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Craftsman 9178420 heavy-duty riding unit Parts
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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Browse Parts for 9178420 Riding Mowers & Tractors
Main frame diagram
Nut
Part #03550800
The manufacturer no longer makes this part, and there's no substitute part
Steering assembly diagram
Belt Guard
Part #4331H
The manufacturer no longer makes this part, and there's no substitute part
Transmission diagram
Gear
Part #778022
The manufacturer no longer makes this part, and there's no substitute part
Main frame diagram
Ge Shft Knob
Part #4380H
The manufacturer no longer makes this part, and there's no substitute part
Transmission diagram
Gear
Part #778020
The manufacturer no longer makes this part, and there's no substitute part
Main frame diagram
Tire
Part #6030H
The manufacturer no longer makes this part, and there's no substitute part
Main frame diagram
Retainer Ring
Part #4369H
The manufacturer no longer makes this part, and there's no substitute part
Main frame diagram
King Pin
Part #615A18
The manufacturer no longer makes this part, and there's no substitute part
Generator diagram
Battery Cover
Part #6095H
The manufacturer no longer makes this part, and there's no substitute part
Steering assembly diagram
V-belt
Part #5165H
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your riding mowers & tractors
Choose a symptom to see related riding mower and lawn tractor repairs.
Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…
Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …
Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
Main causes: faulty battery, bad alternator…
Main causes: shift lever needs adjustment, neutral control needs adjustment…
Most common repair guides to help fix your riding mowers & tractors
These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.
How to replace the starter solenoid on a riding lawn mower
Replace the starter solenoid if it doesn't click when you turn the ignition key.…
Repair time and Difficulty
30 minutes or less
How to replace a riding lawn mower ignition coil
If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…
Repair time and Difficulty
30 minutes or less
How to replace a riding lawn mower fuel filter
Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your 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.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn some of the most common symbols found in a wiring diagram and what they mean.…
Learn how to connect cables safely to jump-start your mower’s battery.…
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