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Model # 917278120 Official Companion lawn tractor
Here are the diagrams and repair parts for Official Companion 917278120 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
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917278120 Riding Mowers & Tractors
#11
Wheels and tires diagram
Lawn tractor axle cap
Part #104757X428
Replaced by #532104757
?
Manufacturer substitution
This part replaces 104757X428. Substitute parts can look different from the original.
This item is not returnable
$6.18 |
14% OFF Phone Price : $7.18
In Stock
Lock nut
Part #73900600
Replaced by #532409149
?
Manufacturer substitution
This part replaces 73900600. Substitute parts can look different from the original.
This item is not returnable
$6.11 |
14% OFF Phone Price : $7.11
In Stock
#15
Steering assembly diagram
Hex flange lock nut
Part #145212
Replaced by #532409149
?
Manufacturer substitution
This part replaces 145212. Substitute parts can look different from the original.
This item is not returnable
$6.11 |
14% OFF Phone Price : $7.11
In Stock
#30
Mower diagram
Lawn tractor bolt
Part #173984
Replaced by #584953901
?
Manufacturer substitution
This part replaces 173984. Substitute parts can look different from the original.
This item is not returnable
$4.36 |
19% OFF Phone Price : $5.36
In Stock
#43
Electrical diagram
Solenoid with brass plunger
Part #178861
Replaced by #532146154
?
Manufacturer substitution
This part replaces 178861. Substitute parts can look different from the original.
$28.30 |
17% OFF Phone Price : $34.30
In Stock
#186
Chassis and enclosures diagram
Lawn tractor bagger attachment chute strap
Part #160793
Replaced by #597000601
?
Manufacturer substitution
This part replaces 160793. Substitute parts can look different from the original.
$8.76 |
10% OFF Phone Price : $9.76
In Stock
#116
Mower diagram
Lawn mower shoulder bolt
Part #184219
Replaced by #596434404
?
Manufacturer substitution
This part replaces 184219. Substitute parts can look different from the original.
$7.64 |
12% OFF Phone Price : $8.64
In Stock
#3
Wheels and tires diagram
Tire
Part #106222X
Replaced by #532122073
?
Manufacturer substitution
This part replaces 106222X. Substitute parts can look different from the original.
$59.98 |
9% OFF Phone Price : $65.98
In Stock
#38
Peerless pmst transaxle diagram
Brake pad
Part #799021
Replaced by #799021
?
Manufacturer substitution
This part replaces 799021. Substitute parts can look different from the original.
$9.32 |
10% OFF Phone Price : $10.32
In Stock
#5
Wheels and tires diagram
Lawn tractor front wheel rim assembly 6-in
Part #106732X624
Replaced by #532106732
?
Manufacturer substitution
This part replaces 106732X624. Substitute parts can look different from the original.
$79.98 |
7% OFF Phone Price : $85.98
In Stock
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: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…
Main causes: faulty battery, bad alternator…
Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…
Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…
Main causes: shift lever needs adjustment, neutral control needs adjustment…
Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…
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 a mandrel assembly on a riding lawn mower
Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…
Repair difficulty
Time required
30 minutes or less
How to replace the flywheel key on a riding lawn mower
If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…
Repair difficulty
Time required
60 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 difficulty
Time required
30 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.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Check the starter solenoid, starter motor, wiring, battery and engine.…