Model #9178420 Official Craftsman heavy-duty riding unit
Here are the diagrams and repair parts for Craftsman 9178420 heavy-duty riding unit, as well as links to manuals and error code tables, if available.
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Showing 10 of 234 parts
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E-ring
Lock washer
Washer 17/64
Lock washer
Screw
Part #17860412
The manufacturer no longer makes this part, and there's no substitute part
Symptoms common to all riding mowers & tractors
Repair guides common to all riding mowers & tractors
These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.
Your mower can’t run on a damaged rear tire. Here’s how to install a new one.
If a blade on your mower is dull or bent, replace it following the steps in this repair guide.
Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.
Articles and videos common to all riding mowers & tractors
Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.
Learn how a blade removal tool makes replacing the blade easier and safer
Keep these 6 things on hand to keep the mower season running smoothly.
Learn how to use a battery charger if your mower battery is dead.