Medium
30-60 minutes
This is an authentic Kohler replacement part that has been sourced from the original manufacturer to be used with small engines. The metal woodruff key is used to link a rotating shaft and gear. The key will fit into the slot on the shaft and match a keyway in the gear. This item is sold as an individual replacement part.
Key: 3/16 X 5/8 X-42-15-S
OEM part for: Kohler
Part Number: X-42-15-S
$4.99
In Stock
Ships within 1 business day 
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Compatibility
This Key: 3/16 X 5/8 will fit the following 8338 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Kohler
Show More Compatible ModelsThis item works with the following types of products:
- Engine Parts
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First repair attempt...worked like a charm!
Not a fan of USPS delivery. Part arrived a day late, however, once installed after watching a few online videos my tractor started right up! Bought a spare, just in case!
Guest -
April 13, 2021
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Questions & Answers ?
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Does this fit my product?Questions & Answers for Key: 3/16 X 5/8
Is this a correct fit with above mentioned model? I have seen square shaped and another Is like 1/2 moon shaped. Any difference between the two shapes. Thanks
Joe
for model number Kholer 21 sv 610-0212
asked on 2022-04-30
Hi Joe,
Thank you for your question. Yes, this would be the correct key for your engine. Woodruff keys are used on shafts that are 2-1/2 inches in diameter. The square key is used on shafts with a 1 inch diameter. If you need help placing an order for the keys, customer service is open 7 days a week and anyone will be happy to assist you. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team April 30, 2022
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.
Rebuild
Thomas - November 28, 2015
👍 1 of 2 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, impact, fiy wheel puller, small hammer.
Remove bolt from crank, pull pulley off of crank, remove nut from fly wheel use puller to remove the fly wheel.Replace seals on sump and top of block fly wheel side, put new woodruff key in bottom slot put pulley back on and bolt down. Put fly wheel back on make sure key is in place torque fly wheel nut to specs.
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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.
