Free standard ground shipping within the 48 contiguous states with any water filter subscription. Find my filter

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

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.

Companion 917278120 lawn tractor
By Schematic
By Part
SELECT DIAGRAM
?

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

Browse Parts for917278120 Riding Mowers & Tractors

  • Spur Gear for Companion 917278120 - Part 778337

    Peerless pmst transaxle diagram

    Spur Gear

    Part #778337

    Replaced by #778337

    Info Icon
    Manufacturer substitution
    This part replaces 778337. Substitute parts can look different from the original.
    In Stock
    $32.03
    Minus Item
    Qty
    Plus Item
  • Transaxle for Companion 917278120 - Part 794715

    Peerless pmst transaxle diagram

    Transaxle

    Part #794715

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

  • Husqvarna Lawn Tractor Steering Sector Gear And Plate Assembly for Companion 917278120 - Part 175146

    Steering assembly diagram

    Husqvarna Lawn Tractor Steering Sector Gear And Plate Assembly

    Part #175146

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

  • Retainer Ring for Companion 917278120 - Part 792035

    Peerless pmst transaxle diagram

    Retainer Ring

    Part #792035

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

  • Spur Gear for Companion 917278120 - Part 778369

    Peerless pmst transaxle diagram

    Spur Gear

    Part #778369

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

  • Saddle Brake Parking Decal for Companion 917278120 - Part 140837

    Decals diagram

    Saddle Brake Parking Decal

    Part #140837

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

  • Dash Decal for Companion 917278120 - Part 181685

    Decals diagram

    Dash Decal

    Part #181685

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

  • Retainer Ring for Companion 917278120 - Part 788040

    Peerless pmst transaxle diagram

    Retainer Ring

    Part #788040

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

  • Fender Decal for Companion 917278120 - Part 182484

    Decals diagram

    Fender Decal

    Part #182484

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

  • Housing Assembly for Companion 917278120 - Part 165552

    Mower diagram

    Housing Assembly

    Part #165552

    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
Electric Range
Freestanding Ice Maker
Front-Engine Lawn Tractor
Gas Range
Parts
Power Sander
Refrigerator
Room Air Conditioner
Top-Mount Refrigerator
Washer