck I could see the results of 11 years of use. The parts were worn extremely bad and were hanging up and not releasing the Idler pulley when moving lever to dis-engage blades. I should have ordered 2 Arm assembly Pad Brake but as it turned out one was not worn as bad as the other. The job was relatively easy. Just removed spring tensions first and laid them aside. Proceeded to remove nuts from carriage bolt. Put new parts on and put deck under mower. Mowed an acre of grass and had no problems. On a parts quality note..... The Arm Assembly pad Brake has a bolt on end that has a roller on it that is used in the disengage mode. On the original arm it was a thru bolt with nylon lock nut. The new one is just pressed in and I think it should have been spot welded where it come thru the arm. Only time will tell. If a person has a welding machine I would highly recommend putting a spot weld there as that bolt at times will have a lot of pressure on it as it slides around the edge of idler arm.
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Worn and needed replaced
RICHARD - May 8, 2020
Tool Type
Lawn Mower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set
Parts Used
1. Removed mower deck
2. Removed arm idler
3. Cleaned and greased arm idler area
4. Installed new arm idler
5. Installed mower deck
2. Removed arm idler
3. Cleaned and greased arm idler area
4. Installed new arm idler
5. Installed mower deck
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Belt kept coming off
Ruth - May 25, 2019
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Adjustable Wrench
Parts Used
Replaced belt guard
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Mower deck was hard to clutch in and out
louis - August 9, 2017
Tool Type
Lawn Tractor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Pliers, Socket set
Dropped the mower deck
Removed the idler
Removed and replaced the brake arm assembly and the idler and associated washers
Replaced the idler arm and the brake arm assembly
Do not lubricate any of the replaced parts. Oil will contaminate with dirt and wear out quickly!!
Removed the idler
Removed and replaced the brake arm assembly and the idler and associated washers
Replaced the idler arm and the brake arm assembly
Do not lubricate any of the replaced parts. Oil will contaminate with dirt and wear out quickly!!
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Lawn mower blades could not be disengaged.
mlchael - August 18, 2016
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Socket set, Wrench Set
1. Removed mower deck.
2. Removed pulley that attaches to the idler return spring.
3. Removed old worn idler arm.
4. Installed new idler arm, pulley and deck.
2. Removed pulley that attaches to the idler return spring.
3. Removed old worn idler arm.
4. Installed new idler arm, pulley and deck.
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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.
