Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number

Companion 917278121 lawn tractor Parts

Here are the diagrams and repair parts for Companion 917278121 lawn tractor, as well as links to manuals and error code tables, if available.

Companion 917278121 lawn tractor
By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for 917278121 Riding Mowers & Tractors

  • Carriage Bolt for Companion 917278121 - Part 72140416

    Bagger diagram

    Carriage Bolt

    Part #72140416

    The manufacturer no longer makes this part, and there's no substitute part

  • Mulch Handle for Companion 917278121 - Part 165570

    Bagger diagram

    Mulch Handle

    Part #165570

    The manufacturer no longer makes this part, and there's no substitute part

  • Lawn Tractor Crownlock Nut for Companion 917278121 - Part 73540400

    Steering assembly diagram

    Lawn Tractor Crownlock Nut

    Part #73540400

    The manufacturer no longer makes this part, and there's no substitute part

  • Side.seal.lh for Companion 917278121 - Part 185703

    Chassis and enclosures diagram

    Side.seal.lh

    Part #185703

    The manufacturer no longer makes this part, and there's no substitute part

  • Clutch for Companion 917278121 - Part 180354

    Drive diagram

    Clutch

    Part #180354

    The manufacturer no longer makes this part, and there's no substitute part

  • Tube.lower.b for Companion 917278121 - Part 165785

    Bagger diagram

    Tube.lower.b

    Part #165785

    The manufacturer no longer makes this part, and there's no substitute part

  • Cap Wheel St for Companion 917278121 - Part 140175

    Steering assembly diagram

    Cap Wheel St

    Part #140175

    The manufacturer no longer makes this part, and there's no substitute part

  • Brkt.exten.c for Companion 917278121 - Part 180382

    Chassis and enclosures diagram

    Brkt.exten.c

    Part #180382

    The manufacturer no longer makes this part, and there's no substitute part

  • Husqvarna Lawn Tractor Headlight Lens (clear) for Companion 917278121 - Part 174332X599

    Chassis and enclosures diagram

    Husqvarna Lawn Tractor Headlight Lens (clear)

    Part #174332X599

    The manufacturer no longer makes this part, and there's no substitute part

  • Rally Bagger Handle for Companion 917278121 - Part 169916

    Bagger diagram

    Rally Bagger Handle

    Part #169916

    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

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

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

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.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Jump-starting a riding lawn mower battery video

Jump-starting a riding lawn mower battery video

Learn how to connect cables safely to jump-start your mower’s battery.…

Parts & More

Bottom-Mount Refrigerator
Chest Freezer
Dryer
Electric Cooktop
Elliptical Machine
Exercise Cycle
Front-Engine Lawn Tractor
Gas Range
Laundry Center
Microwave
Microwave/Hood Combo
Others
Parts
Top-Mount Refrigerator
Wine & Beverage Cooler