Senix
Gas Walk-Behind Mower

Model #LSSGBS-M Official Senix lawn mower

Here are the diagrams and repair parts for Senix LSSGBS-M lawn mower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Showing 10 of 95 parts

REAR FIXED SEAT#6

Lawn mower Diagram

Rear fixed seat

Part #201101000059
This item is not returnable
In Stock
$15.02
Lawn Mower 21-in Deck 3-in-1 Blade#12

Lawn mower Diagram

Lawn mower 21-in deck 3-in-1 blade

Part #201045000246
This item is not returnable
In Stock
$17.55
WHEEL#26

Lawn mower Diagram

Wheel

Part #207150100019
In Stock
$10.72
RIGHT GEAR#22

Lawn mower Diagram

Right gear

Part #201004000439
This item is not returnable
In Stock
$4.96
WHEEL#25

Lawn mower Diagram

Wheel

Part #207150100020
In Stock
$23.97
STIFLED PIECE#47

Lawn mower Diagram

Stifled piece

Part #202072000019
In Stock
$8.01
NET BAG#46

Lawn mower Diagram

Net bag

Part #299001000110
In Stock
$30.13
Lawn Mower Blade Drive Belt#7

Lawn mower Diagram

Lawn mower blade drive belt

Part #207130100002
In Stock
$7.61
FLANGE NUT#4

Lawn mower Diagram

Flange nut

Part #8NE-08D01
This item is not returnable
In Stock
$2.16
Lawn Mower Deflector Shield#48

Lawn mower Diagram

Lawn mower deflector shield

Part #202030001118
This item is not returnable
In Stock
$6.11

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

March 1, 2016
By Lyle Weischwill
How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cracked.

Repair difficulty
Time required
 15 minutes or less
March 1, 2016
By Lyle Weischwill
How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged.

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to replace this tiny but essential part.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

February 11, 2023

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By Lyle Weischwill

Learn about the top 10 must-have electric lawn & garden tools for 2023

August 30, 2022

How to enjoy all the online benefits we offer on our Sears PartsDirect website

By Lyle Weischwill

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.

August 5, 2022

Introducing new technical repair content that we’re developing for the Sears Technical Institute

By Lyle Weischwill

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.