Easy
15-30 minutes
This hardware is an authentic OEM sourced item. It is a specially manufactured for use with lawn and garden equipment. A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. This part has multiple applications depending on the equipment. Please always check appropriate diagrams for correct location and use of this item. Please note, it is sold individually. You will need a wrench to secure or remove this nut.
Locknut 596322601
OEM part for: Husqvarna, Poulan, Ryobi, Weed Eater, Craftsman, Murray, Jonsered
Part Number: 596322601
$3.99
In Stock
Ships within 1 business day 
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Compatibility
This Locknut will fit the following 7489 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Poulan
Ryobi
Weed Eater
Husqvarna
Craftsman
Murray
Jonsered
Show More Compatible ModelsThis item works with the following types of products:
- Lawn Mower Parts
- Lawn Tractor Parts
- Snowblower Parts
- Trimmer Parts
- Heater Parts
- Grass Trimmer Parts
- Cultivator Parts
This part replaces obsolete part #: 873680600 (Unc), 5327515-92, 5330014-99, 8739806-00, 5066251-01, 873680600 (Unf), 533124925, 533071046, 533045171, 533001499, 532751592, 532007810, 873610600, 73800600, 8736106-00, 8738006-00, 8739306-00, 8736806-00, 873530600, 873800600, 873560600, 73690600, 7810H, 73540600, 73610600, 873980600, 73680600, 73930600, 751592, 873930600, 873680600
Customer Part Reviews ?
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VERY HAPPY customer; found parts I really needed
Reworked old Craftsman mower; some parts on back order for a long time but eventually they all came in....love ereplacementParts.com
Rita -
September 7, 2022
Verified Purchase
Perfect replacement
perfect part
Michael -
July 20, 2021
Verified Purchase
right fit and size
Size was perfect for the shoulder wheel bolts and it has a locking triangular pattern on one side. So even if you leave the bolt with a little slack, the nut is not coming off unless you take it off.
caleb -
April 18, 2021
Verified Purchase
Questions & Answers ?
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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.
Deck idlers worn out
Thomas - July 15, 2021
Tool Type
Lawn Mower
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
Removed old idlers, had to cut bolts with grinder, replaced idlers with new bolts and spacers
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Original idler pulley had a broken flange which let the drive belt slip off.
Dave - May 3, 2020
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Socket set, Wrench Set
1. Removed the bolt holding the idler pulley and belt keeper from chassis.
2. Ordered new pulley and bolt/nut ( old bolt and nut were toast)
3. Received new pieces and installed in reverse order, after figuring out how the belt keeper was positioned.
4. Test drive tractor - Success.
2. Ordered new pulley and bolt/nut ( old bolt and nut were toast)
3. Received new pieces and installed in reverse order, after figuring out how the belt keeper was positioned.
4. Test drive tractor - Success.
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Bolts on wheels were stripped
Brian - June 28, 2019
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set
Parts Used
Removed and replaced bolts and nuts
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Bolt broke on mower deck
eric - June 23, 2018
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Removed bolt and wheel and replaced bolt nut washer
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One of the trolley wheel bolts broke off of the Z-T mower deck
TERENCE - April 12, 2018
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set, Wrench Set
Just installed the new bolt ,nut, washer and tightened it down, done
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
