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Companion 917278040 lawn tractor Parts
Here are the diagrams and repair parts for Companion 917278040 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 917278040 Riding Mowers & Tractors
Drive diagram
Tower Lawn Tractor Torque Strap
Part #169182Replaced by #532169182
Manufacturer substitutionThis part replaces 169182. Substitute parts can look different from the original.In Stock$44.36
Qty
Drive diagram
Nut
Part #73350600Replaced by #873220600
Manufacturer substitutionThis part replaces 73350600. Substitute parts can look different from the original.This item is not returnableIn Stock$9.26QtyMower lift diagram
Husqvarna Lawn Tractor Deck Lift Lever Plunger
Part #159460Replaced by #532159460
Manufacturer substitutionThis part replaces 159460. Substitute parts can look different from the original.In Stock$42.5612% OFF Phone Price : $48.56
QtyElectrical diagram
Lawn Tractor Seat Switch
Part #121305XReplaced by #532421062
Manufacturer substitutionThis part replaces 121305X. Substitute parts can look different from the original.This item is not returnableIn Stock$40.4813% OFF Phone Price : $46.48QtyDrive diagram
Lawn Tractor Brake Rod
Part #175765Replaced by #532175765
Manufacturer substitutionThis part replaces 175765. Substitute parts can look different from the original.This item is not returnableIn Stock$9.26QtyHydro-gear transaxle 322-0510 diagram
Silicon Spon
Part #170438Replaced by #583057701
Manufacturer substitutionThis part replaces 170438. Substitute parts can look different from the original.In Stock$111.12QtyDrive diagram
Bolt
Part #72140508Replaced by #595901501
Manufacturer substitutionThis part replaces 72140508. Substitute parts can look different from the original.This item is not returnableIn Stock$7.40QtySeat assembly diagram
Nut
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 : $7.47Qty#NI03
All parts diagram
Lift Handle Decal
Part #138311Replaced by #581724901
Manufacturer substitutionThis part replaces 138311. Substitute parts can look different from the original.This item is not returnableIn Stock$5.54QtyHydro-gear transaxle 322-0510 diagram
Spring
Part #189386Replaced by #51529
Manufacturer substitutionThis part replaces 189386. Substitute parts can look different from the original.In Stock$27.62Qty
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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