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Companion 917278120 lawn tractor Parts
Here are the diagrams and repair parts for Companion 917278120 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 917278120 Riding Mowers & Tractors
Drive diagram
Lawn & Garden Equipment Lock Nut
Part #73680400Replaced by #586668901
Manufacturer substitutionThis part replaces 73680400. Substitute parts can look different from the original.This item is not returnableIn Stock$6.4713% OFF Phone Price : $7.47
Qty
Peerless pmst transaxle diagram
Dowel Pin
Part #786026Replaced by #786026B
Manufacturer substitutionThis part replaces 786026. Substitute parts can look different from the original.This item is not returnableIn Stock$5.3716% OFF Phone Price : $6.37QtyNut
Part #123976XReplaced by #586668901
Manufacturer substitutionThis part replaces 123976X. Substitute parts can look different from the original.This item is not returnableIn Stock$6.4713% OFF Phone Price : $7.47QtyDrive diagram
Rally Flat Pulley
Part #165630Replaced by #532165630
Manufacturer substitutionThis part replaces 165630. Substitute parts can look different from the original.In Stock$96.70QtyDrive diagram
Lawn Tractor Screw
Part #17490510Replaced by #594094101
Manufacturer substitutionThis part replaces 17490510. Substitute parts can look different from the original.This item is not returnableIn Stock$3.69QtyPeerless pmst transaxle diagram
O-ring
Part #788092Replaced by #788092
Manufacturer substitutionThis part replaces 788092. Substitute parts can look different from the original.This item is not returnableIn Stock$4.60QtyPeerless pmst transaxle diagram
Retaining Ring
Part #792125Replaced by #792125
Manufacturer substitutionThis part replaces 792125. Substitute parts can look different from the original.This item is not returnableIn Stock$4.9517% OFF Phone Price : $5.95QtyDrive diagram
Rally Lawn Tractor Ground Drive Fixed Idler Pulley
Part #165936Replaced by #532165936
Manufacturer substitutionThis part replaces 165936. Substitute parts can look different from the original.In Stock$57.70QtyPeerless pmst transaxle diagram
Spring
Part #792079Replaced by #792079
Manufacturer substitutionThis part replaces 792079. Substitute parts can look different from the original.This item is not returnableIn Stock$3.8521% OFF Phone Price : $4.85QtyPeerless pmst transaxle diagram
Washer
Part #780189Replaced by #780189
Manufacturer substitutionThis part replaces 780189. Substitute parts can look different from the original.This item is not returnableIn Stock$4.40Qty
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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